I'm thinking of the things listed on the Privacy Guides real-time communication section
https://www.privacyguides.org/en/real-time-communication/
I'm thinking of the things listed on the Privacy Guides real-time communication section
https://www.privacyguides.org/en/real-time-communication/
What's your use case? Likeminded techie friends? Family members?
Signal works well as an alternative to the likes of Telegram and WhatsApp, even if it still requires a phone number and is centralised. Far easier to explain to the family instead of "oh well you can sign up on this website or this website or that website".
Granted, if you want to host a small Matrix server just for the family, then go for it.
It doesn't require a phone number anymore.
As far as I know Signal still requires a phone number to register an account. Since a while you can use usernames to connect with others instead of exchanging phone numbers.
Ohh, I wasn't aware that it was still necessary for registering.