This happened with me as well. After spending lots of money and time building a complex tech I failed miserably. So on a boring day I wrote some crappy android

This happened with me as well. After spending lots of money and time building a complex tech I failed miserably. So on a boring day I wrote some crappy android app. I published it and went to sleep. A week passed and I realized that the app was in first 10 for a particular section in India. I put Admob ads and suddenly revenue started zooming. My app will not scale beyond a point. It is unfundable. It is really crappy technology (basically a static website put as a webview) but it gets hundreds of installs every day and touching "thank you emails" every day.