Silent Noise app use for scan QR code and check-in, Check-out library and pay the amount as library use as per time spent in the library.
Some other Features-
1/ Add Money in Wallet
2/ Library scan QR code, Check-in and Check-out and amount deducted from wallet
3/ Scan cafe QR code and make the payment and purchase the food from a cafe
For a new user: enter Promo code: NEW50 and get 50 amount in your wallet as a free user.