Ratings & Reviews performance provides an overview of what users think of your app. Here are the key metrics to help you identify how your app is rated by users and how successful is your review management strategy.
4.7With MCalc, you can get the XOR, SUM, DSC(Data SumCheck), 10 kinds of CRC8, 23 kinds of CRC16 of HEX datas super easily. All you have to do is paste the hex datas, and click calculate.
![M Keys [ACR122U] - Mifare Keys Generator & Manager](https://play-lh.googleusercontent.com/vxSp7hpDuElPxpkuwiI-rDS2U0RGRSpZAn8PwnXyN_6A6CxO1O8B7NxwwD2ETRR4iyOO=s180-rw)
