Making international calls has become more than just dialing out—it’s about quality, cost, language support, reliability, and extra features. Whether you’re connecting with family abroad, doing business overseas, or keeping in touch while traveling, the right app can make a big difference.
Here are the top international calling apps in 2025, plus what to watch out for, strengths & trade-offs, and how to choose.
AI Phone
AI Phone is redefining international calling in 2025. More than just an affordable calling app, it’s built specifically to remove language barriers during calls. You can speak naturally in your own language, and the person on the other end hears it instantly translated into theirs. Unlike most apps that focus only on cheap rates or messaging, AI Phone adds real-time call translation, call transcription, and AI-powered summaries, making it an essential tool for cross-border professionals, immigrants, and global travelers.
Key Features:
- Live phone call translation: Speak in your language and AI Phone instantly translates it to the recipient’s language.
- AI call summaries: Get call summaries instantly when the call ends.
- Text-to-Speech during Calls: Type your response, and AI Phone will convert it into voice in the other person’s language.
- Real-time call transcription: Both sides of the conversation appear on your screen in real-time for easy reference.
- Real-time video call translation: Translate voice and video calls on 20+ apps like WhatsApp.
- Multiple language support: Supports 150+ langages and accents.
- Affordable international rates: While it’s a robust tool for translation, it doesn’t skimp on offering cheap international calling rates.
- Second phone number: Get second phone numbers from AI Phone and free to change it once per month.
Why it stands out: Built for international calls with real-time translation and call summaries. Perfect when language is the barrier.
Best For:
- People who need to make international calls in a language they don’t speak fluently.
- Travelers who face language barriers when calling local businesses.
- Professionals looking to grow their opportunity and connect with customers globally.
- Anyone who makes international calls in a language they don’t speak fluently
Yolla
Yolla is a reliable, budget-friendly choice for straightforward international calling. With affordable rates to 200+ countries and strong audio quality, it’s great for regular users who don’t need extra features.
Key Features:
- Competitive rates: Yolla provides affordable calls to over 200 countries.
- Wi-Fi and mobile data support: Use the app wherever you have an internet connection.
- No local number required: You don’t need to sign up with a local number to use the app.
Best For:
- Budget-conscious users making frequent international calls
- Travelers who want a simple, no-frills app for cheap overseas calls
Dingtone
Dingtone combines free in-app calling with affordable international rates. It’s especially useful for users who want a virtual number from another country for easier international communication.
Key Features:
- Free calls to Dingtone users: You can call other Dingtone users for free, no matter where they are in the world.
- Affordable international calls: Low-cost international calls, especially to landlines.
- Virtual phone number: You can get a virtual phone number from another country for better local calling rates.
Best For:
- Frequent callers to friends or family using the same app
- Users who need a secondary international number
Talkatone
Talkatone is a free calling and texting app within the U.S. and Canada, but it also provides affordable international call options. Its Wi-Fi support makes it a good choice for people traveling without mobile data.
Key Features:
- Free calls and texts to U.S./Canada: Great for those who are located in North America.
- Affordable international rates: You can make affordable calls to international numbers, especially to landlines.
- Wi-Fi support: Talkatone works over Wi-Fi, so you don’t have to worry about draining your mobile data.
Best For:
- North American users who want free domestic calling and cheap international rates
- Travelers in Wi-Fi zones who don’t want to use mobile data
Talk360
Talk360 is built for reliability in regions with poor internet coverage. Unlike many VoIP apps, it’s optimized for weak mobile networks, making it a strong choice for travelers to remote areas.
Key Features:
- Low-cost calls: Talk360 supports international calls to nearly every country.
- Works with poor networks: The app is optimized to work on weaker mobile networks, which is ideal for certain developing regions.
- No internet needed in some countries: You can make calls without Wi-Fi in certain regions, making it more flexible than many other apps.
Best For:
- People traveling or living in developing areas with unstable connectivity
- Users needing reliable calls to places where Wi-Fi is scarce
WhatsApp is one of the most widely used communication apps in the world. It offers free international voice and video calls as long as both sides have the app, making it an easy option for personal use.
Key Features:
- Free voice and video calls: As long as both users have an internet connection, calls are free.
