why Signal and not wire? (no sim card needed), No need to allow access to your address book to make group chat. Works in browser, ios, android, desktop app. Using signal protocol. And you can draw in it.
this is the current problem i have with chat. there are too many options.
On the flip side, it's not very customizable and doesn't have a lot of the more "modern" UX goodies like emoji reactions or threads. But it's overall very good and I see no reason to change.