 Link | Zangi Safe Messenger | Viber | Skype | Google Hangouts | Facebook messenger | Telegram | Imo | Nimbuzz | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Image |  |  |  |  |  |  |  |  |  |  |
| Website | whatsapp.com | zangi.com | viber.com | skype.com | google.com/... | messenger.com | telegram.org | wechat.com/en/ | imo.im | nimbuzz.com |
| Worldwide User | 800 million | 2 million | 600 million | 560 million | 500 milion | 900 million | 100 million | 1.1 Bil. | 200 million | 50 mil |
| Main Function | to send a message to your contacts in without any charges alternative way from contact people by using phone messaging | safe messaging with decentralization, encryption and serverlessness, calling even with 2G/Edge internet or Wifi, original stickers, low data usage | to send text, stickers and emoticons, photos, voice and video messages for free to other Viber users. | private and group messaging/chat, voice, video, SMS and MMS messaging, | Secret chat. Option to use a PIN to open the app. Add contacts by username, without giving your phone number. | WeChat provides users with free mobile instant messaging, video and voice calls, group chat, and multimedia messaging | Message and video chat with your friends and family for free, no matter what device they are on! | Free messages, Free Calls. Unlimited! CHATROOMS to discover new friends in chat rooms, Use popular chat buddies for Cricket, Astrology, Meet a Stranger, Jokes, Games. Custom chat wallpaper, N-world, Virtual Goods, Free Avatars, Games and more. | ||
| Features | ||||||||||
| IM Style Chat | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes Yes | Yes |
| Group Chat | Yes max 100 users | Yes | Yes max 15 users | Yes 300 people | Yes 150 people | Yes | Yes max 5000 users | Yes | Yes Unlimited | Yes unlimited |
| Make video calls | No | Yes | Yes | Yes up to 25 people | Yes up to 10 people | Yes | No | Yes | Yes Yes | Yes |
| Group calls | No | No | No | Yes up to 25 people | Yes 10 users | Yes | No | Yes Live Chat | Yes Yes | |
| SMS Delivery | Yes | Yes | Yes | Yes Paid feature ($ varies per country) | Yes on Android | Yes | Yes | Yes Yes | No | |
| Make phone calls | Yes 0.99 USD/year | Yes | Yes Based on subscription plans | Yes Based on subscription plans | Yes | Yes | No | Yes Free | Yes USD 0.048/min mobile 0.020 landline | |
| Free phone calls | Yes | Yes | Yes | Yes 25 user limit | Yes between US, Canada, Puerto Rico | Yes | No | Yes | ||
| Caller ID | No | Yes | Yes | Yes Paid feature | No | Yes | No | |||
| Payment methods | Yes free | Yes free | No Calling others through phone provider | Yes Visa, Mastercard, Paypal, Ukash, Skrill, Maestro, Paybycash,sofortbanking, one-off bank transfer, Diners, paysafe card, JCB | Yes free | Yes free | Yes free | Yes Free | Yes Visa, Mastercard | |
| Phone Contact Integration | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes Automatic | Yes | |
| Google Contacts integration | Yes | Yes On Android - automatic | ||||||||
| FB Contact Integration | No | No | No | Yes | No | Yes | No | Yes Yes | Yes msn,yahoo,google talk,AIM,Myspace ICQ & Hyves | |
| Custom Chat Area | Yes Background/ Font/ Sound | Yes Background | Yes Background/ Font/ Sound | No | Yes Background | Yes Background/ Font/ Sound | Yes Background/ Font/ Sound | |||
| File transfer | No | Yes All Files | - only some file formats | Yes | Yes | Yes | Yes Yes | |||
| Photo based contact | Yes | Yes | No | Yes | Yes | Yes | Yes Where available | Yes | ||
| Serverless | yes | |||||||||
| Decentralization | Yes | |||||||||
| Encryption by default | Yes | |||||||||
| Sharing Features | ||||||||||
| Share photo | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes Yes | |
| Share video | Yes | Yes | Yes | Yes | Yes | Yes | Yes Yes | |||
| Share voice message | Yes | Yes Automatic too | No | No | Yes | Yes | Yes | Yes Yes | ||
| Registration | ||||||||||
| Without phone number | No | Yes With email too | Yes | Yes | Yes | No | Yes | Yes Phone number required | No | |
| Email + Password | No | Yes Coming Soon | No | Yes | Yes | No | Yes No | |||
| No | Yes | No | No | Yes | No | |||||
| Share account on multiple devices | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes Yes | ||
| Platforms | ||||||||||
| Android | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| IOS | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes Yes | Yes | |
| macOS | Yes | - Coming Soon | Yes Mac/OSX | Yes | Yes with web browser | Yes via Web browser | Yes | Yes | ||
| Windows | Yes | - Coming Soon | Yes Desktop, Win 10, Win Phone 8 | Yes | Yes with web browser | Yes via Web browser | Yes | Yes |