When you buy through affiliate links in our content, we may earn a commission at no extra cost to you. Learn In addition to cheaper phone bills and higher quality calls, the best VoIP app for iPhone will allow Apple-device users to take calls, read messages, and even shares files from anywhere. Whether you’re at the office, home, or off-site, you can be present and available for your business.
While not all VoIP apps are compatible with iPhones, there are hundreds that are. To help speed up your search, I’ve compiled this list of the best iOS-compatible VoIP apps. I’ve focused on key product criteria like reliability (call uptime), security, value for money, and the variety of phone numbers on offer.
The Best VoIP Apps for iPhone for Businesses Tested by Our Experts
The Top 10 VoIP Phone Apps for iPhone Ranked
- Ooma Office – Best VoIP app for iPhone for comprehensive plans
- Zoho Voice – Best VoIP iPhone app for integration with Zoho suite
- Vonage Business Communications – Powerful enterprise VoIP app for iPhone
- Nextiva – Best user-friendly iPhone VoIP app
- Phone.com – Best budget-friendly VoIP app for iPhone
- MightyCall – Robust iPhone VoIP calling app for remote teams
- RingCentral – Top collaborative VoIP app for iPhone
- Sonetel – Best free phone app for iPhone
- Webex Call – Best VoIP app for iPhone for security and compliance
- GoTo Connect – Best VoIP iPhone app for international calls
- Show Full Guide
The Best VoIP iPhone Services Reviewed
I’ve tested and reviewed each of the top VoIP services for iPhone, looking at their features, pricing, and their pros and cons. This will ensure you find a product that meets your needs while fitting your budget.
You’ll see plenty of cross-over between this list and my comprehensive guide to the best VoIP services for businesses.
1. Ooma Office – Best VoIP App for iPhone for Comprehensive Plans
| Starting Price | $19.95/user/month |
|---|---|
| Free Version | ✅ |
| Trial Period | 60-day free trial |
| Key Features | Voicemail management, Advanced call management, Messaging |
| iOS Requirements | iOS 15.0 or later |
| Apple App Store Rating | 4.9/5 |
Why We Picked It
I picked Ooma because it arguably offers better value for money than most VoIP providers. Its range of advanced features is included in highly affordable pricing plans. My testing and research showed that its iPhone app is an easy-to-use solution for communication on the go.
Features
- Voicemail management — Ooma’s iOS app allows you to listen to and organize voicemails on the go.
- Advanced call management — Beyond simply receiving calls on your mobile, you can also block, record, and transfer calls.
- Messaging — To support team communication, Ooma’s app offers a straightforward messaging feature that allows users to create personal avatars and send pictures. The newest version includes one-to-many messaging which allows you to send an SMS to up to 25 destinations at once (Pro tier only).
The latest version of Ooma’s app allows you to schedule a break with a ‘Do Not Disturb’ setting that directs all calls to your voicemail.
Ooma’s Pricing
Ooma offers three pricing plans to cater to various business sizes and budgets. Below, I’ve outlined the cost of each plan and what is included. The mobile app is free to download, provided you have an existing contract with Ooma.
| Plan | Ooma Office Essentials | Ooma Office Pro | Ooma Office Pro Plus |
|---|---|---|---|
| Monthly price | $19.95/user/month | $24.95/user/month | $29.95/user/month |
- Ooma Office Essentials — 50+ standard calling features, unlimited calling to Canada, the U.S., Mexico, and Puerto Rico, IVR, and a mobile app.
- Ooma Office Pro — Everything in Essentials, plus 250 text messages per month, video conferencing for up to 25 participants, call recording, and a desktop app.
- Ooma Office Pro Plus — Everything in Pro, plus CRM integrations, 1000 text messages per month, video conferencing for up to 100 participants, team chat features, hot desking, and call queuing.
Who It’s Best For
While I recommend Ooma’s desktop version for hybrid and remote teams looking to stay in touch with each other, Ooma’s mobile app works better at handling external calling.
While it does offer team chat, the lack of video conferencing on the app could limit internal communication with your colleagues. That said, the voicemail, call recording, and call transfer features are ideal for receiving customer calls. If you’re looking for a mobile video calling platform, Vonage or RingCentral could be more suitable.
