I’m not a mobile app developer. The only programming I did was a semester of Java at Uni, however, for over eight years I have worked with and managed developers and programmers developing some funky enterprise software.
I’ve often wondered how long it takes to build an app for a mobile device, whether it be for iOS or Andriod. I came across this info-graphic that attempts to explain how long it takes. There will probably be programmers who would probably beg to differ about the time frames, however the top and lower level column headings, give a great insight into the design process. I hope you find this useful as I did.