Voice-over-internet protocol (VoIP) technology brings mobile-friendly features that make it a great fit for iPhone users, giving you the ability to manage business calls from your device. The best VoIP apps for iPhone let you keep work and personal calls separate, forward calls as needed, and collaborate with your team through shared phone number access.
After testing multiple VoIP apps for office communication, I have selected my top recommended VoIP iPhone apps that offer the ideal blend of flexibility, features, and ease of use.
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1
Nextiva
Employees per Company Size
Micro (0-49), Small (50-249), Medium (250-999), Large (1,000-4,999), Enterprise (5,000+)
Any Company Size
Any Company Size
Features
24/7 Customer Support, Coaching Tools , Online Account Management, and more
2
800.com
Employees per Company Size
Micro (0-49), Small (50-249), Medium (250-999), Large (1,000-4,999), Enterprise (5,000+)
Small (50-249 Employees), Medium (250-999 Employees)
Small, Medium
Features
Call Management/Monitoring, Call Routing, Contact Center, and more
The Fit Small Business editorial process adheres to strict standards to ensure that our best answers are grounded in accuracy, clarity, authority, objectivity, and accessibility.
Drawing on over four years of experience evaluating cloud-based phone solutions, I’ve identified industry-leading phone systems and popular choices among business professionals, thoroughly assessing each through in-depth reviews.
Review my full methodology to learn more about my evaluation process and criteria.
Office Technology Staff Writer at Fit Small Business
Best VoIP apps for iPhone compared
Nextiva: Best for client-facing professionals
Pros
- Combines team collaboration and customer communication channels
- Includes reputation management tools to monitor and respond to reviews
- Easy-to-use call flow builder for call routing
Cons
- Lacks text messaging on the base plan
- Charges an above-industry fee for its phone plan
- Limits unlimited SMS to its most expensive plan
My expert opinion
Nextiva stands out as my top VoIP app for iPhone because of its mobile-friendly customer engagement platform. It’s a strong fit for remote teams that need access to voice, video, email, SMS, and social media platforms to connect with customers. Integrating multiple communication channels into a single conversation hub gives you complete visibility into customer interactions.
With the NextivaONE app, you can quickly launch meetings, make calls, and message customers on the go. It also seamlessly integrates customer engagement tools with internal team collaboration, making it easy to involve other departments when needed.
That said, based on my experience, the all-in-one setup may feel a bit heavy for solo users or smaller teams. If you’re just looking for a reliable voice-first VoIP app for iPhone, Ooma is a simpler option with over 50 built-in calling features.
What users think
Apple App Store rating: 4.1 out of 5 based on 5,875 reviews
Users find Nextiva simple and effective, with an easy setup process and helpful customer support that resolves issues quickly. They appreciate its rich feature set, especially the visual call tree editor, and note that the app works smoothly on iOS.
While the experience is generally positive, some mention occasional login problems and minor app glitches like missed calls. Overall, the platform is praised for its reliability, user-friendly design, and strong support.
- Core: Includes unlimited domestic calling, SMS/MMS, IVR, HD video meetings for up to 100 participants, full call management, single sign-on, shared voicemail, real-time transcription, and AI-generated call summaries.
- Engage: Expands on the Core plan with customer-facing SMS, live chat, an AI chatbot, advanced reporting tools, toll-free minutes, Microsoft Teams integration, and enhanced automation features.
- Power Suite: Delivers the full experience with built-in sales and support call center tools, skill-based call routing, a unified interface, supervisor dashboards, and complete access to analytics and meeting recordings.
- Team chat: With Nextiva’s secure messaging, you can chat with colleagues instantly. Communicate in real time, screen share, see your message history, and hop into video calls with one click.
- Do not disturb (DND): Activating this feature automatically ignores all incoming calls. Callers will either hear a busy signal or be rerouted to your voicemail.
- Auto-attendant: Callers will hear an instant automated greeting that allows them to choose the person, extension, or department they wish to reach. Calls are managed without the need for a human receptionist.