Pros
- Voicemail management tools
- In-app messaging includes picture messaging
- Call recording within the app
- Transfer calls to your personal number
Cons
- No mobile video calling in-app
- Mixed customer support reviews
2. Zoho Voice – Best VoIP iPhone App for Integration With Zoho Suite
| Starting Price | $34/user/month |
|---|---|
| Free Version | ✅ |
| Trial Period | 15-day free trial |
| Key Features | Native Zoho integration, International calls, IVR |
| iOS Requirements | iOS 13.1 or later |
| Apple App Store Rating | 4.4/5 |
Why We Picked It
I selected Zoho’s ZDialer app because it is compatible with the existing Zoho software ecosystem, enabling seamless integration of your iPhone into yout Zoho customer relationship management system.
Features
- Native integration with other Zoho apps — Enjoy maximum compatibility with Zoho CRM, Desk, Bigin, etc. by using their own VoIP system. This will allow you to make calls directly from your contact management system and automatically track communication across all your platforms.
- International numbers and calling — You can purchase international numbers and assign them to various team members. After purchasing credits, you can call internationally via your Zoho Voice plan with low-cost international rates.
- IVR — ZDialer offers Interactive Voice Response on its mobile app
Zoho Pricing
Zoho Voice offers three pricing plans to cater to various business sizes and budgets. Below, I’ve outlined the cost of each plan and what is included.
| Plan | Basic | Standard | Contact Center |
|---|---|---|---|
| Monthly price | $39/user/month | $59/user/month | $79/user/month |
| Annual price | $34/user/month | $49/user/month | $74/user/month |
- Basic — 1,000 incoming minutes and 250 outgoing minutes per month, multi-level IVR, live call tracking, call queues, call recording and monitoring, contact management, voicemail transcription, business hours and holiday, native integration with Zoho apps, power dialer, and performance metrics.
- Standard — Everything in Basic, plus 10 free agents.
- Contact Center — Everything in Standard, plus 2,500 incoming and 500 outgoing minutes, one free local number for each license, and advanced noise cancellation.
Who It’s Best For
If you’re already using Zoho, your best choice is Zoho Voice, as it offers native integrations with Zoho CRM, Recruit, and Desk. It’s the perfect comprehensive option to centralize your business data. For example, Zoho CRM lets you call contacts with a single click — and the integration works both ways.
I found Zoho’s ZDialer to be more suitable as an external calling solution than a team communication platform since it does not offer video conferencing or team messaging like Vonage or RingCentral
Pros
- Native integration with other Zoho apps
- Excellent pricing structure for large organizations
- Unlimited domestic calling on all plans
- Apps offer Dark mode
Cons
- No internal team messaging tools
- Limited integrations outside of Zoho Suite
- App reviews state slow and unstable performance
3. Vonage Business Communications – Powerful Enterprise VoIP App for iPhone
| Starting Price | $13.99/user/month |
|---|---|
| Free Version | ❌ |
| Trial Period | 14-day free trial |
| Key Features | Video meetings, App center, Call flip |
| iOS Requirements | iOS 14.0 or later |
| Apple App Store Rating | 4.7/5 |
Why We Picked It
I selected Vonage as it is an excellent option for businesses with more intricate communication requirements. Its reasonably priced Advanced plan allows for high-capacity voice and video calling, and it is compatible with a variety of third-party applications.
Features
- Video meetings — Unlike many VoIP iPhone apps, Vonage’s desktop and mobile versions support video calling. This is ideal for large hybrid or remote teams that need to stay in contact.
- App center — Vonage’s app center supports compatibility with many frequently used business apps, such as G Suite, Salesforce, and Microsoft.
- Call flip — If you need to switch a call from desktop to mobile, you can use Vonage’s call flip feature to minimize disruption.
Vonage Pricing
Vonage offers three pricing plans to cater to various business sizes and budgets. Below, I’ve outlined the cost of each plan and what is included.
| Plan | Mobile | Premium | Advanced |
|---|---|---|---|
| Monthly price | $19.99/user/month | $29.99/user/month | $39.99/user/month |
| Annual price | $13.99/user/month | $20.99/user/month | $27.99/user/month |
- Mobile — Mobile and desktop app, unlimited domestic calling, SMS and MMS, send and receive business texts and files, virtual voicemail, voicemail-to-email, phone number porting, and virtual receptionist.
- Premium — Everything in Mobile, plus a desk phone, team messaging, video conferencing with up to 200 participants, access to 20+ third-party integrations with CRMs and productivity tools, and SSO.
- Advanced — Everything in Premium, plus call groups, on-demand call recording, and visual voicemail.
Who It’s Best For
Vonage is well-suited for large companies due to its ease of deployment across the whole workforce, scalability, and user-friendly mobile and desktop apps. The admin portal of Vonage is impressive, as it allows you to monitor the system status, users, and extensions, making it an ideal feature for managers who need to oversee their entire team.
