Best App for International Calls in 2026: 9 Apps Compared

WhatsApp is the simplest answer for most international calls, because the person you want to call probably already has it. Voice and video calls over Wi-Fi or mobile data are free, with no per-minute charge, and the app works on iOS, Android, and desktop. For family, friends, and many work contacts, that covers the whole need.

The limit is clear: WhatsApp cannot call a landline, and it cannot call a mobile number that is not on WhatsApp. If your relative has only a basic phone, or lives where internet is unreliable, a paid calling app will be more useful. Call quality also depends on your internet connection, so a weak Wi-Fi signal will affect any app-to-app call.

We pick WhatsApp first when both sides have smartphones and internet. It is free, familiar, and encrypted, and it avoids the rate-checking that paid services require. Keep a paid backup app installed for the times when WhatsApp cannot reach the other person.

FaceTime is the best free option inside the Apple ecosystem. It is built into iPhone, iPad, and Mac, so there is no app to install for most Apple users, and calls over Wi-Fi or data are free. Audio quality is strong, video is clear, and the interface is simple enough for relatives who do not want another app.

The drawback is the Apple-only limit. If the other person uses Android, FaceTime will not help, and you will need WhatsApp, Telegram, or another cross-platform app. FaceTime also cannot call a traditional landline, so it does not solve the same problem as Rebtel or Viber Out.

Use FaceTime when your family or team is mostly on Apple devices. For mixed-device groups, WhatsApp is the better default, because it works across iOS and Android without a platform wall.

Google Voice gives US residents a free second number for calls, texts, and voicemail, with free calls to US and Canadian numbers. Calls to other countries carry a per-minute charge that varies by destination, with rates starting around $0.01 per minute for some destinations in recent comparisons. That makes it a strong tool for US-based users who call abroad occasionally.

The main limit is availability. Personal Google Voice is a US service, and signup needs a Google account and an eligible US mobile number for verification. International texting is not supported in the same way as domestic texting, so check the current support page if texting matters to you. Business plans through Google Workspace start at $10 per user per month in recent tables, with higher tiers adding international calling to selected countries.

We recommend Google Voice for US users who want one number for domestic and international calling, plus voicemail transcription and spam filtering. If you live outside the US, look at WhatsApp for free calls and Rebtel or Viber Out for paid calls to real numbers.

Viber covers both calling jobs in one app. Viber-to-Viber voice and video calls are free over the internet, while Viber Out lets you call landlines and mobile numbers that do not use Viber, at per-minute rates that vary by destination. Recent comparisons list Viber Out rates starting around $0.019 per minute for some destinations, but your exact rate depends on country and number type.

That dual model is useful for families spread across regions where Viber is popular, such as parts of Europe and Asia. You can call app users for free, and use Viber Out for older relatives on a landline, without switching apps. Viber Out calls are capped in length in some cases, with a four-hour limit noted in Viber help pages, after which you can redial.

The drawback is rate complexity. You need to check the Viber Out rate for each destination before a long call, because mobile rates are often higher than landline rates. Still, for a mixed family where some people use Viber and some do not, this app is one of the most flexible options.

Rebtel is built for calling real phone numbers abroad at low rates, and it is a strong pick when the other person does not use a calling app. You buy credit or a plan, then call landlines and mobiles in many countries. Recent rate tables list examples such as $0.01 per minute to US numbers and $0.012 per minute to India, with higher rates to countries such as Nigeria and the Philippines, so your destination matters a lot.

A useful feature is local access numbers. Rebtel can assign a local number for an international contact, so you can dial that local number from any phone and Rebtel connects the call abroad. That helps when your internet is poor, because the call can route over a local line on your end while still reaching the international number at a low rate.

Rebtel is paid-only, so it is not the pick for a free app-to-app call. It is the pick for regular calls to family abroad, especially when the other person has a basic phone. Compare the rate for your exact destination in the app before you buy credit, because a rate that is cheap for one country can be costly for another.

TextNow gives you a free US phone number for calls and texts over Wi-Fi, with free calls to the US, Canada, and Mexico in recent app listings. International calls to many other countries are available at low per-minute rates, starting at less than $0.01 per minute for some destinations. That mix suits travelers, students, and anyone who needs a second number plus occasional international calls.

The free model is ad-supported, and free numbers can be recycled if you do not use them, so TextNow is less suited as a permanent primary number unless you use it regularly or upgrade. Paid plans remove ads and lock the number, which is worth considering if you use the number for important contacts.

We like TextNow as a free backup number and as a low-cost international caller for North America and nearby destinations. For frequent calls to one country outside North America, compare TextNow rates with Rebtel and Viber Out for that destination before you commit to a plan.

Telegram is a good free alternative when your contacts already use it for messaging. Voice and video calls are free over the internet, and the app works on phones, tablets, and desktop, with a focus on speed and privacy features. For communities, study groups, and friends who already chat on Telegram, calling inside the same app is convenient.

The limit is the same as WhatsApp: both people need the app, and there is no paid path to a landline. Telegram is also less widely used than WhatsApp in the US, so it works best when your specific circle already uses it. Call quality depends on internet, as with any app-to-app service.

Pick Telegram when your group already lives there, or when you want an alternative to WhatsApp for privacy reasons. Keep WhatsApp or a paid caller as a backup for contacts who do not use Telegram.

Signal is the privacy pick for international app-to-app calls. Calls are end-to-end encrypted, the app is run by a nonprofit, and there are no ads. Voice and video quality are solid on a good connection, and the app is simple to use for one-to-one and group calls.

The user base is smaller than WhatsApp, so you may need to ask contacts to install Signal first. That friction matters for family calls, where ease beats privacy features for many users. Signal also cannot call a landline, so it does not replace a paid calling service.

We recommend Signal when privacy is a priority and your contacts are willing to install it. For a broad family group, WhatsApp will reach more people with less setup, while Signal is the better choice for sensitive conversations with a smaller circle.

Yolla is a pay-as-you-go international calling app for users who need to reach real phone numbers without a monthly plan. You buy credit, check the rate for your destination, and call landlines and mobiles from the app. That model suits occasional callers who do not want a subscription for a few calls a month.

Rates vary by country and number type, so we list See website rather than a single figure that would mislead for other destinations. Yolla is less well known than Rebtel and Viber, which means fewer independent reviews to compare, but the core model is the same: credit-based calling to real numbers at rates below many carriers.

Use Yolla as a second paid option to compare against Rebtel for your specific destination. When one app is cheaper for your country, use that app for that route, and keep the other as a backup if quality or rates change.