Nextiva’s mobile app allows you to manage team contacts, check user availability, and initiate a call or chat directly from the contact card. (Source: Nextiva)
RingCentral: Best call-heavy teams
Pros
- Works with CarPlay and Siri
- Uses artificial intelligence (AI) to transcribe calls and take notes
- Team chat and video meetings in the base plan
Cons
- Limited SMS credits per month
- Pricier than most competitors
- Overwhelming feature set for basic needs
Read Our RingCentral review
My expert opinion
RingCentral is my top pick if you’re looking for advanced call features right from your mobile device. It combines desk phone capabilities with modern tools, such as multilevel auto-attendants, call flip, answering rules, and custom call routing. Manage everything from caller ID to automated replies and business hours, so you can stay responsive wherever you work. The best part is that it also works with Apple’s Siri and CarPlay, making hands-free calling possible.
As an industry-leading VoIP phone system, what truly sets RingCentral apart is its built-in AI technology. With a smart assistant, you can create real-time call notes, draft messages, and summarize video meetings. It also includes AI-powered noise cancellation, so your calls and meetings come through clearly without background distractions.
On the downside, I’ve found that its robust feature set might feel like overkill for startups or small teams. If you just need a basic phone and text system, Grasshopper is a more lightweight alternative.
What users think
Apple App Store rating: 4.5 out of 5 based on 65,298 reviews
Users appreciate RingCentral for its seamless experience across multiple platforms, especially the iOS and Windows apps that make it easy to call, text, and manage communication on the go. They value how the platform centralizes phone, SMS, and fax under one app. Users also highlight the convenience of adding new users and provisioning desk phones and virtual fax tools through the desktop app. However, some express frustration over the daily text messaging limit.
- Core: Offers unlimited domestic calling, SMS/MMS, IVR, HD video meetings for up to 100 participants, call management, single sign-on, shared voicemail, real-time transcription, and AI-generated call summaries.
- Advanced: Enhances the Core plan with features like auto call recording, advanced monitoring, support for multiple locations, unlimited internet fax, customer relationship management (CRM) integrations, six months of analytics storage, cloud backup, custom roles, and AI tools for live note-taking and action item capture.
- Ultra: Expands on Advanced by adding customizable analytics, a 12-month reporting history, 200-participant video meetings, device-level analytics, unlimited storage for files and recordings, and AI capabilities for drafting messages.
- Call screening: Manage incoming calls by choosing to accept, decline, block, or send them to voicemail based on the caller ID.
- Call-to-video: Seamlessly upgrade a voice call to a video meeting or share your screen during a one-on-one conversation without disruption.
- Call forwarding: Redirect incoming calls to another office, home, or mobile number so you never miss important calls, no matter where you are.
RingCentral combines voice, AI-powered call summaries, and meeting follow-ups. (Source: RingCentral)
Zoom Phone: Best for Zoom Meeting users
Pros
- Provides both metered and unlimited calling options to suit different budgets
- Supports unlimited regional calling in 48 countries
- Every plan includes access to the full feature set
Cons
- No free trial available for testing the service
- Lacks deep integration with popular business tools
- Toll-free numbers come with additional charges
Read our Zoom Phone review
My expert opinion
Zoom Phone is a great VoIP phone app for iPhone users who already rely on Zoom Meetings and now want to add a business phone system without bringing in a separate VoIP provider. Since it’s built into the Zoom ecosystem, you can easily upgrade a voice call to a Zoom Meeting with just a few taps, without requiring any extra apps or logins.
I also appreciate that Zoom Phone offers flexible pricing options. You can start with a metered plan for light usage, upgrade to unlimited local calling, or select a plan that includes unlimited calls to one international country. This setup makes it easy to scale your phone system as your team grows, without incurring unnecessary minutes.
Zoom’s main limitation is its lack of deep integration with customer-facing tools. If you’re looking for a softphone that works seamlessly with your CRM or business apps, I recommend checking out RingCentral instead. It connects with hundreds of platforms to support more advanced customer workflows.
