Best VoIP app for business: Top 11 options in 2025

There’s a reason a growing number of businesses use Voice over Internet Protocol (VoIP) to handle calling and texting. Between cost-effectiveness, scalability, and features that go beyond phone calls, VoIP apps are a clear winner for keeping up with clients.

The real question is which provider is best for your business? We did the heavy lifting so you can make an informed decision.

This guide breaks down everything you need to know about the 11 best VoIP apps, including their prices, features, and limitations. We also explain how to choose the VoIP provider that’s the best fit for your team so you can scale your business with fewer growing pains.

1. OpenPhone for growing businesses 
2. Google Voice for Google Workspace users
3. Aircall for international numbers
4. Dialpad for contact centers
5. Grasshopper for phone number extensions
6. GoTo Connect for making calls to international customers
7. Ooma for overhead paging
8. Vonage for video conferencing
9. RingCentral for deskphone rentals
10. Nextiva for brands that use Microsoft products
11. 8×8 for online payments

What exactly is a VoIP app?

A VoIP app is a software application that lets you call and text customers via an internet connection. Your VoIP provider will give you a unique business phone number you can use from your computer and/or mobile device.

How to choose the best VoIP app for business

Investing in a VoIP system modernizes how you communicate with customers.

That said, not all platforms are built the same.

Here are six things to look for while narrowing down your shortlist:

1. Multiple ways to streamline communication. The best VoIP apps offer features that make everyday communication faster and easier. The best providers integrate with apps like Zapier and Make to automate workflows — for example, automatically logging call activity under the relevant contact in your CRM, so you don’t have to waste time entering the same information in multiple places. They also offer texting automations like snippets (pre-written message templates) so you can respond to clients and team members quickly when they ask common questions.
2. Access to cost-effective plans. You want to get the most value from your business phone system — not just spend less. That means choosing a provider that includes features your team needs, without paying extra for the basics. The right plan helps your team stay connected and enables you to stay within your budget as your business grows.
3. Compatibility with multiple devices. The best VoIP apps for iPhone, Android, and your computer are compatible with all your devices. Whether you’re working from a laptop or taking calls on your smartphone, you’ll have the flexibility to work wherever you want.
4. Ways to keep your personal number private. Using a personal phone number for business isn’t a good idea (unless you don’t mind receiving client calls outside of business hours). Some VoIP systems let you have two numbers on one phone, so you can separate work from personal calls.
5. Options to scale as your team grows. VoIP solutions should charge the same price per user, regardless of your team’s size. It should also be easy to add new numbers as you grow. Remember: you don’t need physical hardware to get a virtual phone number.
6. No limits on essential features. Your VoIP software should offer all the basic features — including unlimited calling to US and Canadian numbers, SMS/MMS, and call recording on the base plan. There shouldn’t be arbitrary limits requiring you to upgrade, like ‘limited’ storage and pooled toll-free minutes.

Comparing the 11 best VoIP apps

Here’s how the 11 best VoIP apps compare:

Keep reading for the breakdown of each app’s pros, cons, and key features.

1. OpenPhone: Best for growing businesses

Pros

• Unlimited calls to Canada and the US
• Shared numbers
• AI action items, call tags, call summaries, and instant transcripts
• Quick context in a single-view inbox
• AI agent, Sona
• 7,000+ third-party app integrations via Zapier and Make

Cons

• No verification through two-factor authentication*

*Nearly all virtual phone numbers share this problem. For safety reasons, companies like Facebook, Uber, and Google rarely let you authenticate accounts through a virtual phone number.

OpenPhone is compatible with

• iOS
• Android
• Web browsers
• Windows
• Mac

OpenPhone is a VoIP phone system focused on startups, small businesses, and individuals. Our intuitive platform makes it easy to manage conversations and build better relationships with your customers.

With OpenPhone, you can make unlimited VoIP calls and send SMS and MMS messages to anyone in the US or Canada. You can also collaborate with your team using shared phone numbers, which helps everyone on your team split responsibility for incoming calls and texts.

