The Althea project is an interesting one. I have not done much research into it yet, but its on my radar.

As for Keplr, I have not used the mobile version of it so I can't really help there. I do know the mobile app is only quite recent addition (in the last month or so) so its likely still buggy.

I have used Cosmostation as an alternative Mobile app, and it worked well for staking and basic functions. I stopped using it and shifted to the keplr browser for Osmosis functionality.

Thanks for the comment @r3dbeard