Android apps are neglected next to ios. Examples:
* spotify is shit on android. They broke audio playback during system announcements (like google maps directions) and just didn't give a damn for two months. It's not like anybody uses spotify and maps in a car or anything.
* most bank apps on android still don't take advantage of fingerprint auth to avoid typing long bank passwords. Four word passwords with punctuation are super fun to type on mobile.
* fitbit: Until about 6 months ago, pushing back from various subscreens would take you out of the app instead of navigating back to the main screen. There's clearly no-one who matters at fitbit that cares about android. It also doesn't particularly reliably connect to the device. Graphs and data desync from each other. I have not seen this on ios.
* there really isn't any reader on android as nice as GoodReader
* games come second, if ever -- eg kingdom rush frontiers