It is important to note that call recording and a virtual assistant are only available on Vonage’s top-tier plans, which is why I’d recommend Vonage for enterprise teams. Similar features are available on the base plans of some competitors, such as MightyCall.
Pros
- Easy for large organizations to deploy and manage
- Highly customizable with 120+ integrations
- Offers detailed call analytics and reporting tools
- HIPAA-compliant options for regulated industries
Cons
- Call recording only available on top-tier plan
- Mobile app reviews report call interruptions and instability
4. Nextiva – Best User-Friendly iPhone VoIP App
| Starting Price | $20/user/month |
|---|---|
| Free Version | ❌ |
| Trial Period | 7-day free trial |
| Key Features | Threaded conversations, Free local and toll-free numbers, Contact management |
| iOS Requirements | iOS 15.0 or later |
| Apple App Store Rating | 3.9/5 |
Why We Picked It
I picked Nextiva for its simplicity. It’s a user-friendly option for those who want to receive and manage customer calls on the go using their iPhone. It supports texting with a business number, mobile contact management, and 24/7 customer support for any technical issues.
Features
- Threaded conversations — Nextiva’s text messaging platform supports threaded conversations, allowing you to easily revisit previous communications. This feature is especially useful for teams, as it provides visibility into past discussions.
- Free local and toll-free numbers — As well as offering number porting, Nextiva provides free local and toll-free numbers.
- Contact management — Migrate all of your contacts to the Nextiva mobile app then organize them in the address book into ‘Favorites’, ‘Business’, and ‘Teammates’.
The latest version of the Nextiva iPhone app now offers an authentication system for better security controls.
Nextiva Pricing
Nextiva offers four pricing plans tailored to different business sizes and budgets. I have listed the cost of each plan and their respective features below. It’s important to note that while the features listed are included in the desktop app, the mobile app is a free addition and lacks many of the desktop features.
| Plan | Digital | Core | Engage | Power Suite |
|---|---|---|---|---|
| Monthly price | $20/user/month | $30/user/month | $40/user/month | $60/user/month |
- Digital — Website live chat, messaging apps, social media channels, review management, and digital service helpdesk
- Core — Everything in Digital, plus inbound and outbound voice calling, business SMS, video meetings, screenshare and file share, and call routing.
- Engage — Everything in Core, plus call center, call queuing, toll-free number and minutes, advanced reporting, MS Teams integration, and website chatbot.
- Power Suite — Everything in Engage, plus advanced IVR, intelligent routing, unified team interface, supervisor dashboard, transcription, and summarization.
Who It’s Best For
Nextiva’s mobile app is simpler compared to its competitors. The no-frills interface only has three tabs: Calls, Messaging, and Contacts. Unlike the desktop app, it lacks third-party integrations, email integration, and voicemail management. As a result, Nextiva’s mobile app is best for making and receiving calls and texts on the go. It’s suitable for small business owners who don’t need constant access to emails or advanced telephony features like call recording, monitoring, and blocking.
Pros
- Simple-to-use iPhone app
- Threaded conversations offer CRM-like functionality
- One free local and toll-free number
- Offers 24/7 customer support
Cons
- No video calling
- The mobile app is quite basic, lacking many of the desktop features
5. Phone.com – Best Budget-Friendly VoIP App for iPhone
| Starting Price | $12.74/user/month |
|---|---|
| Free Version | ❌ |
| Trial Period | 30-day money-back guarantee |
| Key Features | Visual voicemail, SMS, Call blocking |
| iOS Requirements | iOS 12.0 or later |
| Apple App Store Rating | None provided |
Why We Picked It
I selected Phone.com as a budget-friendly solution; it offers some of the lowest monthly rates for a fully-featured VoIP app for iPhone.
Features
- Visual voicemail — Never miss another voicemail with the handy visual voicemail interface in the iPhone app. This interface allows you to see exactly who called and either listen to the message or read a transcribed message.
- SMS — Send and receive text messages from any of your business phone numbers and keep business and personal messages completely separate.
- Call blocking — It’s frustrating when scam or telemarketing calls take up time on your business phone lines; to prevent them from calling again you can use Phone.com’s block feature.
Phone.com Pricing
Phone.com offers three pricing plans to cater to various business sizes and budgets. Below, I’ve outlined the cost of each plan and what is included.
| Plan | Basic | Plus | Pro |
|---|---|---|---|
| Monthly price | $14.99/user/month | $21.99/user/month | $31.99/user/month |
| Annual price | $12.74/user/month | $18.69/user/month | $27.19/user/month |
- Basic — 500 minutes per account, 1 phone number per account, video conferencing for up to 100 participants, and 50 standard voice features.
