Goodluck. I've yet to meet anyone I chat with that is willing to use these apps lol. Session is shutting down and it was the best. Status is probably the current best. The absolute best is Briar but it doesn't work in IOS because Apple doesn't allow the tech used in it on their phones (which is how you know it's good) so goodluck getting adoption to that. Telegram sold out after the France incident. Signal has a known CIA backdoor.