Sonar messenger via tor. Does it safe ? Any reviews? Or suggestions for secure and private chatting website?

What do you want advice about?
Hello does anyone heard about sonar messenger ? It works via tor only but I wanna see any reviews about that.

What have you considered or looked at already?
On reddit and duckduckgo but I can’t find any reviews

In brief, tell us about your privacy threat model?
I actually don’t have threat models I just ditch most of most used sites like facebook , twitter etc.
on reddit I can’t find anything about that messenger. I hope there is someone who knows more. I actually use signal but not much my friends doesn’t use it.

I haven’t heard of Sonar messenger either. It might be a relatively new player to the world of IMs so it’s not really recommended that you do important stuff with it. As for alternatives you can look out for Signal and Onionshare(tor).