- Plus — Everything in Basic, plus unlimited minutes, 1 phone number per user, conversational text messaging, HIPAA-compliant video conferencing, video recording, IP desk phone compatibility, and voicemail transcription.
- Pro — Everything in plus, and call recording, call analytics, CRM integration, and video conferencing with HiFi transcription, whiteboard, and live streaming.
Who It’s Best For
Phone.com’s biggest USP is that it offers a premium service at budget rates so it’s an ideal solution for smaller businesses looking for an affordable VoIP app. I found that the mobile app is limited to voice calls, SMS messages, and faxes, but on a desktop or browser, you’ll get all of this plus video conferencing too. If you’re looking for a mobile video conferencing solution, check out Vonage.
Pros
- Affordable basic plan for voice calling
- Fax from your iPhone included as a standard
- Voicemail-to-email
Cons
- No video calling available on iPhone app
- SMS messaging not included on Basic plan
6. MightyCall – Robust iPhone VoIP App for Remote Teams
| Starting Price | $15/user/month |
|---|---|
| Free Version | ❌ |
| Trial Period | 7-day free trial |
| Key Features | Call recording, Language translation, Customer interactions overview |
| iOS Requirements | iOS 15.0 or later |
| Apple App Store Rating | 3.9/5 |
Why We Picked It
I’ve selected MightyCall as one of the top iPhone VoIP apps for its aptitude for managing customer interactions. It offers a clear overview of outstanding requests so that you can deal with them directly or hand them over to a teammate, leaving no customer behind.
Features
- Call recording — MightyCall offers call recording and transcription so that you can revisit and analyze calls at your convenience.
- Language translation — With a single tap, you can translate SMS messages or even voicemail transcriptions into a language of your choice; useful if you have an international client base or team
- Customer interactions overview — Organize your address book into clients, and teammates, and maintain a CRM-style overview of your previous interactions.
MightyCall Pricing
MightyCall offers four pricing plans. Below, I’ve explained each plan’s features and cost.
| Plan | Core | Pro | Power | Enterprise |
|---|---|---|---|---|
| Monthly price | $20/user/month | $30/user/month | $40/user/month | $50/user/month |
| Annual price | $15/user/month | $23/user/month | $30/user/month | $50/user/month |
- Core — Unlimited domestic (Canada and U.S.) voice calling and messaging, advanced calling features like routing, forwarding, and transferring, two business phone numbers included as standard, API access, and integrations.
- Pro — Everything in Core, plus supervisory features like call barging, listening, whispering, and recording, a supervisor workspace, live call monitoring, and analytics and reporting features.
- Power — Everything in Pro, plus progressive and preview dialer and dedicated account management.
- Enterprise — Everything in Power, plus custom integrations, SIP trunking, and predictive dialing.
Who It’s Best For
MightyCall is aimed at medium to large teams with a steady stream of customer interactions since it offers handy organizational features beyond receiving calls or messages. You can add notes to customer profiles or individual interactions, and I really like that it can visually log customer interactions like a CRM, making it that much easier to follow up with a customer.
Pros
- Call recording included with app
- Journal feature logs customer communications
- Well-designed translation feature
- Two business numbers included as standard
Cons
- 3-user minimum on plans
- Call waiting not available
7. RingCentral – Top Collaborative VoIP App for iPhone
| Starting Price | $20/user/month |
|---|---|
| Free Version | ❌ |
| Trial Period | 14-day free trial |
| Key Features | Free video calling, Advanced internal messaging, AI noise reduction |
| iOS Requirements | iOS 14.0 or later |
| Apple App Store Rating | 4.8/5 |
On July 15th, the app was updated to allow users to delegate calls. This means you can now make, answer, and manage other people’s calls inside the RingCentral app as well as with a desktop phone.
Why We Picked It
I picked RingCentral as the best VoIP iPhone app for collaboration because its team messaging on iPhone is more advanced than that of other enterprise-focused providers, such as Vonage.
Features
- Free video calling — Video calling in the iPhone app is free and has no time limit. You can even share screens and use the collaborative whiteboard feature. There’s also an AI note-taking feature so that you can keep track of the discussion.
- Advanced internal messaging — RingCentral’s superior messaging platform offers a range of features to boost collaboration including task management, file-sharing, and a shared calendar.
