KOE

If you are iPhone and iPad owner,you now can download KOE for free from Apple Store. The application is supporting different languages: English, Japanese. It weighs in at only 4.6 MB to download. The new KOE app version 1.3 has been updated on 2014-08-28. For ensuring consistency with the device you should take into account the following app compatibility information: Requires iOS 6.1 or later. Compatible with iPhone, iPad 2 Wi-Fi + 3G, iPad Wi-Fi + Cellular (3rd generation), iPad Wi-Fi + Cellular (4th generation), iPad mini Wi-Fi + Cellular, iPad Air Wi-Fi + Cellular, and iPad mini with Retina display Wi-Fi + Cellular. This app is optimized for iPhone 5.
Bottom Line: For more information about KOE check developer Keisuke Tatsumi`s website : http://koe-app.com