What users think
Apple App Store rating: 4.6 out of 5 based on 2.9 million reviews
Users describe Zoom Phone as a powerful and versatile solution with strong support during system transitions and a user-friendly interface. They like that it works consistently across multiple platforms, including Windows, Mac, Chromebook, Android, and iOS.
The mobile apps are especially appreciated for their reliability and frequent updates, which help resolve past issues, such as iOS-specific bugs. Overall, Zoom Phone receives praise for its seamless integration of voice, video, and chat, as well as its consistent performance across various devices.
- Metered: A cost-effective plan with pay-as-you-go domestic calling, best for businesses with light to moderate call volume.
- Regional Unlimited: Offers unlimited domestic calling within one country and assigns each user a direct dial number, great for locally focused teams.
- Global Select: Provides unlimited domestic calling across 40+ countries and territories, with local direct dial numbers for every user.
All plans include core call management features, such as call routing, unlimited auto-attendants, call recording, and Zoom Meetings integration.
- Elevate to meeting: Instantly upgrade a phone call to a full Zoom Meeting without requiring participants to take any extra steps to join.
- Shared line groups: Let team members share access to a group phone number and voicemail, ensuring no call goes unanswered.
- Time tracking: Assign client codes to calls to simplify billing and track call duration for more accurate invoicing.
Zoom Phone’s iPhone app separates calls, messages, and voicemail, making it easy to manage business communications on the go. (Source: Zoom Phone)
GoTo Connect: Best for remote sales teams
Pros
- Includes unlimited calling to more than 50 countries
- Provides 1,000 toll-free minutes per account, shared among users
- Offers a wide range of advanced call handling features
Cons
- Customer support response times can be slow
- Does not offer international phone numbers
- Subscription pricing is not clearly listed on the website
Read our GoTo Connect review
My expert opinion
GoTo Connect stands out with its all-in-one Customer Experience (CX) suite, designed to give your team every tool they need to support, engage, and retain customers. With omnichannel capabilities such as phone, email, web chat, SMS, and WhatsApp, your agents can manage every interaction from a single shared inbox. I’ve found this valuable for customer-facing teams that need to respond quickly and collaborate easily, even when switching between channels or handling high volumes of inquiries.
What really makes GoTo Connect’s CX tools shine is the level of control and insight it gives you behind the scenes. From a single admin interface, you can manage call flows, chat queues, AI-powered assistants, and campaign messaging without needing to juggle separate systems. The GoPilot virtual assistant expedites setup, offering real-time guidance and self-service automation that reduces IT support needs.
Unfortunately, GoTo Connect’s user experience can feel clunky compared to more modern cloud-based communication tools. Nextiva offers a more intuitive alternative, with a customer engagement platform that supports multiple channels like voice, video, SMS, and chat. If a streamlined interface and advanced multi-channel tools are a priority, Nextiva may be the better fit.
What users think
Apple App Store rating: 4.8 out of 5 based on 118,909 reviews
Users appreciate GoTo Connect’s mobile support, especially on iOS, where the app allows them to handle high call volumes efficiently. They enjoy features like real-time team status visibility and excellent call quality. However, some users wish for improved functionality during incoming calls when the phone is locked, noting delays in accessing options such as mute, hold, and transfer.
- Phone System: Covers essential business communication features like toll-free minutes, auto attendants, voicemail, video meetings, and integrations
- Connect CX: Adds advanced customer experience tools such as AI messaging, web chat, and multi-channel support
- Contact Center: Expands further with enterprise-level capabilities, including intelligent routing, agent dashboards, auto-dialers, and real-time coaching, for high-volume support teams.
- Admin GoPilot: Streamlines phone system management by offering built-in AI-powered assistance, giving admins quick access to resources, smart navigation, and self-serve tools within the GoTo Connect interface.
- Virtual fax: Send digital faxes to a traditional fax machine or email inbox, and receive incoming faxes as file attachments directly in your email.
- Conference call bridging: Host phone or video conferences with up to 20 participants, using a dedicated link or by dialing participants and merging them into the call.