- AI noise reduction — Another standout AI feature of RingCentral is its noise reduction, which is useful for receiving calls on the go, especially in busy locations.
RingCentral Pricing
RingCentral offers three pricing plans. In the table below, I’ve outlined each cost and explained what’s included in each.
| Plan | Core | Advanced | Ultra |
|---|---|---|---|
| Annual price | $20/user/month | $25/user/month | $35/user/month |
- Core — Unlimited domestic calling, IVR, visual voicemail, AI-powered video calls with up to 100 participants and meeting transcription, secure SSO (single sign-on), custom integrations plus Google and Microsoft, and API access.
- Advanced — Everything in Core, plus call recording, monitoring, and handling, 300+ CRM integrations including Salesforce and Hubspot, unlimited internet fax, cloud storage back-up, and custom roles and permissions.
- Ultra — Everything in Advanced, plus customizable analytics with 12 months of storage, custom reports, automated report subscriptions, real-time alerts, unlimited AI-powered video calls with up to 200 participants, and unlimited storage for files and recordings.
Who It’s Best For
The real standout feature of RingCentral is its free and unlimited video calling, which does not require a subscription. This makes it a great choice for teams wanting an app to support internal communication.
That said, it also offers a range of features that are ideal for external communication, such as auto-attendant, reporting, and analytics.
Pros
- Free video calling (no subscription required)
- Wide range of call management features
- Advanced internal messaging tools
- Handy video collaboration tools
- Built-in AI-based noise reduction
Cons
- Call reporting tools are limited
- Mixed feedback on customer support
8. Sonetel – Best Free Phone App for iPhone
| Starting Price | $9.95/user/month |
|---|---|
| Free Version | ✅ |
| Trial Period | Trial one number for free |
| Key Features | AI features, Group chats, Multi-channel communication |
| iOS Requirements | iOS 13.4 or later |
| Apple App Store Rating | 4/5 |
Why We Picked It
I picked Sonetel as the only provider in this list to offer a free VoIP plan with an iPhone app. While each number is charged at $1.89 per month, it also offers a free set of features, including voicemail and SMS to email, third-party integrations, and a range of AI features that are not seen on any otherfree plan on this list.
Features
- AI features — Sonetel assists with AI summaries of your meetings and blog articles from your website.
- Group chats — As well as one-to-one messaging, you can split your team into groups according to the relevant projects they are involved with.
- Multi-channel communication — With a Premium plan, you can handle incoming customer queries from your website’s chat widget or your Facebook page.
Sonetel Pricing
Sonetel offers phone numbers alone from $1.89 per month, but it also offers three pricing plans with additional features. Below, I’ve outlined the cost of each plan and what is included.
| Plan | Free | Premium | Business |
|---|---|---|---|
| Monthly price | $0 | $13.95/user/month | $39.95/user/month |
| Annual price | $0 | $9.95/user/month | $29.95/user/month |
- Free — Standard phone number pricing, voicemail and SMS to email, AI features, free trial of mobile app, and limited customer support.
- Premium — Everything in Free plan, plus 1 free number per user, free calls to 40+ countries, 40% discount on other calls, IVR, AI-suggested responses, chat widget, Facebook messaging, team chat, conference calling, and inclusive support.
- Business — Everything in Premium plan, plus discounted phone numbers, 5 free numbers per user, 50% discount on calls, and extended support.
Who It’s Best For
Sonetel is an excellent option for those looking for a singular VoIP number, perhaps those who want a separate business number for a side hustle business without a large monthly investment with all the unnecessary bells and whistles of a typical VoIP system.
That said, if you are interested in extra features, Sonetel’s Premium plan is still very cost-effective for teams with more advanced communication demands.
Pros
- Intuitive and easy to use
- Generous free plan
- Cheap paid plans with free phone numbers
- Free calling to 40+ countries
- Offers time-saving AI features
Cons
- The app can be buggy
- Daily spending limit for new users
9. Webex – Best VoIP App for iPhone for Security and Compliance
| Starting Price | $17/user/month |
|---|---|
| Free Version | ✅(video meetings) |
| Trial Period | 15-day free trial |
| Key Features | End-to-end encryption, Voice and video calls, Vidcast video messages |
| iOS Requirements | iOS 16.0 or later |
| Apple App Store Rating | 4.5/5 |
Why We Picked It
I selected Webex for its focus on security and compliance, as it offers an encrypted platform to host video meetings with an additional range of features to improve video interactivity.
Features
- End-to-end encryption — Webex gives you peace of mind that your video calls are secure with end-to-end encryption.
- Advanced video calls — The iPhone app includes Apple CarPlay support to join meetings from your car, and you can add captions to your meetings, translate 100+ languages in real-time, and use a shared whiteboard.
- Vidcast video message — If you can’t meet in real time, you can use Vidcast to send short videos to your team.
Pricing
Webex offers three pricing plans to cater to various business sizes and budgets. Below, I’ve outlined the cost of each plan and what is included.
| Plan | Webex Call | Webex Suite | Webex Enterprise |
|---|---|---|---|
| Monthly price | $17/user/month | $25/user/month | Custom |
| Annual price | $15.30/user/month | $22.50/user/month | Custom |
- Webex Call — Call other Webex users or any other phone number via Webex app, unlimited domestic calling, international calling billed per minute, auto-attendant, extensions, advanced noise cancellation, business phone number, and video messaging.
- Webex Suite — Everything in Webex Call, plus AI Assistant, meetings up to 24 hours long with 200 attendees, 10GB cloud storage for recording meetings, and closed captions.
- Webex Enterprise — Everything in Webex Suite, plus up to 1,000 attendees, local and unlimited cloud meeting recording, and FedRAMP-authorized security.
Who It’s Best For
Webex is perfect if you’re looking for a cost-effective, yet secure video calling iPhone app solution. You may have heard of Zoom meetings being hacked, so it may not always be a suitable platform for businesses in the healthcare or insurance fields.
All Webex plans are compliant with various security and privacy standards, including HIPAA, BAA, and FedRAMP. This is often reserved for Enterprise level calling plans, so it’s great to see this included on a cheaper plan.
Pros
- Voice calls and Webex video meetings in a single app
- Vidcast video messages
- Live translation into 100+ languages
- Background noise reduction
- Join video meetings from your car
Cons
- International calling is billed per minute, no inclusive international minutes
- Call recording is only available on the Enterprise plan
10. GoTo Connect – Best VoIP iPhone App for International Calls
| Starting Price | Available on request |
|---|---|
| Free Version | ❌ |
| Trial Period | Free demo |
| Key Features | Unlimited international calling to 50 countries, Advanced video meeting features, SMS autoresponders |
| iOS Requirements | iOS 13.4 or later |
| Apple App Store Rating | 4.8 / 5 |
Why We Picked It
GoTo Connect is a popular VoIP app that offers a comprehensive voice and video solution, customer engagement, and advanced call-handling capabilities. I specifically chose it for its international calling features.
Features
- Unlimited international calling to 50 countries — One of the standout features of GoTo Connect is its support of free international calling to 50 countries, including the UK, Australia, and China.
- Advanced video meeting features — GoTo offers interactive video meetings for up to 250 participants with breakout sessions, polls, and whiteboards for better interactivity.
- SMS autoresponders — Set up SMS auto-responses for when your customers contact you to boost customer engagement without you having to be glued to your phone.
As of its latest update, GoTo’s iPhone app now links with your calendar to automatically show a ‘Busy’ icon whenever you are in a meeting.
GoTo Pricing
GoTo Connect offers four pricing plans but does not openly advertise the pricing online, so I’ll avoid doing this, too. To find out how much each plan costs, you’ll have to get in touch directly, but I’ll outline what you get per plan below:
- Phone System — Unlimited users, video calling up to 250 participants, integrations include Salesforce and Miro, 80 SMS credits per month, and customizable auto attendants, call routing, and call queues.
- Customer Engagement — Centralized contacts and customer history, customized SMS outreach campaigns, shared multi-channel inbox, customer surveys, and social media integrations.
- Complete CX — Phone system plus contact center features, analytics, and reporting, multi-channel inbox, AI chat analysis, call listen, whisper, and barge.
- Contact Center — Offers functionality across voice calling, video calling, digital and social channels, tools for managing performance, flexible API access, and auto-dialer.
Who It’s Best For
Due to its support of international calling, I’d recommend GoTo for businesses dealing with customers and colleagues worldwide. Its mobile app offers many of the same features as the desktop version, which cannot be said of some competitors, making GoTo extra-suitable for businesses with remote workers who need a flexible, international communication platform.
