Getting to run on iOS 9.3.5 can be tricky because modern versions of the game now require iOS 13.0 or later . However, if you are using an older device like an iPad 2 or iPhone 4s , you can still download the "last compatible version" through official Apple channels. Official Method: Downloading via "Purchased" History
Unlike many modern titles, classic Subway Surfers is excellent for offline gaming A Note on Safety: Subway Surfers Ios 9.3.5 Download
This is the safest, most reliable method. Apple introduced a feature that allows users on older iOS versions to download the most recent version of an app that is compatible with their device. Getting to run on iOS 9