This app was mentioned in 3 comments, with an average of 28.67 upvotes
I downloaded Android Studio with zero knowledge about app development or programming in general whatsoever. Five days later I put out the lowest effort app that is available right now on the Google Play Store.
The development process went something like: "Oh I know! I'm going to make it look like this and when you click that it's going to do that and it's going to look really cool". Then I started looking up how to do these things and was like "Whoa that looks hard, I'm just going to publish it like this."
I did it because it gave me something to do though. And I use it on the toilet and before bed sometimes.
It is free without ads because it should not even exist, let alone generate money.