Apps I use: Telegram
Excellent:
Usability
UI
Good
Features (far better than sms and mostly in another league than Whatsapp as well.)
Bad:
No end to end encryption by default.
In all fairness a major reason for this is to support usability
Warning: this is my somewhat uninformed decision, I am not a cryptographer. There seems to be well argued concerns about the crypto used in Telegram. While I haven’t seen anybody posting any known weakness, a number of cryptographers have been concerned about it. I should note that I choose to use it for many things anyway, I just pretend to myself that anybody can read it if they really want.
More about Telegram
Compared to Whatsapp, Telegram has more features and new features mostly arrive weeks or months earlier than on WhatsApp.
Notable examples include
Reply to a specific message. (Came on WhatsApp later.)
@ mentions. (Came on WhatsApp later.)
Tags (not yet available on WhatsApp.)









