It doesn't support ios. Some of my friends are on that platform. I also installed the android client and it wanted permission for the camera, files and I think

It doesn't support ios. Some of my friends are on that platform. I also installed the android client and it wanted permission for the camera, files and I think the microphone. I didn't grant it any of them and it then refused to work. So it got uninstalled. A messaging app has to be able to work without any permission except for network access and maybe the contact book.