Be aware of the legal and compliance implications of distributing or modifying apps. Facebook's terms of service, for example, dictate how Messenger can be used and distributed.

Because Apple restricts sideloading, you cannot simply "open" an IPA file like a document. You must use a signing tool to verify the app for your device. 1. Using AltStore or Sideloadly (Computer Required)

: Sideloaded IPAs usually require a developer certificate. If you use a free Apple ID, the app will expire every 7 days and need to be refreshed.

While functional, sourcing a Messenger IPA from third-party repositories carries inherent risks. Unlike the App Store version, which is vetted by Apple, a modified IPA could theoretically contain injected malicious code or spyware. Furthermore,

Understanding the Messenger IPA File: Features, Sideloading, and Safety