I'm no newbie but this is an eye-opener for me. I recently engaged myself in crypto giveaways on Twitter, a friend had me joined because she's been winning some free crypto coins when she shares or retweets a post. She let me install a wallet from Google Play and of course I installed without hesitation since she's been using it for a while now. Anyway, there are two crypto wallets on my phone, Coinomi and Wallet of Satoshi. For now I'll depend on my friend's recommendation about using it, I think reviews from other users helps too.