Your specific jailbreak tool will depend on your device model:
Options I can produce now:
Drag and drop your downloaded Instagram IPA file into the large IPA icon box inside Sideloadly.
Open AltStore on the device and use the native file manager to install your Instagram IPA. Method 3: Cydia / AppSync Unified (Jailbreak Required)
Your specific jailbreak tool will depend on your device model:
Options I can produce now:
Drag and drop your downloaded Instagram IPA file into the large IPA icon box inside Sideloadly.
Open AltStore on the device and use the native file manager to install your Instagram IPA. Method 3: Cydia / AppSync Unified (Jailbreak Required)