OpenPhone was designed to grow alongside your business. You can put unlimited users on any plan — you’re not forced to upgrade to a higher-tier plan due to your team being large. You also get one free local or toll-free number for every new member you add to your plan. Since these numbers work on almost any device, you (and your team) can work from anywhere with an internet connection.

OpenPhone makes automating and integrating with your tech stack simple and straightforward. You can connect with thousands of apps with Make and Zapier to automate workflows. For example, you can send automatic appointment reminders and push customer data to your CRM, like HubSpot or Salesforce.

Not always available to answer the phone? OpenPhone’s AI agent, Sona, can step in when you can’t take a call. It answers calls, records important details, takes messages, and answers frequently asked questions — so potential customers aren’t left waiting (or calling the next company on their list).

You can set up auto-replies to automatically text customers back, so they always get a response from your business. You can also schedule texts to send during business hours in your customer’s time zone, helping you stay TCPA compliant.

The cherry on top is our hassle-free platform: it takes just 15 minutes to sign up for an account. 

Want to see why thousands of users have rated OpenPhone the #1 small business platform? You can confirm OpenPhone is a fit for your team by signing up for a free seven-day trial. If you have an existing US, Canadian, or North American toll-free number, you can easily port in your number when you’ve confirmed OpenPhone works well for your team. 

Key features of OpenPhone

• Text messages (SMS and MMS) to the US and Canada
• Send scheduled messages, snippets, and auto-replies to streamline texting
• Local or toll-free numbers
• VoIP call forwarding
• Call recording
• IVR (auto-attendant)
• Shared phone numbers and group messaging
• VoIP AI call transcripts and summaries
• Voicemail transcriptions

OpenPhone pricing

OpenPhone’s pricing offers three different plans that scale with your business.

• Starter: $15 per user per month for unlimited calls and texts in the US and Canada, desktop and mobile apps ( Google Play and the App Store), internal threads and mentions, auto-replies, snippets, and more
• Business: $23 per user per month for analytics, call transfers, AI call transcriptions, HubSpot and Salesforce integrations, and more
• Scale: $35 per user per month for priority live chat and email ticket support, AI call tags, dedicated onboarding support, and conditional call routing (coming soon)

2. Google Voice: Best for Google Workspace users

Pros

• Free plan for personal use
• Integrations with Google Workspace apps

Cons

• No toll-free numbers
• No auto-replies
• No third-party integrations

Google Voice is compatible with:

• iOS
• Android
• Web browsers
  

You’re probably familiar with Google Voice: it’s a simple VoIP phone system offering plans for personal and business use. However, the free personal plan supports just one phone number and one user. If you plan on reaching customers effectively, you’ll need Google Voice for business.

There’s still not much to get excited about with Google Voice for business. The base plan comes with voicemail transcriptions, texts in the US and Canada, and integrations with other Google tools (like Calendar and Meet). Unfortunately, it’s missing the features modern businesses need. You won’t have access to toll-free numbers, auto-replies, or external integrations like Zapier or Slack.

Because Google Voice is such a large platform, it’s often slow to innovate. Case in point: the last major update to Google Voice was in 2016. You’ll be waiting for a while to see any new or exciting features.

Pricing is another major limitation. Google Voice’s business plans look inexpensive at first, but it’s a different story once you include the Google Workspace subscription. Unless you’re already a subscriber, you’ll pay at least $7 extra per user per month. This means the cheapest price is $17 per user per month, which adds up quickly for a growing team.

Key features of Google Voice

• Unlimited domestic calls and text messages
• Support for desk phones (requires upgrade)
• Voicemail transcriptions
• Google Workspace integrations
• Ring groups (requires upgrade)

3. Aircall: Best for international numbers

Pros

• International numbers in 100+ countries
• Unlimited international calls (requires upgrade)

Cons

• User minimums on every plan
• Expensive add-ons
• Limited SMS/MMS features like auto-replies and scheduled texts

Aircall is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac

Aircall offers cloud phone software designed for businesses with a global presence. You can purchase local numbers in more than 100 countries, and if you upgrade to the highest tier, you’ll unlock unlimited international calls.

