Free Apple Developer accounts only allow apps to run for 7 days. After that, the app will crash, and you will need to re-install it using Sideloadly or AltStore.
IPA files are commonly used by developers to test and distribute apps outside of the App Store, but they can also be used by users to install apps on their devices without having to go through the App Store.
Short installation checklist (for post footer):
Using a modified version of the app is strictly prohibited by Facebook’s (Meta’s) Terms of Service. The official stance of security experts is that using tweaks that modify the behavior of social media platforms like Facebook or Snapchat carries a high risk of getting your account . Facebook has sophisticated server-side checks to detect if you are using an altered client. If the app sends a packet of data that indicates an ad was blocked or a read receipt was suppressed, Facebook’s automation may flag your account for suspicious activity, leading to a lockout.
In this guide, we will break down what a Messenger IPA file is, where to find specialized versions like "Messenger++" or "Flow for Messenger," and how to safely install them on your iPhone or iPad. What is a Messenger IPA File?
The Complete Guide to Messenger IPA Files: Sideloading, Security, and Tweaks
Advanced users often look for modified IPA files (like Messenger++) that inject tweaks to customize the user interface, disable read receipts, or bypass certain app restrictions.
What and iOS version are you currently running?