Pros
- Best VoIP for international calling to 50+ countries
- Advanced video call features
- Unified view for customer conversations
- Mobile iPhone app supports many of the desktop features
Cons
- All plans have SMS limits
- Pricing isn’t transparent
The Top Apple iOS VoIP Apps Compared
Below is a quick overview of how the best VoIP iPhone apps compare:
| Providers | Ooma Office | Zoho Voice | Vonage | Nextiva | Phone.com | MightyCall | RingCentral | Sonetel | Webex Call | GoTo Connect |
|---|---|---|---|---|---|---|---|---|---|---|
| Best For | Comprehensive plans | CRM integration | Enterprise | User-friendliness | Budget-friendly | Distributed teams | Collaboration | Free plan + cheap call rates | Security and Compliance | International calling |
| Starting Price | $19.95/user/month | $34/user/month | $19.99/user/month | $23.95/user/month | $12.74/user/month | $15/user/month | $20/user/month | $9.95/user | $17/user/month | $27/user/month |
| Free Version | ✅ | ✅ | ❌ Free trial | ❌ Free trial | ❌ Free trial | ❌ Free trial | ❌ Free trial | ✅ | ✅ (Video meetings) | ❌ Free demo |
| iOS Requirements | 15.0 or later | 13.1 | 14.0 | 15.0 or later | 12.0 or later | 15.0 or later | 14.0 or later | 13.4 or later | 16.0 or later | 13.4 or later |
| Apple App Store Rating | 4.9 / 5 | 4.4 / 5 | 4.7 / 5 | 3.9 / 5 | None provided | 4 / 5 | 4.8 / 5 | 4 / 5 | 4.5 / 5 | 4.8 / 5 |
How We Review And Test VoIP Services
We base our recommendations on first-hand testing. All the VoIP products we feature, have been tested based on the following criteria:
- Features: We explore the platform’s general call and video conferencing capabilities and unique features like automation, call queuing, call recording, and IVR features.
- Integrations: We assess whether it offers integration support for popular business apps such as CRMs, project management platforms, helpdesk software, and others.
- Reliability: We test the call quality on offer with the VoIP platform, and we only include services that offer an uptime guarantee of close to 100%.
- Security and Compliance: We check whether the platform offers industry-standard encryption, access controls, compliance with regulations like GDPR, and firewalls.
- Numbers: We factor in whether the platform offers a variety of number options like local, toll-free, international, and vanity numbers.
- Ease of Use: We test the VoIP service on its available platforms to ensure we can give accurate insight into its usability.
- Value for Money: After our hands-on testing, we’re able to better analyze whether the price point is fair to offer insight into the feature-to-price value on offer.
- Reviews and Reputation: Beyond our hands-on testing, we explore third-party reviews to see if we need to investigate certain aspects of the VoIP service further. This combined allows us to offer a good overview of what our readers can expect from the platform.
How Does VoIP for iPhone Work?
Voice over Internet Protocol (VoIP) allows you to make phone calls using your broadband internet connection rather than a network of phone lines or cellular towers.
Many VoIP providers offer apps for mobile, allowing you to make and receive calls and access powerful call features anywhere, as long as you have an internet connection.
WiFi calling, on the other hand, uses the internet to connect your call via your cellular provider’s infrastructure. As VoIP calls don’t depend on your provider, they can be more reliable.
If your cell provider has a service outage, for example, you can still make and receive calls using a VoIP service as long as you have an internet connection, but you can’t use WiFi calling in this situation.
What are the Benefits of iPhone Mobile VoIP Apps?
Using a VoIP app on your iPhone means that you can access the same benefits and powerful features available from a browser or desktop-based VoIP service on the go. Here are the key benefits:
VoIP services usually offer significantly lower calling rates than a landline or cellular plan. This is especially true for international calling, where charges rack up quickly with traditional providers.
Pricing varies depending on the VoIP provider, but many offer affordable monthly service charges that include unlimited calls, meaning that costs are far more predictable.
Most VoIP services can also be set up in minutes and don’t require any expensive hardware, costly line installations, or maintenance.
VoIP services give you and your team the freedom to make and receive calls from anywhere with an internet connection across a variety of different devices, including your iPhone.
This offers a lot more flexibility about where and how you connect with your clients and teammates, and it means your work no longer needs to be tied to a particular location, such as an office.
For businesses that handle high call volumes, efficient call management tools are essential. VoIP providers offer features like:
- Call holding and forwarding
- Virtual receptionists
- Visual voicemail, and
- Customizable call assignment options
All of this improves efficiency and customer service, making your employees’ jobs easier while boosting customer satisfaction.
Many VoIP apps offer full communication suites that include video conferencing, fax, SMS messaging, and real-time chat in one package.
Many business-focused VoIP options include the ability to integrate with other apps your company already uses, such as calendar and contacts tools, and the best CRM apps, such as Salesforce.
