I built an app for iOS and android recently with a combination of Claude, and cursor. I started off by drawing Claude a picture of what I wanted the app to look like, and telling it to give me the skeleton of an iOS app. (It did a surprisingly good job)

Then I switched to cursor and iterated with it on making it work. Once I had the iOS app running, I got cursor to create an android app that looked and functioned the same.

Super interesting experience - took a couple of days of iterating here and there, helped to have them in git repos for when cursor went too far off piste.

Both apps work, they look pretty much like my original picture.. and the code is absolute trash. I don’t know swift, or particularly kotlin, but the code is horrendous. If you wanted to take them any further, you’d rewrite it from scratch.

This was. Rating combinations of Claude 3.7, 4.0 thinking, Gemini 2.5, and chatgpt 4. (Switching between agents when one was getting stuck.)

Observationally, they all had a much harder time with android and rarely produced anything that didn’t need fixing to build.

Great for rapid prototyping in a stack I don’t know, but 100% tech debt.