It seems to me Monal has come a long way since release. Some devs just release their app and never work on it again - but not Monal! The Monal devs are reasonably active with maintenance & bugfixes. They’ve put together a very useful, feature-rich, easy-to-use XMPP client while keeping a minimalist feel.
Monal crashes occasionally, but not so much as to impede my usecase. I just close/reopen MonalXMPPChat , or ignore the crash warning, and pick up where I left off. (To devs: I’ll have to remember to send you the crash report next time. I think I tried once and it said my phone wasn’t set up to send emails? I dunno. I’ll try.)
Overall, MonalXMPPChat works great and has all the necessities. Works flawlessly with my cheap low-end VPS running ejabberd. Calls connect fast, voice is clear, no lag. OMEMO works; but I did have some issues with it early on where my recipient couldn’t read msgs (or vice versa) even though we had confirmed each other’s keys. To be fair this could have also been a user error. This was eventually resolved.
I would like to see additional privacy options. OMEMO is fine. I would like to see PGP implemented (for example, I believe the Linux XMPP client “Dino” has the ability to use PGP as well as OMEMO)
Perhaps even encrypted voice calls (assuming they are not already encrypted)