Fix Browser vs QI Calculator Usage & Stats

1. A calculator that fully conforms to handwriting habits, so you no longer need to master different input methods for calculating data 2. There may be some imperfections, but everyone can provide valuable feedback on the premise of promising not to require fees. 3. Pay attention to the use of the cursor 4. Terms of Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 5.Privacy Policy:http://www.iphonesir.com/privacypolicy.html