Even though users have downloaded more than 20 billion apps so far, the good news is that the market is not yet saturated with apps and therefore you can still make some good money if you are smart. May be the market will be saturated in a few years coming, but as of now, there is a lot of space for many more apps. Do you know that you can cash in on this goldmine too? However, this will not just happen. You will have to develop the apps first and then you will have to market them. Now, developing is easy because you just have to outsource the service. However, marketing is harder. You will have to do it on your own.
Do not do your coding. Leave that to someone else. Why? As an automatic appreneur, you need to get your app in the market as soon as possible if you aim to make any money out of it. If you do it, you will be too slow. Use your time to research, to predict the behavior of the market trends, to find out what products will be welcomed into the market. Involve others. Do not do all the work on your own.