I think it's a great app, BUT I can't give it more then 1 star. What's the point of a messaging app if you can't get notifications? I have tried uninstalling, reinstalling, googling, updating, doing everything I can in the settings. I can't get notifications unless I physically open the app every 10 minutes or so. It's getting to the point where it's affecting work because they all use signal. It seems only androids are having the issue and not iphone. Only get notifications on wifi