A mobile port for FNaF World was a console port of the original FNaF World, released for Android on January 12, 2017, and was removed the following day. There was an iOS port planned, but it was never released due to FNaF World's future updates being cancelled. The only way to get the Android version is to look for an .apk file of it.
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“Welcome back to FNaF World, the game that almost single handily destroyed the FNaF franchise! But don't let that discourage you; there are still a lot of adventure to be had here! But it's not all fun and games. There is an important task that you must accomplish. I'll tell you more about that later. For now, do some exploring! Fight monsters, collect items, and find new allies! Come find me when you are ready to hear more!”
“There, are you happy now? Enjoying the freakshow? Oogie, boogie, boogie! I'm so creepy in 8-bit!”
— 8-Bit Fredbear,
“So, you know how all of this works, right? Look at the tree behind me. That tree is a glitch portal. It will take you to a deeper level under the world. It's like a shortcut. Go through it, then find your way to the correct exit inside. Always be looking for more glitched objects. You won't be able to explore the whole map without them!”
“Oogie, boogie, boogie! It's scary 8-bit Fredbear again! When someone visits my house and I want them to go away, I just answer the door like this. I'm like BOO, and they're like WHOA, and I'm like YEAH!”
— 8-Bit Fredbear,
While most of the games of the franchise had between a few days and about 2 months to have a mobile version, the mobile version of FNaF World released almost a year after the release of the PC version.
After the port's release, many fans noticed how Scott disliked the game foretold in dialogue. After that, the game was removed from mobile ports, saying Scott will not touch the game again, leading to the cancellation of the iOS version and Update 3 of FNaF World.
Some attacks do not work sometimes.
Enemies and animatronics disappear sometimes even if they're not dead.
The main menu music doesn't play most the time.
The victory theme still plays after a battle, including when running is successful.
If the player runs away from a challenger, that challenger is added in the party even if it was not defeated.
Save file data appears to delete itself sometimes if the game is closed in a certain way.
The game will crash on random occasions.
Under extremely rare circumstances, if an enemy and a new challenger is encountered at the same time as a boss fight, the first normal encounter will not occur, and the boss fight will happen but the animatronics are invisible, cannot attack, and can still be attacked. If the player wins this fight through the use of Bytes and/or Chips, the challenger battle will occur but all damage taken during the boss fight will be distributed at the start of the challenger battle. The challenger battle will let the player fight like normal, with all the Chips and Bytes and attacks, but with much lower health from the boss fight. Winning this fight will grant the player the challenger like normal and the boss defeated. Nothing from that point onward is changed.