Sweetie Calculator is a free Android calculator app developed by Sweetie. The app features a large keyboard that allows users to easily input expressions. It also comes with cute background images that users can choose from. Users can switch on/off the vibration when tapping the buttons and even change the vibration intensity. The app supports percentage calculation and displays the formula for each calculation process.

Additionally, the app supports arithmetic operations, 00 input, comma-separated display, and copy to clipboard of calculation results by long pressing the calculation result. Users can erase one character by tapping the delete key or erase everything by tapping the clear key. The app also supports tablet displays and allows users to choose whether or not to include commas when copying.

Overall, Sweetie Calculator is perfect for those who want a cute and easy-to-use calculator with basic functionality. It is recommended for users who frequently use calculators, prefer cute designs, and need to see the calculation process in the middle of the formula.