With all the nostalgia of the early App Store and iOS SDK days, Frederik Riedel tweeted about his experience developing iRedstone:

When I created iRedstone, I had no idea what object oriented programming was. I had no idea what a ViewController was. It was all in one UIView. But it worked. You don’t have to be an engineer to create apps.

— frederik 🧗🏼‍♂️ (@frederikRiedel) July 10, 2018

After he tweeted that, other developers started quoting it, and sharing their experiences. Frederik has compiled a great collection of them over on his blog.