Ver 2.1
-Add Low, High and Low/High Numbers.
Ver 2.5
-Can Change the sum Limits.
Ver 2.6
-Better layout that work from 3.7 to 11 inches screen.
- A different keyboard to work to be more compatible on different devices.
Ver 2.8
-The Separations of the number was changed from "-" to ":".
-Clicking the Combination Box copied all the combinations to the clipboard.
Ver 3.0
-Keyboard and Operation works in any Android Smartphone.