OLTA

The OLTA is now available as a free download on Apple Store for both iPhone and iPad owners.The application is supporting different languages: English, Chinese. It weighs in at only 14.7 MB to download. The new OLTA app version 1.0.3 has been updated on 2014-04-01. For ensuring consistency with the device you should take into account the following app compatibility information: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.
Bottom Line: For more information about OLTA check developer Ka Shing HO`s website : http://www.olta.org.hk