GoTo Connect supports HD calling and team messaging, complete with an organized inbox for assigned and unassigned conversations. (Source: GoTo Connect)
Ooma: Best for solopreneurs with dual lines
Pros
- Base plan comes with over 50 built-in phone features
- Includes 500 toll-free calling minutes each month at no extra cost
- Supports unlimited calling to the US, Canada, Mexico, and Puerto Rico
Cons
- Requires a one-time $49.95 activation fee
- Ooma Essentials users can’t make calls directly from the desktop app
- Interface may not be as user-friendly as other VoIP platforms
My expert opinion
Ooma is a top pick for iPhone users seeking a simple and affordable VoIP app that functions like a professional office phone system. The Ooma Office mobile app helps you easily separate business and personal calls, clearly showing when an incoming call is from your Ooma number and displaying key caller details.
It also includes helpful features like call swapping, voicemail prioritization, and robocall blocking. I especially like how the app uses iOS-specific tools to boost efficiency. You can assign icons to contacts based on their line type, use a widget for one-tap access to voicemail and call tools, and minimize screens to multitask during active calls.
That said, Ooma falls short when it comes to software integration. If your workflow depends on syncing your phone system with CRMs or marketing tools like Zendesk and Salesforce, RingCentral is a better fit, with support for over 300 business platforms.
What users think
Apple App Store rating: 4.9 out of 5 based on 7,173 reviews
Users find Ooma’s web interface and mobile apps straightforward and easy to use, both for admins and end users. Sole proprietors appreciate the flexibility to manage calls and messages while on the go, thanks to the Ooma Office mobile app. The platform’s features support daily business needs, making it easy to stay connected with clients from anywhere.
- Essentials: Includes 50+ core business features like a virtual receptionist, ring groups, digital fax, and support for the mobile app.
- Pro: Builds on Essentials with desktop and video conferencing apps, text messaging, call recording, voicemail transcriptions, and dynamic caller ID.
- Pro Plus: Offers the most advanced features, including CRM integration, call analytics, call queuing, hot desking, “Find Me, Follow Me,” and Ooma Meetings recording, ideal for larger or remote teams.
- Dynamic caller ID: Use custom star codes to switch outbound caller IDs, ideal for assistants or operators calling on behalf of different team members.
- Caller info match: Displays a preview window with details about the caller using their name or number, with the option to link searches to sites like Google, Facebook, or LinkedIn.
- Advanced call logs: Offers detailed call tracking, showing whether calls were answered, missed, sent to voicemail, or disconnected for better visibility and reporting.
Ooma’s iPhone app supports voicemail transcription, image messaging, and PDF file sharing, all within a single business text thread. (Source: Ooma)
Grasshopper: Best for text-focused managers
Pros
- Supports unlimited users for a fixed monthly cost
- Offers a dedicated phone plan for solopreneurs
- Includes the same number of VoIP features across all plans
Cons
- Has no chat or video capabilities
- Doesn’t integrate with third-party apps
- Lacks call recording
Read our Grasshopper review
My expert opinion
Grasshopper is a great fit for businesses that rely heavily on text messaging to connect with customers. Unlike many providers that cap SMS usage, Grasshopper offers unlimited texting, so you can send updates and quick replies without worrying about hitting a limit. To unlock this feature, a one-time $19 fee applies for US numbers to meet Campaign Registry requirements.
Enhance your messaging with instant response tools, which automatically reply to missed calls from first-time callers, and customize texts with images or links. However, Grasshopper doesn’t support video calls or internal team chat. If you need a more collaborative solution, I recommend Nextiva, which combines calling, messaging, video meetings, and customer engagement tools in one unified platform.
What users think
Apple App Store rating: 4.8 out of 44,518 reviews
Grasshopper earns praise for its easy-to-use texting and voicemail features, especially the ability to manage multiple text threads and separate voicemail lines. Users like how it supports employee extensions and simplifies communication with clients or patients. However, some mention frustration with having to log in by email each time just to view call details.
- True Solo: Ideal for solo entrepreneurs, this plan provides one phone number, one extension, and essential features like business texting, call forwarding, voicemail, and app-based calling.