But if you’re not expanding into overseas markets, Aircall might not make sense for your business.

For example:

• Aircall’s pricing plans require you to have three or more users, which means the base plan actually costs $90 per month.
• Analytics+ is a pricey add-on that provides features like charts and heatmaps, and it costs $15 per license per month.
• International texting outside the US, Canada, the UK, Australia, Germany, and France isn’t supported. You’re also limited to 4,000 outbound messages per user per month. 
• MMS is restricted to the US, Australia, and Canada, meaning you won’t be able to send photos, videos, and other files elsewhere.

Aircall’s high upfront costs are a dealbreaker for most small businesses. Even with its high price, it lacks essential features you’ll need to grow.

Learn more about the platform and Aircall alternatives here.

Key features of Aircall

• WiFi calls
• SMS and MMS support
• IVR
• Call recording

Aircall pricing

Aircall’s pricing lets you pick from three different plans:

• Essentials (three-license minimum): $30 per license per month for unlimited calls within the US and Canada, call recording, click-to-dial, SMS, and IVR
• Professional (three-license minimum): $50 per license per month for mandatory call tagging, call monitoring, advanced analytics, and a Salesforce integration
• Custom (25-license minimum): Custom quote for unlimited international calls, custom onboarding, and access to API developer support

4. Dialpad: Best for contact centers

Pros

• Unlimited office locations
• Speech coaching

Cons

• User minimums for Pro and Enterprise plans
• International texts require an upgrade
• SMS is limited to 250 messages per user per month

Dialpad is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac

Among the best VoIP apps, Dialpad is geared toward contact centers with features like conference calls and unlimited office locations. They also offer call monitoring tools like speech coaching, which can help reps communicate better with customers.

Dialpad’s prices look competitive at first, but extra costs can creep in. For instance, toll-free numbers cost $15 per number per month, and toll-free calls cost $0.02 per minute. And you also can’t send international texts unless you upgrade to the Pro plan.

The most frustrating aspect? Limited VoIP texting per user. No matter how much you upgrade, you can only send 250 messages per user per month (which is around eight texts per day). After that, you’ll need to pay $0.008 per outbound SMS.

Key features of Dialpad

• IVR
• Call recording
• Sync and integrate with Google Workspace 
• Analytics
• Voicemail transcriptions

Dialpad pricing

Dialpad’s pricing lets you choose from three different plans:

• Standard: $15 per user per month for team messaging, visual voicemail, and texting (SMS and MMS)
• Pro: $25 per user per month for 24/7 live agent support, CRM integrations, and international SMS
• Enterprise: Custom quote for unlimited ring groups, dial-by-extension, and unlimited office locations

5. Grasshopper: Best for phone number extensions

Pros

• Access to phone number extensions
• Unlimited users (requires upgrade)

Cons

• Expensive additional numbers
• Call recording requires an upgrade
• No third-party integrations

Grasshopper is compatible with:

• iOS
• Android
• Windows
• Mac

Grasshopper was designed to serve micro businesses like solopreneurs. Each plan comes with unlimited business calling and texting, as well as phone number extensions, so you can forward callers to a number of your choice.

Where Grasshopper falls short is with scaling your business. The True Solo plan only allows for a single user, phone number, and extension. Want to buy an additional phone number? You’ll need to upgrade to a more expensive plan first. And even if you do upgrade, additional numbers cost $9 per number per month — much higher than comparable VoIP platforms.

You’ll never get several features with Grasshopper, like call snippets, third-party integrations, and AI call transcriptions. This may be an obstacle as your business grows and you need additional headroom for business phone features.

