I used to love this app – unquestionably some of the best $4.99 Id spent when when I first bought it – but now it seems increasingly neglected by its developers: its main usefulness is gone without the push notifications for iOS 9, and now that Google and Apple Maps (along with many others) offer exact departure times for individual stations, it almost makes the app gratuitous without those invaluable real-time service alerts – they were critical for me to avoid getting stuck with iOS 8 and earlier, all without me actually having to launch the app.
Also, when I wrote the apps customer support citing my concern well over a month ago, I didnt even get the courtesy of a reply, if only to say "at this time we cant support notifications on iOS 9," for example. I really hope to see a turnaround from them soon.