The most stable way to use iFile on iOS 9.3.5 is to install it via Cydia.
Because iOS 9.3.5 is an older firmware, most users jailbreak it to regain modern functionality. ifile ipa ios 935 work
iFile "works" in the sense that it doesn't crash immediately, but it is not reliable for daily file management on iOS 9.3.5. The most stable way to use iFile on iOS 9
: Manually edit .plist configurations to trick legacy applications into working past their expiration dates. Direct Method Comparison: Jailbreak vs. No Jailbreak : Manually edit
If jailbroken
The safest and most reliable way to get iFile on iOS 9.3.5 is directly through Cydia rather than hunting down a sketchy standalone .ipa file online. Launch on your jailbroken device. Tap the Search tab in the bottom right corner. Type iFile into the search bar.
For jailbreak veterans, is the ultimate nostalgia trip. Long before Apple granted limited filesystem access via the Files app, iFile was the undisputed king of iOS file management. It gave users complete root access to modify system files, install custom themes, hack offline game saves, and delete stubborn junk data.