There are three main ways to get Instagram running on legacy hardware. The most reliable and secure method is through Apple’s official "Purchased" section.
You cannot simply drag and drop an IPA file onto an iPhone or iPad. You need a desktop tool to sign the app with your Apple ID and push it to the device. Two of the most reliable free tools for iOS 9.3.5 are and AltServer (with AltDeploy) . instagram ipa ios 93 5 download free
Modified Instagram IPAs often violate platform Terms of Service. Using them can result in your account being flagged or permanently banned by Instagram's security algorithms. There are three main ways to get Instagram