What is the cheapest way to call another country?

If the other person uses the same app, WhatsApp, FaceTime or Viber calls are free over the internet. To call a landline or a mobile that is not on an app, use a pay-as-you-go service such as Webbphone, Viber Out, Rebtel or Talk360, and compare the per-minute rate for your destination.

Which international calling service works without an app?

Webbphone works in a web browser on a computer or phone, with no app. Google Voice also has a web app, but personal accounts are only for the US.

Can WhatsApp call a landline?

No. WhatsApp calls work only between WhatsApp users over the internet. To call a landline or an office, you need a service that connects to the phone network.

Is a subscription or pay-as-you-go cheaper for international calls?

Pay-as-you-go is usually cheaper if you call now and then or call many countries. A monthly plan for one country can be cheaper if you call that country for many hours every month.

Best International Calling Apps and Services in 2026

A plain comparison of Webbphone, Google Voice, Viber Out, Rebtel, Talk360, Yolla, WhatsApp and FaceTime for calls abroad: who each one is for and how you pay.

There are two kinds of international calling apps. App-to-app services such as WhatsApp and FaceTime are free, but both people need the app and an internet connection. Calling services such as Webbphone, Viber Out and Rebtel connect to the normal phone network, so you can call any landline or mobile, including banks, offices and relatives without a smartphone. They charge per minute or by plan.

International calling services at a glance

Service	Best for	Where	Calls landlines	How you pay
Webbphone	Calls from a computer, no app	Web browser	Yes	Pay-as-you-go from $5
Google Voice	People who live in the US	Web and app	Yes	Prepaid credit (US accounts only)
Viber Out	People who already use Viber	App	Yes	Credit or plans
Rebtel	Regular calls to one country	App	Yes	Credit or subscriptions
Talk360	Calls from a smartphone	App	Yes	Pay-as-you-go
Yolla	Small top-ups on a phone	App	Yes	Prepaid credit
WhatsApp	Free calls to WhatsApp users	App	No	Free
FaceTime	Free calls between Apple devices	Apple devices	No	Free

1. Webbphone: best for calls without an app

Webbphone works in your browser. You sign up with an email address from any country, add credit from $5 and call mobiles and landlines in 230+ countries. Credit never expires, the dialer shows the rate before each call, and you can verify your own number as the caller ID. New accounts get one free call of up to 1 minute on most destinations. See the rates.

2. Google Voice: best if you live in the US

Google Voice gives US users a free US number and low international rates from prepaid credit, on the web and in an app. Personal accounts need a US number and work only in the US. Read our Google Voice alternatives if you are elsewhere.

3. Viber Out: best if you already use Viber

Viber Out calls any phone number from the Viber app, with World Credit per minute or a plan.

4. Rebtel: best for regular calls to one country

Rebtel offers credits or a monthly subscription for one country. Calls can go over Wi-Fi, mobile data or a local access number.

5. Talk360 and Yolla: phone apps with prepaid credit

Both apps sell prepaid credit for calls to landlines and mobiles. Talk360 has a free 1-minute test call; Yolla has free Yolla-to-Yolla calls.

6. WhatsApp and FaceTime: free, but only app to app

Use them when the other person has the same app. They cannot call landlines, offices, or people without a smartphone. FaceTime works only on Apple devices.

How to choose

Does the other person use WhatsApp or FaceTime? Use that, it is free.
Do you need to call a bank, an office or a landline? Use a calling service. See how to call your bank from abroad.
Do you call from a computer? Webbphone needs no install.
Do you call one country for hours each month? Compare a plan with the per-minute rate on our rates page.