Alerts and watch dont work

I got this app specifically for the Apple Watch support. I have a good subway app already but when I get alerts on my watch I cant act on them to see details. Too bad -- I dont get any alerts at all with this one! I set my favorite lines and stations and have all times turned on but nothing happens even when my other app pops up. The watch app also fails to load. The info in the phone app seems accurate but there are better ones out there that will give you a heads up.

Adam807 about NextStop - NYC Subway, v2.5.0