If Instagram isn't in your "Purchased" list, you won't see the cloud icon. To fix this, use a newer iPhone or iPad (running iOS 15+) or a computer with an older version of iTunes that still has the App Store. Log into your on the newer device. Download Instagram. This "links" the app to your account.

Return to your iOS 9.3.5 device, go to , and the cloud icon will now be available. 3. Alternative: Instagram IPA & Sideloading

The safest way to download Instagram is through Apple's own servers. If you have previously "purchased" (downloaded) Instagram on your Apple ID using a newer device, you can trigger a legacy download on your older hardware. Open the App Store on your iOS 9.3.5 device. Step 2: Tap on the Purchased tab at the bottom.

How to Download Instagram on iOS 9.3.5: The Ultimate Legacy Guide