For those playing "portably" on Android or high-powered handheld PCs (like the Steam Deck), the undub patch is compatible with or its successors like Panda3DS .
Playing on actual hardware (like a New 3DS) may occasionally result in slight audio delays (1.5–2 seconds) when text first appears due to the way LayeredFS streams assets. How to Install the SMT IV Apocalypse Undub on 3DS shin megami tensei iv apocalypse undub 3ds portable
Modern versions of the patch use LayeredFS , allowing you to keep your original game files untouched while the custom firmware (CFW) loads the Japanese audio files on top. For those playing "portably" on Android or high-powered