[Solved] What's the status of the Android app?

So it's perhaps a missconfiguration issue but:
- I've no sound notification when there's update even if the information is updated on the mobile app. So if i check, i found the new informations, but i've not been notified.
- when sometimes there's a red bullet with a number on the top left menu icon and i clic on it, it give me the list of channel but there's no more information on wich channel is concerned.
I've a Samsung Galaxy S6