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I kept guessing deployment targets for my iOS apps... How many people use iOS 18+? How about SwiftUI? Or SwiftData? It was a real pain.
To fix that, I made iOS compatibility: A simple browser tool that shows real iOS version and framework market share. No guessing. Just pick the iOS versions you want to support and see usage data plus API availability for things like SwiftData and CloudKit.
Make data driven deployment decisions fast. Choose your minimum iOS version and avoid breaking features for users on older devices.