For users on modern iOS (iOS 15+), the most common method to install unofficial IPAs is through sideloading tools like or Sideloadly . These tools use your free Apple ID to create a "developer certificate," which allows you to sign and install an IPA file onto your device, all without jailbreaking.

Launch Sideloadly; ensure your connected iOS device is detected in the top dropdown menu.

Drag and drop the downloaded Facebook IPA file into the Sideloadly interface.

This is the safest source for pure, unmodified IPAs. Enthusiasts upload "bit-for-bit" copies of apps they backed up via iTunes.

Modern Facebook updates include resource-heavy features like background tracking, auto-playing high-definition videos, and complex algorithms. On older hardware, this results in stuttering, app crashes, and freezing. Older versions of the app run smoothly because they were optimized for lower RAM and older processors. 3. Reduced Battery Consumption and Storage Space

Jailbreaking is the process of removing software restrictions imposed by iOS. It's like unlocking the "root" of the device to install apps, tweaks, and extensions not approved by Apple. It gives users unprecedented control over their device, but this power comes with significant risks (detailed later). Many methods for installing old IPAs have historically required a jailbroken device.

Note: This requires technical skill and a list of historical version IDs.

Before diving into the IPA rabbit hole, consider these:

Let’s assume you have an iPhone 7 on iOS 15.8 and want a fast, pre-Reels experience.

Drag and drop the Facebook IPA file into the in Sideloadly.