In today’s world, staying connected is important whether you're traveling, working remotely, or living in another country. Regular mobile networks are not always reliable or affordable. That’s where Wi-Fi calling apps come in. With a stable internet connection, these apps allow you to make calls and send messages from almost anywhere, often at little or no cost.
If you are looking for the best Wi-Fi calling apps in 2025, this guide will help you choose the right one based on your needs.
What is a Wi-Fi Calling App?
A Wi-Fi calling app allows you to make voice or video calls using a Wi-Fi network instead of your regular mobile network. This means you can make calls even when your mobile signal is weak or unavailable.
Using Wi-Fi calling apps is very helpful while traveling abroad, as you can avoid high roaming fees. Many apps offer free calls to people who use the same app, while some also allow you to call landlines or mobile numbers at lower rates.
Benefits of Using Wi-Fi Calling Apps
- Save money on international calls
- No roaming charges when traveling
- Works even in areas with weak mobile signals
- Easily stay in touch with family and friends worldwide
- Many apps offer free or low-cost services
By using Wi-Fi calling apps, you can reduce your communication costs while staying connected anywhere in the world.
Best Wi-Fi Calling Apps in 2025
1. WhatsApp
WhatsApp is one of the most popular messaging apps in the world, and for good reason. Besides chatting and sharing media, WhatsApp allows users to make voice and video calls over Wi-Fi completely free of charge.
Pros:
- Free calls and messages worldwide.
- High-quality voice and video calls.
- Easy to use and widely available.
- Works on almost all devices.
Cons:
- Both parties must have WhatsApp installed.
- Limited features for calling landlines or non-users.
Who it's for:
Perfect for friends, families, and colleagues who all use WhatsApp.
2. Microsoft Teams (Free Version)
After the retirement of Skype on May 5, 2025, Microsoft Teams Free has become the recommended alternative for personal and professional communication. It offers robust features for chat, voice, and video calls, along with tools designed for collaboration.
Pros:
- Free to use with a Microsoft account.
- Chat, voice, and video calling features similar to Skype.
- Supports group meetings, screen sharing, and file sharing.
- Available on desktop, web, and mobile devices.
- Integrated with Microsoft 365 apps like Word, Excel, and Outlook.
- Skype users can migrate contacts and chat history by signing in with the same credentials.
Cons:
- Some users may find the interface more complex than Skype.
- Requires a Microsoft account to access full functionality.
- Best experience requires a stable internet connection.
3. Viber
Viber is another great option for Wi-Fi calling. Besides free app-to-app calls, Viber Out allows you to call landlines and mobiles around the world at low rates.
Pros:
- Free Viber-to-Viber calls and messages.
- Viber Out for calling non-users.
- Group chats and multimedia sharing.
- End-to-end encryption for security.
Cons:
- Requires both parties to have the app for free calls.
- Some international calling rates can vary.
Who it’s for:
Microsoft Teams Free is ideal for individuals, remote teams, and small businesses needing reliable chat, voice, and video communication. It’s also a great option for former Skype users looking for a smooth transition.
4. Google Voice
Google Voice allows users to get a free phone number for calling, texting, and voicemail. It works over Wi-Fi and can forward calls to different devices.
Pros:
- Free U.S. phone number.
- Affordable international calling.
- Call forwarding to multiple devices.
- Integrated voicemail and transcription.
Cons:
- Limited availability in some countries.
- Requires a Google account.
Who it's for:
Excellent for freelancers, small businesses, or anyone who wants a second number while traveling.
5. FaceTime Audio
If you’re an Apple user, FaceTime Audio is one of the easiest Wi-Fi calling options available. It works seamlessly between Apple devices and offers clear, high-quality voice calls.
Pros:
- Free and built into Apple devices.
- High-quality audio.
- No setup required if you have an Apple ID.
Cons:
- Only works between Apple devices.
- No option to call landlines or Android users.
Who it's for:
Perfect for Apple users who want simple, high-quality Wi-Fi calls.
6. Facebook Messenger
Messenger is widely used for text chats, but its Wi-Fi calling feature is just as good. You can make voice and video calls to any Messenger user for free.
Pros:
- Free voice and video calls.
- Works on almost any device.
- Easy to use with a Facebook account.
Cons:
- Both parties need to have Facebook Messenger.
- Calls may consume more data on poor connections.
Who it's for:
Great for anyone who’s already using Facebook to stay connected.
7. Signal
Signal is well known for its privacy-focused messaging, but it also offers secure Wi-Fi voice and video calls.
Pros:
- Strong encryption and privacy features.
- Free worldwide app-to-app calls.
- Simple and lightweight interface.
Cons:
- Both users need to have Signal installed.
- No option to call landlines or non-users.
Who it's for:
Ideal for those who want maximum privacy and security when making calls.
How to Choose the Best Wi-Fi Calling App
When picking a Wi-Fi calling app, consider the following:
- Who you are calling: Choose an app that your family, friends, or colleagues are already using.
- International calls: If you need to call landlines or mobiles, apps like Skype, Google Voice, or Viber are great options.
- Video calling needs: WhatsApp, FaceTime, and Messenger offer reliable video call features.
- Privacy concerns: Use Signal for strong privacy and security.
- Device compatibility: Some apps work better on certain devices (Apple, Android, etc.).
Wi-Fi Calling and Travel
If you travel often, Wi-Fi calling apps combined with a global data solution can help you stay connected easily. A global eSIM from WorldSIM allows you to access data wherever you go without expensive roaming fees. You can connect to Wi-Fi or mobile data through your eSIM and use any of these apps to call your family, friends, or business partners at low or no cost.
By using WorldSIM with your Wi-Fi calling app, you have a perfect combination for affordable communication while traveling internationally.
Conclusion
Wi-Fi calling apps are a great solution for staying connected, no matter where you are. Whether you’re traveling abroad, working remotely, or keeping in touch with family across the world, these apps make calling easier and cheaper. With many free options available, you don’t have to worry about high international call charges or weak mobile signals.
Choosing the right app depends on your needs. If you want simple free calls, WhatsApp and Messenger are great. For calling landlines or non-app users, Skype and Viber offer good international rates. For privacy, Signal is the best choice. And if you are an Apple user, FaceTime is a built-in solution that works great.
Pair these apps with WorldSIM’s international eSIM service, and you’ll have reliable, affordable communication wherever your travels take you.
