DRSV, LLC.

 iPhone/iPad：  https://apps.apple.com/us/developer/drsv-llc/id894887152


 Android：  https://play.google.com/store/apps/developer?id=DRSV,+LLC.


 Privacypolicy：  https://drsv.jp/privacypolicy


 Office： 2-49-7-1F,Minamiikebukuro,Toshima-Ku,Tokyo,171-0022,Japan


 Contact： info@drsv.jp