Do use iOS 9.3.5 for:
Apple’s iOS 9.3.5, released in August 2016, represents a critical inflection point in the history of mobile operating systems. As the final stable version for several legacy devices—most notably the iPad 2, iPhone 4s, and the original iPad mini—this operating system remains in active use by a niche but persistent user base. This paper examines the current state of the AppStore ecosystem on iOS 9.3.5, analyzing the technical, security, and user-experience challenges that arise when a modern digital storefront attempts to serve a decade-old operating system. Through a review of Apple’s version-deprecation policies, certificate management, and legacy app compatibility, this study concludes that while the AppStore on iOS 9.3.5 remains technically functional, it exists in a state of “managed decay,” requiring deliberate workarounds that pose significant security risks and usability barriers. appstore ios 9.3.5
If you have an older Apple ID that was active between 2011 and 2017, you likely own a treasure trove of classic apps that are no longer in the App Store for new users. Do use iOS 9
: Puffin Web Browser often performs faster than the outdated Safari on older hardware. and legacy app compatibility