The ibbü mobile app is available on both Android and iOS, therefore, you can download it using the
Once the app is installed on your mobile device, you can sign in with the same credentials you use on desktop devices.
Warning: you cannot be connected to both a mobile device and a desktop device at the same time. If you log in to the mobile app, you will get disconnected on your desktop device.
Moreover, if you just kill the app instead of using the "logout" button, you will keep on receiving the notifications of chats received on desktop.