With all the bitcoin earning apps and programs, you need a place to put it. I use CoinBase. It is free, and when you buy $100 or more worth of bitcoin using the app, using my referral code, you get $10 worth of bitcoin on top of that.
I like using the app because it is simple, keeps my bitcoin secure, and it is highly rated. I also do automatic purchasing each week of small amounts of Bitcoin (BTC) and Ether coin (ETH), and over the long run, they have grown in value significantly, even with the dips and drops occasionally.
Contact me for the invite as it is a one-time use code rather than a link anyone can use.