- Solo Plus: Designed for growing teams, this plan supports unlimited users and three extensions on a single phone number, along with extras like call transfers, reporting tools, and simultaneous call handling.
- Small Business: Built for full-scale operations, this plan includes four phone numbers, unlimited extensions and users, and access to the complete feature set, such as call recording, advanced call controls, and detailed reporting.
- Incoming call control: Customize how and when calls reach you by setting up call flows, screening callers, blocking numbers, ringing multiple devices, and creating business hours schedules.
- Wi-Fi calling: Make and receive calls over a Wi-Fi connection, ideal for areas with weak cell service, while saving on mobile minutes and data.
- Simultaneous call handling: Reduce missed calls by forwarding incoming calls to multiple phone numbers at once, ensuring coverage even during high call volumes.
Grasshopper offers a unified mobile inbox for calls, voicemails, and messages, along with easy access to call settings and contact preferences. (Source: Grasshopper)
Talkroute: Best for beginners
Pros
- Multiple users for a fixed monthly pricing
- Costs just $5 monthly for each additional user
- Highly customizable call settings
Cons
- Relies on Zapier for integrations
- No auto-attendant in the Basic plan
- Lacks team chat
Read our Talkroute review
My expert opinion
Talkroute is the best VoIP option for iOS users new to cloud-based calling, offering a simple and easy-to-use calling app. It’s designed with beginners in mind, offering a clean interface that makes it easy to switch between virtual phone numbers and manage calls while on the go.
Plans start at $19 per month and include essentials like unlimited calling, text messaging, video meetings, and basic features such as call routing, voicemail boxes, custom greetings, and virtual numbers. While it doesn’t offer AI tools, I’ve found its simplicity a plus for teams that want a no-frills solution that just works.
One downside is the lack of support for international calling, which may be limiting if your business works across borders. If global communication is important, Ooma is a better fit, as it supports unlimited calling to the US, Canada, Mexico, and Puerto Rico, along with affordable international rates.
What users think
Apple App Store rating: 4.6 out of 5 based on 254 reviews
Users say Talkroute significantly improves call management and helps their business sound more professional, especially with its easy-to-use platform and responsive customer support. The softphone apps stood out as a key feature, allowing teams to stay connected and handle calls from anywhere. While users appreciate the system overall, some wish for added features like group texting and fax support.
- Basic: Perfect for solopreneurs, this entry-level plan includes one virtual phone number, one user, one voicemail box, and core features like unlimited calling, texting, video meetings, and call forwarding.
- Plus: A great fit for small teams, this tier offers two phone numbers, three voicemail boxes, single-digit extensions, live call transfers, and a basic call menu to organize incoming calls.
- Pro: Ideal for growing businesses, the Pro plan supports up to 10 users and includes three phone numbers, 10 voicemail boxes, multi-digit extensions, submenus, call recording, reporting tools, and access to Talkroute’s Voice Studio.
- Enterprise: Designed for larger teams, this plan supports 20 or more users, provides at least 10 phone numbers, over 20 mailboxes, and includes a dedicated account manager for personalized support.
Every plan is scalable, and you can add more users for just $5 each, making it easy to expand your phone system as your business grows.
- Hours of operation: Define the specific days and times your phone system is active, with the option to set multiple time blocks and custom call routing rules for after-hours.
- Text-to-email: Get your business text messages delivered to your email, complete with the sender’s name, phone number, and message content.
- Submenus: Create additional layers within your main call menu to offer more detailed options, such as different departments or language selections.
Talkroute’s iOS app features a full dialer, text messaging, and built-in video meetings. (Source: Talkroute)
How I evaluated the best VoIP apps for iPhone
To help you choose the right VoIP app for your iPhone, I tested and scored each provider using a detailed rubric. The goal was to find services that are not only budget-friendly but also offer solid features, reliable support, and a smooth mobile experience.
20% of Overall Score
I gave the highest scores to softphone apps with clear, affordable monthly plans, especially those under $30 per user. Free trials and flexible billing options also helped certain providers stand out.
