Have you looked at 'threema'? I recently installed it and I'm actually pleasantly surprised.
However, all of these bloody messengers mean that my contacts list is spread across a multitude of programs: we need the iOS/Android equivalent of pidgin.
However, all of these bloody messengers mean that my contacts list is spread across a multitude of programs: we need the iOS/Android equivalent of pidgin.
Edit: Generally, Threema seems interesting feature-wise, but I think the price (4€) will prevent my contacts from using it...
so is regardless of user count