SimpleX Chat is an instant messenger that is decentralized and doesn’t depend on any unique identifiers such as phone numbers or usernames. Users of SimpleX Chat can scan a QR code or click an invite link to participate in group conversations.
-privacyguides.org
It’s clearly proving to be the most innovative technology when it comes to decentralized communication, in my opinion.
Here is my take as someone who absolutely loves the work simplex did on the SMP protocol, but still does not use SimpleX Chat.
First the trivial stuff:
These two are not that unexpected. Any other chat app with E2E security has tricky UX, and SimpleX takes the hard road by not trading off security/privacy for UX. I think this is a plus, but yes it annoys people.
Now for the reasons that really keep me away:
Finally a couple of points on some of the other comments: