1
WhatsApp Messenger
2
Messenger Duo for WhatsApp
3
Discord – Talk, Play, Hang Out
4
Facebook
5
OmeTV – Video Chat Alternative
6
Messenger Web
Threema. The Secure Messenger
ChatMate for WhatsApp
IM+ Pro Social Aggregator
TeamSpeak 3
Badoo Premium
G-Whizz! Plus for Google Apps - The #1 Apps Browser