Best App for International Calls in 2026: 8 Apps Compared
- Our top pick for most readers is WhatsApp, because it covers the core needs of best app for international calls without a steep learning curve.
- If you want to pay nothing to start, Viber is the best free-first option in this list, with a usable free plan for everyday tasks.
- Rebtel is the best choice when you need more depth, since it adds stronger tools for regular or advanced use.
- Before you pay, compare free plan limits, monthly cost and the features you will actually use each week, not just the headline feature list.
Quick comparison
| Product | Ideal for | Price from | Free version | |
|---|---|---|---|---|
 WhatsApp | Free app-to-app calls worldwide | Free | Yes | Visit |
 Viber | App calls plus cheap number calls | Free | Yes | Visit |
 Rebtel | Low-cost calls to real numbers | See website | No | Visit |
 Google Voice | US-based international calling | Free | Yes | Visit |
 Yolla | Cheap pay-as-you-go calls | See website | No | Visit |
 Boss Revolution | Calls to many countries | See website | No | Visit |
 TextNow | Free US number with calling | Free | Yes | Visit |
 Dingtone | Second number and cheap calls | Free | Yes | Visit |
The best apps for international calls
We compared official feature pages, pricing, app store listings, privacy policies and public reviews to put this list together. The options below cover different budgets and skill levels, so use the comparison table to narrow it down, then read the full write-up for the two or three that match your needs.
Ideal for: Free app-to-app calls worldwide
For free app-to-app calls worldwide, WhatsApp is a strong place to start. WhatsApp is the simplest free international calling choice, since calls between WhatsApp users use the internet and cost nothing extra. It stands out for Free voice and video calls, and readers who want End-to-end encryption will find it a good fit.
The catch is Both people need the app, and Cannot call most landlines directly may also matter depending on your setup. Pricing is Free, with a free plan listed as Yes. Check the current plan details on the official site before you commit, and start with the free option when one is available.
That third strength, Huge global user base, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is free app-to-app calls worldwide, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Free voice and video calls
- End-to-end encryption
- Huge global user base
- Both people need the app
- Cannot call most landlines directly
Viber
Ideal for: App calls plus cheap number calls
Viber suits app calls plus cheap number calls. Viber combines free app-to-app calls with Viber Out credit for calling landlines and mobiles that do not use Viber. Its main draw is Free Viber-to-Viber calls, with Viber Out for real numbers as a useful bonus for everyday use.
On the downside, Viber Out rates vary by country can frustrate, and Smaller user base than WhatsApp is worth weighing before you sign up. The starting price is Free, and the free plan status is Yes. Try the free tier or trial first when you can, so you can judge fit without paying upfront.
That third strength, Group calls, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is app calls plus cheap number calls, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Free Viber-to-Viber calls
- Viber Out for real numbers
- Group calls
- Viber Out rates vary by country
- Smaller user base than WhatsApp
Rebtel
Ideal for: Low-cost calls to real numbers
If low-cost calls to real numbers describes you, Rebtel deserves a close look. Rebtel focuses on cheap calls to real phone numbers, using local connections so the person you call needs no app or internet. We liked Competitive rates to many countries most, followed by No internet needed for receiver.
It is not perfect: Quality depends on local networks is a real limitation, and App design is basic may affect some users. Starting price is See website, free plan is No. We suggest comparing that against what you will actually use each week, rather than paying for features you may never open.
That third strength, Simple top-ups, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is low-cost calls to real numbers, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Competitive rates to many countries
- No internet needed for receiver
- Simple top-ups
- Quality depends on local networks
- App design is basic
Google Voice
Ideal for: US-based international calling
Google Voice is built with us-based international calling in mind. Google Voice gives US users a second number with low international rates and voicemail, and it works across web and mobile. The headline strength is Free US calls, and Low international rates adds to the appeal.
Watch out for International features vary, plus Needs a Google account and US number setup if that matters to your workflow. The price starts at Free, with free plan Yes. That makes it sensible to test the basics first and upgrade only when a limit starts to get in your way.
That third strength, Works on web and mobile, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is us-based international calling, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Free US calls
- Low international rates
- Works on web and mobile
- International features vary
- Needs a Google account and US number setup
Yolla
Ideal for: Cheap pay-as-you-go calls
Among the options here, Yolla stands out for cheap pay-as-you-go calls. Yolla sells call credit for international calls to real numbers, which suits occasional callers who do not want a subscription. It offers Pay-as-you-go credit, plus No monthly fee for people who want more room to grow.
The honest weakness is Rates vary by destination, and No free app-to-app calls is a second point to check. Pricing starts at See website, free plan No. For most readers, the free or trial version answers the key question: does this fit how you already work?
