HK Transit Card Balance Reader

When you are traveling Hong Kong, Octopus card is necessary. This card is very convenient but it is prepaid card. So, you have to check the balance to avoid embarrassing situation on getting bus or subway. (Notice, Our app just read the balance of the card. Octopus company are not related to us) How to use - Tap your card on back of your phone - You can see the basic information of card