· 13 min read
The Best VoIP Apps and Software in 2026, From Free to Business-Grade
Picking the best VoIP app starts with an honest question about who's paying and why. A retiree who wants a free second number, a two-person agency that needs a shared business line, and a tinkerer who wants wholesale per-minute rates through a SIP trunk are all searching for "VoIP app," and they should end up with completely different software. Most roundups rank all of these against each other on one list, which is how a solo user ends up trialing per-seat business software and a small business ends up on an ad-supported free app that was never built for them.
This list is split into three segments instead: free and personal, prosumer and small business, and full-control SIP setups. Within each segment the comparisons are fair, because the products are actually competing for the same user. And one absence to note up front: Skype, the app that made VoIP a household word, was retired by Microsoft in May 2025, so any list still recommending it is running on autopilot.
How we picked the best VoIP apps
Three filters shaped the list. First, every entry has to dial real phone numbers, because that's what separates a VoIP app from a chat app with a call button; pure app-to-app services like WhatsApp are covered in the roundup of apps to call from your computer instead. Second, each app has to be a defensible pick within its segment rather than merely famous: a business phone system isn't "better" than a free app if you're one person, so we compare like with like. Third, the pricing model has to be legible before signup. Services that hide rates behind a sales call or a trial wall didn't make it, because a VoIP bill you can't predict is a VoIP bill you'll eventually resent.
What actually differentiates VoIP apps
Marketing pages talk about HD codecs and crystal-clear audio, but codec quality is close to a solved problem: every serious app uses the same handful of modern codecs, and on a decent connection they all sound fine. What separates good VoIP apps from frustrating ones is how they behave when the network is bad. Jitter buffering, packet-loss concealment, and graceful recovery when you switch from WiFi to cellular are where cheap apps fall apart mid-sentence, and you can't read any of that off a spec sheet, which is why free trials matter more here than in most software categories. The mechanics of how a voice call becomes packets are covered in the guide to how internet calling works.
The second real differentiator is number availability. A VoIP number is a real phone number in a specific country, and which countries an app can issue numbers in varies enormously. Google Voice issues US numbers only; business platforms typically cover North America and a list of supported countries; SIP providers collectively cover almost everywhere but vary one by one. If you need a number in a specific country, check that before comparing anything else, because it eliminates most of the field instantly.
The third is everything wrapped around the call: voicemail transcription, call recording, shared inboxes, texting, and integrations. For personal use these are nice extras. For a business they're the actual product, because the calling itself is a commodity.
Free and personal VoIP apps
1. Google Voice
For US users, Google Voice is still the default answer and deserves to be. You get a real US number, free calls to US and Canadian numbers from the browser or mobile apps, voicemail with transcription, and texting, all inbound and outbound, all free for personal use. It's spartan and Google barely promotes it, but it has outlived fifteen years of Google product shutdowns and remains the most complete free VoIP product anywhere.
Where it wins: genuinely free calling to real US and Canadian numbers, a real inbound number of your own, voicemail transcription, works in a browser tab with nothing installed.
Where it hurts: signup requires a US presence and an existing US number for verification, some services can't text short codes to it, and numbers left unused for six months get reclaimed.
Pricing: free for personal US use; international calls metered at low per-minute rates.
Best for: anyone in the US who wants a free second line that behaves like a real phone.
2. TextNow
TextNow gives you a free US or Canadian number with unlimited calling and texting to the US and Canada, supported by ads. That's a real offer with no per-minute meter, which makes it the closest thing to Google Voice for people who can't get Google Voice, and it's popular as a phone replacement on WiFi-only devices. The trade is that you're the audience: ads sit in the app, and the free number gets reclaimed if you go quiet for a stretch.
Where it wins: free unlimited US and Canada calling with a real number, easier signup than Google Voice, works as a full phone substitute on a tablet or an old phone with no SIM.
Where it hurts: ad-supported with in-app upsells, number recycling on inactivity, and some businesses' verification systems reject VoIP numbers like TextNow's.
Pricing: free with ads; a modest subscription removes ads and adds number retention.
Best for: free unlimited North American calling when Google Voice signup isn't an option.
Prosumer and small business VoIP apps
3. OpenPhone
OpenPhone is what a business phone looks like when it's designed like modern software: shared numbers your whole team can text and call from, threaded conversations that mix calls, texts, and notes, and an interface that feels closer to a messaging app than a phone system. It has become the default recommendation for startups and small teams because the onboarding takes minutes rather than a sales cycle.
Where it wins: shared numbers with team inboxes, excellent texting, fast self-serve setup, clean apps on every platform.
