I only ever used blockchain mobile wallet and mycellium for mobile wallet, both working very well and almost no problem (except some error when blockchain down).
But after all, i don't have enough confidence to put decent amount of bitcoin on mobile wallet, because i don't 100% trust my android device

i've installed some "cr
ack" APK, and i afraid one of them can access my wallet. (through keylog or any other method)
so i only put small amount of bitcoin on my mobile wallet, if i need more bitcoin to spend with my phone, i'll send it from my computer's wallet to mobile wallet.
Mobile wallet is very helpful and effective for transaction when we go to place which have merchants that accept bitcoin as payment

I use mycellium with trezor on android, suppeerrr secure very small risk to using it because the private keys never leave the Trezor
what is trezor anyway? another apps to secure mobile wallet?