To understand why the IPA you want no longer works, you need to understand software depreciation:
Use a tool like Filza File Manager (from Cydia) or iFunBox on a computer to transfer the downloaded .ipa file to your iOS device. Install: Tap the .ipa file in Filza and choose "Install." Features of the Older Messenger Version
Search online for Messenger IPA for iOS 9.3.5 or Messenger 150.0 IPA . messenger ipa ios 935 full
Essentially, the user is looking for a way to install a functional version of Facebook Messenger on their older iOS 9.3.5 device.
Note: Free Apple ID signatures expire every 7 days. You will need to reconnect your device to the computer and hit "Start" in Sideloadly every week to re-verify the app, though your data will remain intact. To understand why the IPA you want no
Drag and drop your downloaded file into the IPA icon slot in Sideloadly. Enter your Apple ID email address in the designated field.
Q: Do I need to jailbreak my device to install Messenger IPA? A: No, you don't need to jailbreak your device to install Messenger IPA using Cydia Impactor or AltStore. Note: Free Apple ID signatures expire every 7 days
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Before searching for external IPAs, try the official "last compatible version" feature provided by Apple. This is often the safest way to get a "full" functional version without third-party files.