Key features of Grasshopper

• Free calls and texts in the continental US (not Hawaii or Alaska)
• Call forwarding 
• Voicemail transcriptions
• Custom greetings
• Call recording (requires upgrade)

Grasshopper pricing

Grasshopper’s pricing lets you choose from three different plans:

• True Solo: $14 per month for one user, one number, and one extension
• Solo Plus: $25 per month for unlimited users, one number, three extensions, and call recordings
• Small Business: $55 per month for unlimited users, four numbers, and unlimited extensions

6. GoTo Connect: Best for making calls to international customers

Pros

• International calling to 50+ countries
• Supports calls, texts, and video meetings

Cons

• Limited toll-free minutes are shared across your account
• No texting from toll-free numbers
• Shared inbox requires an upgrade
• No free trial

GoTo Connect is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac

GoTo Connect offers calling, texting, and video meetings in one platform, so your team can manage different types of communication in a single place. Its base plan also includes calling to 50+ countries, which is helpful if you work with international customers or team members.

However, there are a few GoTo Connect drawbacks to keep in mind. Also, toll-free minutes are shared across your whole account, which can be limiting for teams with high call volumes due to the 1,000-minute monthly cap. And you can’t send texts from toll-free numbers, making it harder to use one number for both calls and messages.

If your team wants to use shared inboxes to see and reply to messages from the same customers, you’ll need to upgrade to the Connect CX plan.

For small teams that rely on texting or want more flexibility with toll-free numbers, these limitations can make GoTo Connect the wrong choice for your business.

Key features of GoTo Connect

• Toll-free numbers
• Attendant console (requires upgrade)
• Custom surveys (requires upgrade)
• Intelligent call routing (requires upgrade)
• Basic integrations

GoTo Connect pricing

GoTo Connect’s pricing isn’t publicly listed — you’ll need to contact its sales team to get a quote and sign up. Here’s what you can expect to get with each plan:

• Connect Phone System: Free calls to 50 countries, unlimited auto attendants and call routing, video meetings with up to 250 participants, and a mobile and desktop app
• Connect CX: Shared inbox, enhanced reporting and analytics, attendant console, Zendesk integration
• Connect Contact Center: AI chat analysis, supervisor analytics, agent dashboard, intelligent call routing, and auto dialer

7. Ooma: Best for overhead paging

Pros

• Unlimited calling in the US, Canada, Mexico, and Puerto Rico
• Desk phone support

Cons

• 500 minutes of toll-free inbound calls per month
• Call recording requires an upgrade
• Texting requires an upgrade

Ooma is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac

Like Google Voice, Ooma is an older VoIP system serving businesses with physical offices. Each plan comes with intercom support, overhead paging, analog fax machine support, and similar features. A few features serve modern businesses, including a virtual receptionist, call recording, and voice-to-text transcriptions. 

To get basic phone features like text messaging, call recording, and voicemail transcriptions, you’ll need the Pro plan, which costs $24.95 per user per month.

Even if you do upgrade for texting, be prepared for its limitations. You only get 250 free messages per user per month on the Pro plan and 1,000 free messages per user per month on the Pro Plus plan. Every additional message costs $0.0095.

Still think Ooma could work for your business? Keep in mind features like scheduled messages and making phone calls from the desktop VoIP app are only available on the Pro plan. Many comparable VoIP solutions, like OpenPhone, offer these features on their basic plan at a more competitive price.

To summarize: Ooma’s base plan isn’t enough for most small businesses. If you’re looking for a VoIP app that can scale alongside your business, you may want to look for an Ooma alternative.

Key features of Ooma

• Unlimited calling in the US, Canada, Mexico, and Puerto Rico
• Call forwarding
• One virtual fax number
• Voicemail
• Call logs

Ooma pricing

Ooma’s pricing offers three different plans:

• Essentials: $19.95 per user per month for ring groups, virtual receptionists, analog fax machine support, and the mobile app
• Pro: $24.95 per user per month for video conferencing (up to 25 participants), SMS support, the desktop app (with calling enabled), and caller ID
• Pro Plus: $29.95 per user per month for call queuing, hot desking, and the HubSpot integration

8. Vonage: Best for video conferencing

Pros

• APIs available
• Unlimited domestic calling in the US and Canada

Cons

• No free trial
• Voicemail transcriptions require an upgrade
• Team messaging requires an upgrade

Vonage is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac

Vonage is one of the earliest companies to offer VoIP phone systems to small businesses. It offers the tried-and-true essential features you need in a business phone system, like voice calls, mobile and desktop apps, and SMS/MMS support. If you’re looking for more ways to improve communications, it has customizable APIs, so you can build a solution of your own.