Where it hurts: per-seat pricing means it's overkill for one person with light usage, international calling is metered on top, and it's US and Canada centric for numbers.
Pricing: per-seat subscription with tiers; no free tier beyond a trial.
Best for: small teams that want one shared business number with texting done properly.
4. Dialpad
Dialpad is the AI-forward pick in this segment: live transcription during calls, automatic summaries and action items afterward, and coaching features that grew out of its call-center products. Underneath that it's a full business phone system with solid call quality and video meetings included. The AI features are genuinely useful rather than decorative, especially the searchable transcripts, but you're paying for a platform, and small teams that just want a shared line may find OpenPhone simpler.
Where it wins: best-in-class transcription and call summaries, a real phone system underneath, scales from two seats to a call center.
Where it hurts: more product than a small team needs, per-seat pricing climbs with the useful tiers, and the interface carries the weight of its enterprise features.
Pricing: per-seat subscription, with AI and analytics gated by tier.
Best for: teams that live on the phone and want every call transcribed and searchable.
5. Zoom Phone
Zoom Phone bolts a complete business phone system onto the meeting client most offices already run: real numbers, extensions, IVR menus, recording, and admin controls, with call quality riding on Zoom's infrastructure. Its pitch is organizational rather than individual, since nobody has to learn a new app and IT manages one vendor for meetings and calls.
Where it wins: lives inside an app your team already uses, proper admin and compliance features, strong reliability.
Where it hurts: no free path at all, per-user pricing with regional calling plans that meter beyond covered countries, and it's plainly aimed at organizations rather than individuals.
Pricing: per-seat subscription with metered and regional unlimited tiers.
Best for: companies already on Zoom that want to retire a separate phone system.
Full control: a softphone plus a SIP trunk
6. Zoiper or Linphone with a SIP provider
The DIY option, and for the right user the best one. Zoiper and Linphone are softphones: apps that speak SIP, the open protocol underneath most of the VoIP industry. Neither provides calling on its own; you connect them to a SIP trunk provider of your choice, which sells you a number and per-minute rates close to wholesale. The result is the cheapest heavy-volume calling on this list and total independence, since you can switch providers, run several accounts at once, or plug the same account into desk-phone hardware. The cost is that nothing holds your hand: you'll enter SIP credentials, maybe adjust codec settings, and occasionally debug NAT issues. If you'd rather skip installation entirely for casual calls, a browser dialer covered in the computer calling guide gets you talking faster.
Where it wins: lowest per-minute rates for volume, numbers available in far more countries than any single app, zero lock-in at any layer.
Where it hurts: setup assumes technical comfort, quality depends on the provider you chose, and support means forums rather than a help desk.
Pricing: the apps are free or cheap one-time purchases; the SIP provider bills per minute plus a small monthly fee per number.
Best for: technical users, heavy international callers, and anyone needing a number in a country the big apps don't serve.
VoIP software for Windows and Mac
People searching for "VoIP software" usually mean the desktop side of the same products: something that runs on a Windows PC or a Mac and makes phone calls through a headset. Every pick above has a desktop answer, and they fall into three kinds.
The zero-install kind is a browser tab. Google Voice runs fully in Chrome or any modern browser with nothing downloaded, and web dialers do the same for one-off calls to any number, as covered in the guide to calling from your browser. If you refuse to install software on a work machine, this is the tier.
The business kind is a native desktop app. OpenPhone, Dialpad, and Zoom Phone all ship Windows and macOS apps that keep ringing in the background, show a shared inbox, and put transcripts next to the call. For a team, this is the product; the mobile app is the accessory.
The softphone kind is the classic VoIP program: a small app that speaks SIP and connects to a provider you choose. Zoiper and Linphone run on Windows, macOS, and Linux, and MicroSIP is a free, open-source Windows softphone so light it fits on a USB stick, which makes it the traditional answer to "free VoIP software for Windows." None of these do anything on their own; the calling comes from the SIP account you plug in. Whichever kind you pick, use a USB or Bluetooth headset rather than the laptop's built-in mic and speakers, because the echo from open speakers is the single most common reason desktop VoIP sounds bad. The full comparison of desktop options, including WhatsApp and Teams, lives in the guide to apps to call from your computer.
VoIP apps for Android
Android no longer ships a built-in SIP client, so any VoIP calling on Android goes through an app, and the choice again tracks the segment. Google Voice and TextNow are the free personal picks on Android as on iPhone, with one Android-specific advantage: TextNow can be set as the default phone app, so a SIM-free Android device dials and rings like a regular phone. OpenPhone, Dialpad, and Zoom Phone all have solid Android apps that mirror the desktop. Linphone and Zoiper cover the SIP route.
