From the game's Steam Greenlight page
iOS version now available on the App Store
JUNE 24 - XINORO
We are proud to announce that the iOS version of Miko Gakkou: Second Year is now available on the App Store, supporting iPhone, iPad and iPod Touch devices, and the iCade controller.
For our summer launch campaign, you can get our game for only $0.99 until July 7! Get your copy now and let's mikomiko today!
This game is brought to you thanks to our overseas publishing partner Cubic Penguin.
Dunno what its base price is meant to be, though. It's also available through the PlayStation Mobile platform, allowing for play on select Android devices, as well as the PS Vita. Note that clicking the App Store link in a browser brought me to a Japanese-language page, but opening it in iTunes therefrom got me an English page.
*where you can view gameplay trailers, as well