But while Vonage has lots of bells and whistles, many of its best features come with hidden fees:

• Automatic call recording: $49.99 per month
• Toll-free numbers: $39.99 per month (only available for US customers)
• Conference bridge: $15.99 per month

The costs can pile up quickly with Vonage’s already expensive base plan. If you’re a smaller business, you might want to look for something more affordable and scalable.

Key features of Vonage

• Unlimited calling and SMS messages to US and Canadian numbers
• APIs for business communications
• Mobile and desktop apps
• Unlimited team messaging (requires upgrade)
• On-demand call recording (only on the top-tier plan)

Vonage pricing

Vonage charges customers according to the number of users on their team. The more users you have, the less you pay. The fewer users you have, the more you pay.

Here’s what annual prices look like for teams of one to four users:

• Mobile: $19.99 per user per month for SMS and MMS, voicemail, and unlimited domestic calling in the US and Canada
• Premium: $29.99 per user per month for team messaging, single sign-on, and third-party integrations
• Advanced: $39.99 per user per month for voicemail transcriptions, call groups, and on-demand call recording (15 hours on-demand per month)

Keep in mind Vonage doesn’t offer a free trial, preventing you from testing the platform to ensure it’s the right fit for your business before making a financial investment. 

9. RingCentral: Best for desk phone rentals

Pros

• Desk phone rentals 
• Shared call appearance

Cons

• Texting is limited to 25 texts per month
• Toll-free calling is limited to 100 minutes
• Limited storage space for conversation history

RingCentral is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac

RingCentral is a leading VoIP service that offers standard and advanced features to enterprise users. If you own a brick-and-mortar business and aren’t ready to give up your landline, you can rent a VoIP-compatible desk phone directly from RingCentral.

While you could argue RingCentral is a ‘feature-rich’ platform, it limits the features on its cheaper plans to force you to upgrade. For example, the base plan only comes with:

• 100 pooled toll-free minutes per month
• 25 texts per user per month
• Limited storage for team messaging and call recordings

You’ll have to upgrade to the Ultra plan — nearly twice the cost of the base plan — for 10,000 pooled toll-free minutes, 200 texts per user per month, and unlimited storage for call recordings and files. This is still nowhere near enough for growing businesses.

If you want more room to grow, try a RingCentral alternative.

Key features of RingCentral

• Unlimited calling within the US and Canada
• Unlimited internet fax (requires upgrade)
• Integrations for Slack and Microsoft Teams
• VoIP apps for PC, Mac, Android, iOS, and the web
• Incoming caller ID

RingCentral pricing

RingCentral provides three different pricing plans you can choose from:

• Core: $20 per user per month for unlimited calling in the US and Canada, shared voicemail, IVR, and API access
• Advanced: $25 per user per month for automatic call recording, unlimited internet fax, call monitoring, and a Salesforce integration
• Ultra: $35 per user per month for device analytics and alerts, unlimited storage for files and recordings, and HD video meetings

10. Nextiva: Best for brands that use Microsoft products

Pros

• Integrates with Microsoft and Oracle platforms
• Remote device management tools

Cons

• Limited toll-free minutes
• SMS requires an upgrade
• Voice calls requires an upgrade

Nextiva is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac
  

Nextiva has grown to be one of the most widely used VoIP systems for contact centers and enterprise companies. Its Microsoft and Oracle integrations can help larger businesses keep their tech stacks connected.

But despite this, Nextiva lags behind many of its competitors. It also locks must-have features behind pricey paywalls.

Take a look:

• Voice calls, SMS, and MMS require the Corel plan ($30 per user per month).
• Essential features like call recording and voicemail transcription require an upgrade, making them too expensive for small businesses and pushing them to Nextiva alternatives.
• The base plan doesn’t support toll-free numbers

If you’re an enterprise user and don’t mind spending more on a VoIP phone system, Nextiva may be a fit. But if you’re looking for a low-cost VoIP system that’s easy to scale, it isn’t the best option.

