Encrypted messaging

Someone made a list ranking messengers for privacy, not necessarily encrypted but I thought I would share here Also sorry, I don't know how to crosspost/it isn't supported on my client yet.

a free communication tool that is designed for simplicity, privacy, and security. All interaction between you and your online peers is encrypted. There is no record of your conversation once you all leave.

There's a lot of good suggestions, but I'd be interested in finding services which provides an API and a fairly easy way to interact with the messages from a script.

Currently I'm limited to Telegram, and the occasional Discord connection, though none of these are encrypted.

Thought I'd post this here since I haven't seen many mentions of it.

Edit: If anyone here uses matrix, what client do you use and why?

For me it's SchildiChat it has all the features of element (if not more) and a more community based approach.

I have been playing around with Jami but it seems that the message delivery issue is still a problem.

I need something where you can place a call to a contact and it will ring on their phone. Simplex chat kind of works but it takes forever to go though due to the notification delay

I don't want to use phone numbers