The two primary issues I have with KeeWeb on mobile are:
- Typing my master password every time is tedious on a touchscreen, I really miss LastPass's fingerprint reader integration here.
- The back button closes the app entirely, making me have to enter that tedious password again. This can be fixed be reworking the webapp to use the HTML5 history API, but just hasn't been done yet. Issue here https://github.com/keeweb/keeweb/issues/331