PROBLEM
- Complicated to finish a record by an app: every time when you purchase, you have to unlock the phone, slide to the icon, click it, categorize the record, and the type or capture and wait for a moment, and finally lock the phone;
- Easily forget to record when the phone is not side of hands;
- Speciffic situation like friends borrow money or some very urgent situations;
- Data record action is always later than the payment.
INPUT FEATURE
Depending on the expense level, you can customize the mapping function, namely define the angle of the wallet with the value of the bill. For instance, if you assign 20 Euro to 180 grade, then 90 grade is automatically counted as 10 Euro.
TAG FEATURE
Nathan Guo 