how did you use Opus to build the apps? I tried using Claude Code ~6 months ago to build an iOS app and I was not that impressed with the results, especially compared to this blog post, where the apps look polished and very professional.

My biggest issue was limitations around how Claude Code could change Xcode settings and verify design elements in the simulator.

Opus 4.5 got released ~3 months ago - Claude Code started using it automatically (for me anyway) - I also tried iOS prior to that and had a similar experience to you