That third strength, Calls to mobiles and landlines, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is cheap pay-as-you-go calls, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Pay-as-you-go credit
- No monthly fee
- Calls to mobiles and landlines
- Rates vary by destination
- No free app-to-app calls
Boss Revolution
Ideal for: Calls to many countries
Readers in the calls to many countries group should shortlist Boss Revolution. Boss Revolution has long served international callers with app and calling-card options for mobiles and landlines abroad. The clearest benefit is Wide country coverage, and Mobile top-ups helps it hold up over time.
A fair warning: Interface is dated, and Rates change by destination can add friction. It starts at See website, with free plan No. Compare the plan limits with your actual use, and keep an eye on renewal terms before you pay for a full year.
That third strength, Calling cards and app, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is calls to many countries, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Wide country coverage
- Mobile top-ups
- Calling cards and app
- Interface is dated
- Rates change by destination
TextNow
Ideal for: Free US number with calling
TextNow appeals most to free us number with calling. TextNow gives users a free US phone number for calls and texts over Wi-Fi, with paid options for international destinations. It does Free US number well, and Free calls over Wi-Fi makes it easier to stick with.
The main drawback is International rates apply outside free coverage, with Ads on free plan close behind. Starting price is Free, free plan Yes. If those limits do not bother you, it remains a solid choice for its target audience.
That third strength, Texting included, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is free us number with calling, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Free US number
- Free calls over Wi-Fi
- Texting included
- International rates apply outside free coverage
- Ads on free plan
Dingtone
Ideal for: Second number and cheap calls
For anyone in the second number and cheap calls category, Dingtone is worth comparing first. Dingtone offers a second phone number plus low-cost international calls over Wi-Fi, which suits travelers and dual-number users. It brings Free second number together with Low-cost international calls in one place.
Keep in mind Free credits need earning or ads, and also Call quality varies by network. Pricing is Free, free plan Yes. Shortlist it if the strengths match your top need, and skip it if the drawback touches something you use every day.
That third strength, Wi-Fi calling, is easy to overlook, but it is often what decides whether a tool stays in daily use. If your main need is second number and cheap calls, weigh that strength against the drawbacks above and against the next option in this list, since a slightly simpler tool can be the better pick when it covers your core task well.
- Free second number
- Low-cost international calls
- Wi-Fi calling
- Free credits need earning or ads
- Call quality varies by network
How we picked these
We started with the topic itself and kept only products that exist and work today and truly fit it, dropping anything that was discontinued, region-locked for most US readers, or only loosely related. For each remaining option we checked its official feature page and pricing page, looked at app store listings where relevant, and read privacy policies and public reviews for signs of problems such as hidden limits or weak support. We then compared free plans, starting prices, core features and honest drawbacks, and we mixed well-known leaders with strong smaller options. We did not claim hands-on testing that did not happen. Where a price could not be verified from the vendor site, we wrote See website rather than guessing, so you can check the current figure before you buy.
How to pick an international calling app
Start with the job you need done, not the longest feature list. For international calls, check whether the other person needs the same app, whether you can call real phone numbers, and the per-minute rate to your country. Write down the two or three tasks you will do most often, then check each shortlisted option against those tasks only. A tool that handles your core task well is usually a better buy than a larger tool with many features you will never open, especially when the larger tool costs more each month.
Next, test the free plan or trial with a real task from your own work, not just a sample project. Import or create something typical, try it on the device you use most, and note where you get stuck. Pay attention to export options, limits on free use, and how easy it is to cancel, since those details matter more over months of use than a first-day impression.
Finally, compare total cost over a year, including add-ons, extra users or storage, and any price rise after an introductory period. Check support options and privacy terms, and keep a backup of your work in a standard format where possible. If two options tie, pick the one with the clearer pricing and the simpler path to leave, so you are not locked in by your own files.
Frequently asked questions
What is the best best app for international calls?
For most readers, WhatsApp is our top pick, because it covers the core features well and is easy to start with. That said, the best choice depends on your budget and how often you will use it, so compare the top two or three options in the table above before you decide.
Is there a free best app for international calls?
Yes, Viber offers a usable free plan, and several other options here include a free tier or trial. Free plans usually limit advanced features, storage or exports, so test the free version with a real task to see whether those limits affect you.
How do I choose the right best app for international calls for beginners?
Start with the task you need most, pick the simplest option that covers it, and use the free plan or trial first. Avoid paying for advanced features until you know you need them, and check that you can export your work if you switch later.
Can I switch later if I pick the wrong best app for international calls?
In most cases yes, but switching takes time, so check export options before you commit. Keep copies of your work in standard formats where possible, and avoid building everything around a feature that only one tool offers.
What is the best free international calling app?
WhatsApp is the best free option when both people have the app, since calls over the internet cost nothing beyond data. For calling a real phone number abroad, Rebtel and Yolla are better, because they charge low per-minute rates without needing the other person to install anything.