For those who followed my old development blog at bastecklein.com, you might recall that for several years, I made a large percentage of my income through "prank" type apps on Google Play. Apps like Age Scanner, Lie Detector, and Fingerprint Lock Screen brought me literally thousands of dollars per month, and even though the apps didn't do anything real "functionality"-wise, there was obviously large consumer demand for these kinds of apps, as evidenced by the large revenues they were bringing in on a monthly basis.
That all changed in the spring of 2015, when Google suddenly took down virtually all of my prank-type apps from the Play Store all at once. The months that followed saw a steady decrease in revenues week after week, as my app library slowly faded from peoples devices (and from existence). During this time my business was largely held afloat by my PDF Document Scanner app on Android, and by my various offerings on the Windows Store (at that time, Windows Phone was also still a thing). In 2016 I got lucky when My Colony ended up taking off across all platforms, giving me much needed time to reorganize my business and rebuild.