They have an android app.

If you really want to use an online wallet for some unknown reason, blockchain.info isn't as bad as Trustpilot suggests.  They can be buggy at times, but people tend to leave reviews a lot more often when they have a problem.  Their fee estimation has never been very good though, so make sure you set an appropriate fee for the priority you want your transaction to have.

BTC.com is another online wallet with a phone app if you're looking for an alternative.

Electrum and Mycelium are both good mobile wallets with control over your private keys though.