The ability to run applications on older iPad devices, specifically those operating on the iOS 9.3.5 operating system, hinges on compatibility. This refers to the characteristic of a software application to function correctly and without errors within the constraints of that specific operating system. As an illustration, an application developed using newer programming interfaces and libraries might be incompatible with the older iOS 9.3.5, leading to installation or execution failure.
Maintaining the functionality of these older devices holds significance for several reasons. It allows users to continue utilizing hardware they already possess, extending the lifespan of these products and reducing electronic waste. Moreover, certain applications crucial for specific workflows or historical data access may only be available in versions compatible with this older operating system. This compatibility also preserves access to legacy content and functionalities that may no longer be supported on newer platforms.