Shows $15 more than actual balance. Tried with elder cards, issued in October 2017. Works good for adult, elder, child cards issued in September 2017. Possibly due to octopus negative balance policy change in this October.
need update unable to use in galaxy s iii mini (i8190n), maybe need to update driver support dor nfc module
Worse than the official one Only shows amount balance, no transactions record
Add option to support octopus card that has new convenience limit.