- End-to-end encryption: WhatsApp provides strong security for your calls.
- Group calling: You can make group voice and video calls with up to 8 people.
Best For:
- Families and friends who already use WhatsApp
- Casual international communication with no extra costs
Google Voice
Google Voice blends affordability with useful productivity features. It’s a top choice for people who want low-cost international calls plus extras like voicemail transcription and call forwarding.
Key Features:
- Free calls within the U.S.: Enjoy free calls to any U.S. number.
- International calls: Very low rates for international calling.
- Voicemail transcription: Google Voice transcribes your voicemails for easy reference.
Best For:
- Professionals balancing work and personal calls
- U.S.-based users who want reliable, cheap international calling
Viber
Viber combines free app-to-app calling with affordable international rates for non-users. It’s a flexible solution for both personal and professional communication.
Key Features:
- Free calls to other Viber users: If both parties have the app, calls are completely free.
- Viber Out: Allows you to call non-Viber numbers at affordable rates.
- Group calls: You can make group calls with up to 20 people.
Best For:
- Users whose contacts already use Viber
- Small teams or families needing both group and one-on-one calling
TalkU
TalkU is a versatile calling app for both free app-to-app calls and low-cost international calls. With virtual numbers and Wi-Fi support, it’s a solid alternative for travelers and global communicators.
Key Features:
- Free app-to-app calls: Free calls and messages to other TalkU users
- Low-cost calls: Low-cost international calls to landlines and mobile numbers
- Virtual phone numbers: Option to get virtual international phone numbers
- Works over Wi-Fi and mobile data
Best For:
- Travelers who want a secondary number for local calling rates
- Users who call frequently across borders and want cost-effective flexibility
Rebtel
Rebtel makes it easy to call internationally, even without an internet connection. This is a huge advantage if you’re traveling to places with poor Wi-Fi availability but still need to stay in touch. It offers great rates to landlines and mobile phones, and the quality is generally excellent.
Key Features:
- No internet required for some countries: Rebtel uses local lines to connect calls, making it ideal when Wi-Fi isn’t available.
- Cheap international rates: The app offers low rates to landlines and mobile phones worldwide.
- VoIP and Wi-Fi calling: It works on both VoIP and Wi-Fi, providing flexibility.
Best For:
- Travelers in areas with weak or no internet access
- People who want flexible options for both VoIP and traditional calls
| App Name | Free App-to-App Calls | International Call Rates | Wi-Fi/Data Required | Translation Support | Virtual/Second Number | Best Use Case |
|---|---|---|---|---|---|---|
| AI Phone | No | Affordable | Wi-Fi / Mobile Data | Real-time call & video translation, transcription, AI summaries | Yes (monthly free change) | Travelers, immigrants, multilingual professionals |
| Yolla | Yes (app-to-app) | Low-cost to 200+ countries | Wi-Fi / Mobile Data | No | No | Budget-conscious frequent callers |
| Dingtone | Yes (app-to-app) | Low-cost to landlines & mobiles | Wi-Fi / Mobile Data | No | Yes (virtual numbers) | Users needing secondary international numbers |
| Talkatone | Yes (U.S./Canada) | Affordable international | Wi-Fi | No | No | North American users making cheap international calls |
| Talk360 | Yes (app-to-app) | Low-cost | Wi-Fi / Mobile Data; works with weak networks | No | No | Users in remote or developing regions |
| Yes | Free app-to-app | Wi-Fi / Mobile Data | Limited (translation via separate tools) | No | Family and friends using WhatsApp | |
| Google Voice | Yes (U.S.) | Low-cost international | Wi-Fi / Mobile Data | No | No | Professionals needing cheap calls + voicemail transcription |
| Viber | Yes (app-to-app) | Low-cost via Viber Out | Wi-Fi / Mobile Data | No | No | Personal & business users on a budget |
| TalkU | Yes (app-to-app) | Low-cost to landlines & mobiles | Wi-Fi / Mobile Data | No | Yes (virtual numbers) | Travelers needing local numbers & flexibility |
| Rebtel | No | Low-cost | Works offline in some countries | No | No | Travelers in areas with poor or no internet |