This app reads the remaining balance from octopus stored value card. Helpful if you always travel by mtr, or while you are queuing for bus or minibus. User may log the balance read by the app for later reference.1. You need an Android device which support NFC (such as Nexus S, Galaxy Nexus, Nexus 4 …)2. The very old octopus cards are not supported3. This app can only perform read operation for the balance value from the open area of the card.4. This app CANNOT and is IMPOSSIBLE to perform any operations which need authentication and authorization, nor any write operations.5. We are not responsible for any loss or damage caused by this app.Felica Octopus rfid transport card 香港 交通 巴士 嘟咭 拍咭 餘額 .