There is no separate "Halloween Edition" icon on the Play Store anymore. The content is baked into the standard FNAF 4. If a website offers a standalone APK called "FNAF 4 Halloween Edition Mod Unlimited Money," run away. That is not official; that is a trap.
Caution : These are and may contain security risks; always verify files before downloading APKs from unofficial sources. There is no separate "Halloween Edition" icon on