Link	Google Hangouts	LINE	Skype	Telegram	Viber	WhatsApp	WeChat	WeChat	Facebook messenger	BlackBerry Messenger	Kik Messenger	Kakao Talk	Hike	snapchat
Image
Website	google.com/...	line.me	skype.com	telegram.org	viber.com	whatsapp.com	wechat.com/en/	wechat.com/...	messenger.com	bbm.com	kik.com	kakao.com	hike.in	snapchat.com
Worldwide User	500 milion	400 million	560 million	100 million	600 million	800 million	1.1 Bil.	438 million (Aug 2014)	900 million	115 mil registered, 85 mil active users	100 million	80 Mil.	15 million
Main Function		Option to use a PIN to open the app.		Secret chat. Option to use a PIN to open the app. Add contacts by username, without giving your phone number.	to send text, stickers and emoticons, photos, voice and video messages for free to other Viber users.	to send a message to your contacts in without any charges alternative way from contact people by using phone messaging	WeChat provides users with free mobile instant messaging, video and voice calls, group chat, and multimedia messaging		private and group messaging/chat, voice, video, SMS and MMS messaging,
Features
IM Style Chat	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Group Chat	Yes 150 people	Yes 50	Yes 300 people	Yes max 5000 users	Yes max 15 users	Yes max 100 users	Yes	Yes	Yes	Yes up to 50 per group
Make video calls	Yes up to 10 people	Yes	Yes up to 25 people	No	Yes	No	Yes	Yes	Yes	Yes BlackBerry only, coming to iOS, Android, Windows Phone soon
Group calls	Yes 10 users	Yes max 8 users	Yes up to 25 people	No	No	No	Yes Live Chat		Yes
SMS Delivery	Yes on Android	Yes	Yes Paid feature ($ varies per country)	Yes	Yes	Yes		Yes	Yes	No
MMS			No		Yes	Yes		Yes		No
Make phone calls	Yes	Yes Free	Yes Based on subscription plans	No	Yes Based on subscription plans	Yes 0.99 USD/year		Yes	Yes	Yes In-app voice call over mobile data or wifi
Free phone calls	Yes between US, Canada, Puerto Rico	Yes	Yes 25 user limit	No	Yes	Yes		No	Yes	Yes In-app voice call over mobile data or wifi
Caller ID	No	Yes	Yes Paid feature	No	Yes	No		Yes	Yes
Payment methods	Yes free		Yes Visa, Mastercard, Paypal, Ukash, Skrill, Maestro, Paybycash,sofortbanking, one-off bank transfer, Diners, paysafe card, JCB	Yes free	No Calling others through phone provider	Yes free			Yes free
Phone Contact Integration	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Google Contacts integration	Yes
FB Contact Integration	No		Yes	No	No	No		No	Yes
Custom Chat Area	Yes Background	Yes Background/ Font/ Sound	No	Yes Background/ Font/ Sound	Yes Background/ Font/ Sound	Yes Background/ Font/ Sound	Yes Background/ Font/ Sound	Yes		Yes Wallpaper		Yes Background/ Font/ Sound
File transfer		No	Yes	Yes	- only some file formats	No		Yes	Yes	Yes
Photo based contact	Yes	Yes	Yes	Yes	No	Yes		Yes		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 16MB
Share voice message		Yes	No	Yes	No	Yes	Yes	Yes	Yes	Yes
Registration
Without phone number	Yes	Yes	Yes	No	Yes	No	Yes	Yes		Yes	Yes
Email + Password	Yes	No	Yes	No	No	No		Yes
Facebook	No	Yes	No	No		No		Yes	Yes
Share account on multiple devices	Yes		Yes	Yes	Yes	No			Yes	No
Platforms
Linux	Yes with web browser	No	- outdated version		Yes Ubuntu, Fedora	No				No	No
Android	Yes	Yes	Yes	Yes	Yes	Yes	Yes		Yes	Yes	Yes	Yes	Yes
IOS	Yes	Yes	Yes	Yes	Yes	Yes			Yes
macOS	Yes with web browser	Yes	Yes	Yes	Yes Mac/OSX	Yes			Yes via Web browser	No	No
Windows	Yes with web browser	Yes	Yes	Yes	Yes Desktop, Win 10, Win Phone 8	Yes	Yes		Yes via Web browser
Blackberry OS	No	Yes	Yes	No	- text only	Yes	Yes			Yes	No	Yes