It is available for iPhone and iPad on the Apple App Store.
Simogo uses a unique 2D-layered art style that feels like a grim, interactive pop-up book. The sound design is minimalist but chilling, using crunching snow and distant shrieks to build dread. Year Walk Free Download
It was also released on the Nintendo eShop (though the 3DS/Wii U eShops have since closed for new purchases). It is available for iPhone and iPad on the Apple App Store