Finding apps for iOS 9.3.5 in 2026 can be tricky since most major apps now require much newer versions. However, many "legacy" versions of popular apps are still accessible if you have previously "purchased" them on your Apple ID.
These apps often require you to have previously "purchased" them on your Apple ID using a newer device before they appear as downloadable legacy versions on your older hardware. ios 9.3.5 compatible apps list
The biggest challenge? The App Store’s "Requires iOS 10/11/12/13" error message. However, Apple allows users to download the of an app. This means if you previously downloaded an app, or if a developer left an old binary online, you can still get it. Finding apps for iOS 9