Provided you have fast broadband, audio clarity is often higher with VoIP apps when compared to cellular calls. Many VoIP services also offer built-in features like audio codecs to improve audio clarity.
What’s the Best Free VoIP App for iPhone?
If you want to make free VoIP calls from your iPhone, I’d recommend Sonetel or Webex, but there are limits to any free plan. For example, Sonetel doesn’t give you a free number.
The best free VoIP app for iPhone for making phone calls is Google Voice, as it lets you call most numbers in the US and Canada for free, unlike other free apps like Skype or Viber.
However, there are significant limitations to free services, often making them a bad choice for businesses. Google Voice, for example, only supports one user and lacks basic call-handling features.
There’s also no automated response system or call recording. As such, I’d recommend making use of free trials and guarantees on offer with premium services instead.
How to Choose An iPhone VoIP Calling App
Mobile VoIP applications are increasingly popular. If you’re ready to make the switch, here are important factors to consider when choosing an iPhone VoIP app:
Pricing is a big factor since reducing costs is one of the main reasons to use a VoIP service over a traditional fixed-line phone system.
Even the pricier VoIP solutions are cheaper than traditional phone services, namely because they don’t require specialized hardware such as a Private Branch Exchange (PBX) system.
That said, you’ll still want to take into account the functionality on offer for the price and any hidden costs like international calling. You’ll also want to consider the cost to scale.
Call drops and choppy quality can happen with all phone systems, but VoIP gives you more control over this as it’s dependent on the speed and reliability of your internet connection.
As such, I’d suggest testing your internet speeds and trying a VoIP service’s free trial before you commit.
Most providers offer advanced audio codecs to improve audio quality— plus, some even offer AI-enhanced audio features such as background noise reduction and keyboard noise suppression.
You’ll want to look out for call-handling features such as holding, forwarding, queuing, and transferring.
Call monitoring features such as ‘barge’ and ‘whisper’ are handy for call center teams. Note what features you need to ensure that the provider and plan are a good fit for your needs.
If you make a lot of calls to other countries, VoIP apps can be a great inexpensive option. Here’s why:
- Some include unlimited international calling on their base plans
- Others offer bundles of international minutes you can add to your service
- Some will charge you per minute for calls to other countries
Companies depend on a variety of apps, from calendars and email to customer relationship management (CRM), marketing, and operations software.
Many VoIP providers offer integrations with popular apps such as Microsoft Teams, Google Workspace, or CRM apps like Salesforce. Whichever apps your business relies on, make sure your VoIP provider offers integrations for them.
Most VoIP systems can be deployed without installing any additional hardware, which means you can be up and running almost immediately.
Businesses with existing communications hardware, such as IP Phones, will want to make sure the VoIP provider they choose supports their current equipment.
Call analytics and reporting also vary in complexity and configuration, so I suggest taking advantage of any free trials, demos, and guarantees to test the app before committing.
Concerns about reliability are among the reasons businesses sometimes hesitate to switch to VoIP. As they depend on high-speed internet, if your internet drops, your phone system will too.
That said, most VoIP services offer 99.9% to 99.999% uptime. Beyond this, some providers can use your cellular data as a backup.
For organizations, especially those in regulated industries like healthcare, insurance, or government, VoIP security is essential. Cloud communications, like VoIP, do have some vulnerabilities.
You’ll want to ensure the VoIP app offers end-to-end encryption and that it meets relevant security standards such as HIPAA, BAA, and FedRAMP.
How to Make a VoIP Call on an iPhone
Making a call using a VoIP app on your iPhone is simple. In this guide, I'll walk you through how to make a call using the Ooma Office app for iPhone (the process is similar for all iOS VoIP apps):
Sign Up
Head to Ooma’s website and choose a plan. Simply enter some basic information about you and your company, choose a password, and pick a new business and toll-free number.
Log In on Your iPhone
Once you’ve set up your account, download the Ooma Office iOS app from the App Store, then log in using the business phone number and password you just created.
Dial a Number
Select the “Keypad” tab at the bottom of the screen, dial the number you want to call, and press the green button to start the call. You can also make calls from the Contacts and Recents tab, just like you would when using the built-in phone app on your iPhone.
Use the In-Call Options
During the call, you’ll see buttons to:
• Mute
• Show the keypad
• Change the audio output
• Put the call on hold
• Transfer the callThe icon with three dots gives access to additional options, including call recording and Call Flip, where you can move the call to another device such as your desk phone.
When you’re done, press the red button at the bottom of the screen to end the call.
