If the file is only a few MBs, it's likely a virus, not the full game.
: Some developers on platforms like itch.io have created unofficial APK versions of the Halloween content. fnaf 4 halloween edition download android free
: The Halloween Edition (featuring reskins like Jack-O-Bonnie and Nightmare Mangle) was exclusive to the PC version and was never included in the mobile or console ports. If the file is only a few MBs,
The official was released as a free standalone content add-on for Windows but was never officially released as a separate app for Android. it's likely a virus