Minimum sensible button size on iPhone

Question

I\'m designing an iPhone app that features a rather large set of onscreen rounded rect buttons. Given finger-based touchscreen UI, what do you think would be the smallest se

Answer 1

According to HIG it should be at least 44pt x 44pt:

Provide ample touch targets for interactive elements. Try to maintain a minimum tappable area of 44pt x 44pt for all controls.

https://developer.apple.com/design/human-interface-guidelines/ios/visual-design/adaptivity-and-layout/