Key features of Nextiva

• Unlimited voice calls in the US, Canada, and Puerto Rico (requires upgrade)
• Auto-attendant (requires upgrade)
• Caller ID (requires upgrade)
• Mobile and desktop apps for SMS, video, and voice (requires upgrade)
• Internet fax (requires upgrade)

Nextiva pricing

Nextiva’s pricing lets you pick from four different plans:

• Digital: $20 per user per month for messaging apps, competitive monitoring, social media channels, and review management
• Core: $30 per user per month for inbound and outbound voice calls, business texting, video meetings, and call routing
• Engage: $40 per user per month for a toll-free number and minutes, advanced reporting, web chat, and a Microsoft Teams integration
• Power Suite: $60 per user per month for the inbound sales and service call center, texting, skills-based routing, and a supervisor dashboard

11. 8×8: Best for online payments

Pros

• Secure payment processing 
• Video calls

Cons

• No clear call recording policy
• Pricing isn’t listed online
• Outdated support docs

8×8 is compatible with:

• iOS
• Android
• Web browsers
• Windows
• Mac

8×8 is a cloud-based phone system founded in 2000. If your team handles a high volume of inbound calls, 8×8 offers features like interactive voice response (IVR) and advanced call routing options to help direct callers to the right rep or department.

Its Contact Center plan lets your business receive customer payments online during live calls. Customers enter their payment information directly, without needing to share sensitive details with reps.

While the platform covers a lot of ground, there are a few cons to keep in mind. For example, 8×8 doesn’t clearly say how long it stores call recordings. If your team depends on these recordings for training or documentation purposes, you might need to look for an 8×8 alternative.

It can also be hard to know what’s included in each plan. 8×8 doesn’t publish its pricing online, and some of its support documentation is outdated.

Key features of 8×8 

• Call recording
• SMS
• IVR
• Integrations
• Omnichannel routing

8×8 pricing 

8×8’s pricing isn’t listed publicly — you’ll need to contact its sales team to get a quote. Here’s what you can expect to get with each plan:

• Contact Center: Omnichannel routing, agent workspace, AI-enabled self-service, and secure payment processing
• CX Beyond the Contact Center: Advanced queue management, conversational intelligence, team lead analytics, and global coverage
• Communications APIs: High-volume SMS, voice, video, authentication, and fraud prevention
• Unified Communications: Integrations, receptionist console, and system analytics

The benefits of using a VoIP phone service

Switching to a VoIP phone service provider isn’t just about making calls over the internet. It’s about giving your team more flexibility, cutting unnecessary costs, and avoiding the hassle of outdated phone setups. Here’s what sets VoIP apart:

• No bulky hardware: Phone solutions like on-premises PBX systems often require desk phones, installation, and IT support. VoIP runs on the devices your team already uses — no maintenance or tech team needed to get started.
• Lower upfront costs: Landline systems come with expensive hardware and setup fees. Most VoIP providers offer simple monthly pricing with no installation costs, so you can start calling without draining your budget.
• Fewer devices to manage: When you add a new team member or someone changes roles or locations, there’s no need to rewire or replace equipment. Just log in from any device and pick up where you left off, which is ideal for growing teams.
• Use any device, anywhere: VoIP lets your team make and receive calls from laptops, phones, or tablets. Whether you’re in the office or on the go, you’re always connected.
• No phone lines needed: All calls run through your existing internet connection. That means fewer vendors to manage, no landline bills, and one less thing to maintain.

OpenPhone: The best VoIP app for small businesses

Small businesses need a VoIP service that won’t break the bank but still offers business-specific features. That’s where OpenPhone comes in.

With OpenPhone, you’ll have access to features that help you follow up with every lead, capture and retain communication histories, and enable integrations with existing tools in your tech stack. Plus, you can save time with features like call summaries and transcriptions, call tags, and an AI agent. We are a reliable and collaborative communication platform offering everything needed to get work done together.

Curious to see how we can transform your business?

Sign up for OpenPhone’s seven-day free trial today.

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