Yeti re-released the on July 4, 2017 in Japan on iOS the horror visual novel game the Root Double -Before Crime * After Days-. You can find the game as “Root Double -Before Crime * After Days- Smart Edition” in the Japan Apple AppStore for 2800 Yen (with tax).
This game is the complete port version of the 2013 released PlayStation 3 game which later in 2015 re-released on PC. (The game by the way is available in English since 2016).
The new iOS version is focusing on the main story with the main hero characters. It is a perfect chance for those who wants to play with the game but cheaper than the PC / PS3 version.