Index ported Shin Megami Tensei to iOS devices, and the game is already available in the japanese App Store.
This is a conversion of the Game Boy Advance Shin Megami Tensei released in 2003, so you will play the game in a GBA sized window with a virtual Game Boy control pad.
The Game also offers us some additions in this iOS version, according to Siliconera:
"Visionary is a newly added short story that fleshes out the game’s characters. Players can also uses a demon compendium and listen to the game’s songs using a built in music player."
The price for Shin Megami Tensei is 1,200 yen ($15).
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