This is very tiny APP tool which can help to check balance of your MTR card, include Hong Kong Octopus and Shen Zhen Tong. Main features: check banlance of Hong Kong MTR Octopus and Shen Zhen Tong, display more information of Nfc-F tag ... Features: 1. Check balance and last ten transaction of MTR ShenZhenTong 2. Detailed transaction information such as date/time, change value, terminal number of MTR ShenZhenTong 3. Check balance of MTR Octopus 4. Generate transaction information of MTR Octopus