Citymapper is okay, it sometimes screws up with its notifications feature though. I live in London and have it set to notify me if my "favourited" tube lines ar

Citymapper is okay, it sometimes screws up with its notifications feature though. I live in London and have it set to notify me if my "favourited" tube lines are suffering problems. A signal failure happened earlier this week on my line and I received no notification of it, only finding out when I got to the station. It's probably an issues to do with Androids background notification system or something, but I dunno