Best WiFi Calling Apps 2026: Top 10 Apps Compared
10 best apps to make calls over WiFi without cell service. Free options (WhatsApp, FaceTime) and paid (BubblyPhone from $0.02/min). Works on iPhone, Android, tablets.
The best free WiFi calling app is WhatsApp: it calls any other WhatsApp user free over Wi-Fi on Android and iPhone, and FaceTime Audio does the same between Apple devices. Google Voice calls US and Canadian phone numbers free (US accounts only). To reach landlines and mobiles abroad, BubblyPhone charges from $0.02/min.
Quick Answer: The best WiFi calling app is BubblyPhone - it lets you call any phone number worldwide (not just app users) at rates starting from $0.02/min. For free app-to-app calls, WhatsApp and FaceTime are excellent choices.
What is WiFi Calling?
WiFi calling uses Voice over Internet Protocol (VoIP) to transmit calls over a WiFi network instead of traditional cellular towers. This means you can:
- Make calls in areas with poor cellular coverage but good WiFi
- Call from basements, elevators, or buildings that block cell signals
- Save money on international calls (often 90%+ cheaper)
- Make calls on tablets, iPads, and devices without SIM cards
- Avoid roaming charges while traveling abroad
Types of WiFi Calling
Built-in WiFi Calling
Your phone's native WiFi calling feature (Settings → Phone → WiFi Calling)
- Uses your existing phone number
- Requires carrier support
- Seamless handoff to cellular
VoIP Apps
Third-party apps like BubblyPhone, WhatsApp, Viber
- Works without carrier support
- Often much cheaper rates
- Can get virtual numbers
10 Best WiFi Calling Apps (2026)
1. BubblyPhone
The best overall WiFi calling app for calling regular phone numbers. Unlike WhatsApp or FaceTime, BubblyPhone can call any landline or mobile worldwide - not just app users.
2. WhatsApp
The world's most popular messaging app with free voice and video calls. Perfect when both parties have WhatsApp installed.
3. FaceTime
Apple's built-in calling app. Excellent quality for calls between Apple devices (iPhone, iPad, Mac).
4. Skype (shut down May 2025)
Microsoft shut Skype down on May 5, 2025 and moved users to Microsoft Teams. Listed here for reference only.
5. Google Voice
Google's VoIP service with free US calling. Great for US residents who need a second number.
6. Viber
Popular messaging app with Viber Out for calling regular phones. Strong in Eastern Europe and Asia.
7. Telegram
Privacy-focused messenger with voice calls. Popular in Russia, Iran, and growing globally.
8. Signal
The most secure calling app. Open-source, recommended by privacy experts and journalists.
9. Discord
Originally for gamers, now used widely for voice chat. Great for group calls and communities.
10. LINE
Dominant in Japan, Taiwan, Thailand. Free calls within LINE, LINE Out for regular phones.
WiFi Calling Apps Comparison
| App | Free Calls | Call Regular Phones | Best For |
|---|---|---|---|
| BubblyPhone ⭐ | App-to-app | Yes (from $0.02/min) | International calls |
| Yes | No | Free messaging/calls | |
| FaceTime | Yes | No | Apple users |
| Skype (shut down May 2025) | Skype-to-Skype | Yes ($0.02+/min) | Business |
| Google Voice | US/Canada | Yes | US residents |
| Viber | Viber-to-Viber | Yes (Viber Out) | Eastern Europe |
How to Enable WiFi Calling on Your Phone
📱 iPhone
- Open Settings
- Tap Phone (or Cellular)
- Tap Wi-Fi Calling
- Toggle Wi-Fi Calling on This iPhone ON
- Enter emergency address if prompted
🤖 Android
- Open Settings
- Tap Network & internet
- Tap Calls & SMS or Mobile network
- Tap Wi-Fi calling
- Toggle it ON
Frequently Asked Questions
Does WiFi calling use my phone minutes?▼
It depends. Built-in carrier WiFi calling usually uses your plan minutes. Third-party apps like BubblyPhone, WhatsApp, and Viber have their own pricing (often free or much cheaper).
Can I use WiFi calling without a SIM card?▼
Yes! Apps like BubblyPhone, WhatsApp, and Viber work without a SIM card. Just connect to WiFi, create an account, and start calling. See our complete guide to calling without a SIM.
Is WiFi calling free?▼
App-to-app calls (WhatsApp to WhatsApp, FaceTime to FaceTime) are free. Calling regular phone numbers costs money, but much less than traditional calls - BubblyPhone offers rates from $0.02/min.
Does WiFi calling work internationally?▼
Yes! This is one of the biggest benefits. WiFi calling works anywhere you have internet, making it perfect for international travel without roaming charges.
How much data does WiFi calling use?▼
Voice calls use about 0.5-1 MB per minute. Video calls use 3-5 MB per minute. A 10-minute voice call uses roughly 5-10 MB.
Start Making WiFi Calls Today
Call any phone number in 200+ countries from $0.02/min. No SIM required.