The Android-specific problem is battery management. A SIP softphone has to keep a registration alive to receive calls, and Android's aggressive background limits, especially on Samsung, Xiaomi, and OnePlus phones, will silently kill that connection so inbound calls never ring. If you use a SIP app on Android, exclude it from battery optimization in the app's settings and expect to check it after major OS updates. Apps built on push notifications, which includes Google Voice, TextNow, and all the business platforms, don't have this problem, which is a real reason to prefer them on Android unless the SIP economics matter to you. For WiFi-only Android devices where the point is calling without a carrier at all, the WiFi calling roundup covers that angle.
The best VoIP apps at a glance
| App | Segment | Free tier | Real inbound number | Platforms | Setup effort | Best for |
|---|---|---|---|---|---|---|
| Google Voice | Personal | Yes, generous (US only) | Yes, US | Browser, Android, iPhone | Low | Free US second line |
| TextNow | Personal | Yes, ad-supported | Yes, US/Canada | Android, iPhone, web | Low | Free unlimited North America calls |
| OpenPhone | Small business | Trial only | Yes | Windows, Mac, Android, iPhone, web | Low | Shared team number with texting |
| Dialpad | Small business | Trial only | Yes | Windows, Mac, Android, iPhone, web | Medium | Transcription-heavy teams |
| Zoom Phone | Business | No | Yes | Windows, Mac, Android, iPhone | Medium | Companies already on Zoom |
| Zoiper/Linphone/MicroSIP + SIP | Full control | Depends on provider | Yes, many countries | Windows, Mac, Linux, Android, iPhone | High | Heavy callers, unusual countries |
How to actually choose
Start with the segment, because crossing segments is almost always a mistake. If you're one person calling within North America, Google Voice or TextNow ends the search free. If a team shares the line, the choice is between OpenPhone's simplicity, Dialpad's transcription, and Zoom Phone's bundling, and the deciding factor is usually which ecosystem you're already in. If your calling is mostly abroad, the calculus changes enough that the dedicated comparison of international calling apps is the better guide, and if what you actually need is calling over WiFi without a carrier, that's a different question with its own answer in the WiFi calling roundup.
Frequently asked questions
What is the best free VoIP app? Google Voice, if you're in the US: free calls to real US and Canadian numbers, a real inbound number, and voicemail transcription. TextNow is the fallback when Google Voice signup isn't possible. Outside North America, no app offers unlimited free calls to real numbers, and a SIP provider with cheap per-minute rates is the honest answer.
What is the best VoIP software for Windows? For free calling to real numbers, Google Voice in a browser tab, if you're in the US. For a business line, the OpenPhone or Dialpad desktop app. For a SIP account, MicroSIP is the lightest free Windows softphone and Zoiper the most polished; both need a SIP provider to supply the number and minutes.
What's the difference between a VoIP app and a softphone? A softphone is a VoIP app that speaks the open SIP protocol and works with any provider, like an email client works with any mail server. Google Voice, TextNow, and the business platforms are VoIP apps tied to one service. Softphones give you control and wholesale rates; tied apps give you a working phone in two minutes.
Do VoIP apps work without WiFi? Yes, any data connection works, including mobile data. A voice call uses very little bandwidth, so even a weak LTE signal is usually enough. What kills calls isn't slow data but unstable data, which is why the same app can be flawless at home and rough on hotel WiFi.
Can I use a VoIP number for verification texts? Sometimes. Many services detect VoIP numbers and reject them for SMS verification, and this varies by provider: Google Voice numbers pass more checks than free TextNow numbers, and dedicated SIP numbers vary case by case. If verification is your main goal, no VoIP app can promise it will work everywhere.
Is a VoIP app cheaper than a phone plan? For a second line, dramatically, since the free options cost nothing and paid ones cost less than any carrier line. As a full phone replacement it depends on your calling volume and whether you're always near data; most people run VoIP alongside a minimal carrier plan rather than instead of one.
What happened to Skype? Microsoft retired it in May 2025, ending both the app and its pay-per-minute calling credit. For twenty years it was the reflex answer to this exact question, which is why so many stale lists still feature it. Its consumer niche split between Google Voice, Viber, and SIP providers, depending on what you used it for.
Most people should pick their segment first and the app second: Google Voice or TextNow for a free personal line, OpenPhone or Dialpad for a team, a SIP softphone when you need control or coverage the mainstream apps don't offer.