Does anybody know of some sort of chat client that supports following features in any way?
1. Works on Android, iOS and Windows. The Windows version can run over a browser, that's fine.
2. Supports logins from multiple locations at the same time. e.g. I can be logged in from my phone as well as PC at the same time without problems.
3. Saves the chat history.
4. Shows notifications on iOS and Android when new messages have been posted.
We thought about a Skype group, but they save the history only for a year. IDK how IRC is standing on this.
Basically this is what Facebook's messenger app and Facebook chat/PMs does, but Facebook's stuff has some major problems. It bugs out way too often, links sometimes won't work, image upload sometimes won't work, they annoyingly keep scrolling down when a new message arrives and you can't read it properly if there are lots of new messages and the conversations keeps going, etc.