25% of Overall Score
All providers were evaluated for core VoIP functions, including voicemail, call forwarding, caller ID, and unlimited calling. Extra points went to those offering mobile and desktop sync, text messaging, and voicemail-to-email capabilities.
20% of Overall Score
I looked for standout tools like call recording, auto-attendant, IVR, and CRM integrations. Providers earned bonus points for mobile-first perks like eSIM support and in-app analytics.
10% of Overall Score
Each app was tested for how easy it is to install, set up, and use on iOS. I gave higher scores to platforms with intuitive interfaces and beginner-friendly onboarding.
10% of Overall Score
Support scores were based on availability and quality. I prioritized providers that offer 24/7 live support, setup assistance, and robust help centers.
15% of Overall Score
This category reflects my hands-on testing, research, and industry experience. I factored in overall reliability, feature depth, and value for money from a small business perspective.
*Percentages of overall score
How to choose the right VoIP app for iPhone
Finding the best VoIP apps for iPhone means looking beyond just call quality. You’ll want a provider that matches your workflow, budget, and communication needs, especially if your business relies on mobility. Here are the key factors to consider when choosing the right iOS-friendly VoIP solution.
Cost
Monthly pricing for iPhone VoIP apps ranges from $10 to $75 per user, depending on the plan and features. Some providers offer metered or à la carte options, which are ideal for low call volumes or budget-conscious teams. Reviewing prepaid and pay-as-you-go models can help you avoid paying for more than you need.
Core features
At a minimum, the best VoIP app should include unlimited domestic calling, a softphone interface, voicemail, and basic call handling. Top-rated providers also deliver HD call quality, virtual numbers, and mobile apps. If you need more than the basics, premium plans unlock features like call recording, analytics, video conferencing, and call monitoring.
Integrations
Unified communication platforms often sync with third-party apps so you can manage everything from one interface. If your team uses tools like Salesforce, HubSpot, or Google Workspace, make sure your VoIP provider integrates with them. This cuts down on app-switching and improves productivity.
Ease of use
For small teams or solo users, simplicity is key. Look for iPhone apps that are easy to install, intuitive to navigate, and quick to configure. Free trials and live demos can help you get a feel for how the system works before committing.
Customer support
Strong support is essential, especially if you don’t have in-house tech staff. Prioritize providers that offer 24/7 live chat, email, and phone support. A searchable help center or knowledge base is also helpful for troubleshooting on your own.
Security
VoIP runs on the internet, which means you need strong safeguards in place against cybersecurity threats. Choose a provider that offers enterprise-grade security features like end-to-end encryption, call logging, fraud detection, and secure data storage to protect your communications and customer information.
Frequently asked questions (FAQs)
The best VoIP app for iPhone depends on your business needs, including your budget, desired features, and intended usage. RingCentral is great for all-in-one communication, Zoom Phone works well for teams already using Zoom, and Ooma Office is ideal for small businesses looking for a simple, affordable solution.
Call quality can vary based on your network and location, but RingCentral is widely recognized for delivering some of the best call quality in the VoIP space. It uses HD voice technology and global data centers to ensure clear, reliable audio for both mobile and desktop users.
Yes, however, only a few VoIP apps offer entirely free services, such as Google Voice. However, it’s worth noting that free VoIP apps are intended for basic and low-volume use, so included features are often limited to unlimited local calls, voicemail, and call forwarding.
Most VoIP services work seamlessly with business phone systems on iPhones, as long as they offer a dedicated iOS app. If you want a VoIP provider that truly supports mobile-first use, RingCentral is a strong choice. It offers a full-featured iOS app, as well as integrations with Siri and Apple CarPlay, for seamless, hands-free calling.
Bottom line
Using a VoIP app on your iPhone makes it easy to manage business calls over the internet without relying on a separate device. Choosing a provider with a strong iOS app ensures you can handle calls efficiently and stay connected even when you’re away from your desk.
Nextiva is our top pick for iPhone users looking for a mobile-friendly customer engagement platform. It’s a great fit for remote teams that need access to voice, video, email, and SMS in one unified conversation hub. Contact the Nextiva sales team today for a free demo.