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Unigram
Telegram
Telegram X
Plus Messenger
Webogram
Vidogram
WhatsApp
Signal
Olvid
FluffyChat
Signal
Molly (Signal fork)
TeleGuard
Mi Airit
aTalk
NYNJA
Unigramunigram is very nice it is also as fast and secure as telegram but in unigram, I have found very nice UI and functionality. I love this application.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
FluffyChat - Open. Nonprofit. Cute ?
Telegram X - Meet Telegram X for iOS and Android – two new official apps that offer more speed, longer batter life and smooth animations.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
Plus Messenger - Free Android Messenger that uses Telegrams API.
Molly (Signal fork) - Molly is an independent Signal fork for Android