SimpleX seems ok, if you use a VPN or Tor and have a disposable phone number or anonymous number then Signal is also ok. XMPP with OMEMO is ok as well.
Better than Signal?
To use SimpleX do I need a VPN or Tor?
Yes, you can host your own server with xmpp.
Conversations it's great, but i would like to choose my own algorithm rather Omemo.
Libre Threema is an option because don't enforce you to register a mobile number.
Matrix is an alternative too, justo avoid whatsapp and telegram.
Interesting topic.
Javcek You don't have too, however it is recommended to use a VPN plus Tor if you're able.
Icecube Yes, have been hosting my own XMPP server for more than 10 years now. XMPP is the way to go and would be a great choice if more people were willing to use it. Used OTR for many years then decided to go with OMEMO lately, it's a good option and has been tested by a lot of researchers.
I think I'll check out Matrix. Does it use google push for messaging or does it have its own implementation?
[deleted]
Javcek Matrix is "an open network for secure, decentralized communication", not an app. Every Matrix-compatible app can use any notification system, including Firebase Cloud Messaging (FCM) by Google or Its own.
[deleted]
- Edited
Threema's developers downplayed 7 vulnurebilities found by the Swiss Federal Institute of Technology Zürich: https://www.kaspersky.co.in/blog/7-threema-vulnerabilities/25074/
GrapheneLover
The problem is that XMPP isn't really user friendly at all at a level where normies would ever consider using it. Conversations doesn't have a desktop app, for example.
Javcek Session is pretty decent but has some bugs. I use it occasionally but the biggest issue for any secure messaging platform is if I only have one or two contacts on it and everyone else I talk with can't be bothered to use it, there's little value. I use signal, session and even whatsapp, they have their own strengths and weaknesses but are all far superior to sms.
I like signal, it has a larger user base, a low barrier for entry and despite a lot of concern about having to provide a phone number, is quite secure.