I've been fairly happy with Transit.

https://transitapp.com/

The app has been buggy for years for my DH. I think that's normal.

The bus route I rely on for my daily commute (N4), seems completely whimsical. Bus arrives maybe every 40 minutes but at random intervals. Spoke to a driver and he thought the bus came every 10. It does not. He said there are a lot of drivers out. How sporadic are WMATA buses in your opinion? How do you time it if the app doesn’t correspond at all to arrival times? I know WMATA and Metro are not doing well financially, but all these people and leaders who are pushing public transportation as a greener way to commute, what are you doing about this? I’m out here freezing my ass off. I have a hybrid electric car and could drive to work, except it’s impossible to avoid outrageous parking tickets and fees. What do people think? What can we do about this?