This app was mentioned in 2 comments, with an average of 1.50 upvotes
Yes, it is a Japanese only one (and likely because 7 had only just come out in English on 3ds)
Here are the play store and app store links https://play.google.com/store/apps/details?id=com.square_enix.android_googleplay.dq7j&hl=ja&gl=US
It's actually already out in Japan. Came out on September 17 2015 and the 3DS version of VIII should (according to square) be the exact same version as the one already available on smart phones. Google Play VII