@nprofile1q... I used Delta Chat since it's invention, but I just deinstalled it, since I gave up hope for it to get an option to prevent others deleting messages on *my* devices!!! The other thing that prevented adoption at least for group chats is that there can't be firm admins for groups. There's great work in Delta Chat & it made huge progress over the years, but forcing remote message deletion & unlimited editing onto all users is an absolute no-go.