Btw i won't recommend you to use 3rd party wallets which are play store, many of them don't allow you to save the seed and some are just plain there to steal your bitcoins, so don't go the mobile way.
Use something like electrum for desktop, they are lite wallets and are open source.
There are some wallet that actually safe to use i still not experience any issue and i will recommended mycelium since you here in alternative clients you can see the mycelium section for more info about mycelium..
Also i think there is electrum wallet for mobile. but there are some bug or glitch in that wallet base in other mobile electrum user..
If you really wanted to be safe of you coins use a laptop and use electrum or bitcoin qt if you wanted to download the whole blockchain..