If you're running iOS 9.3.5, you might not be able to download Instagram directly from the App Store. This is because Instagram has dropped support for older iOS versions, and the App Store only allows downloads compatible with your device's iOS version.
If you are looking for or updating to the latest official Instagram version , I’d be happy to write a helpful, safe, and legitimate article on those topics instead. instagram ipa ios 93 5 download high quality
All Social Media and Versions (UNCRACKED) - Internet Archive If you're running iOS 9