This app is Cat Calculator application. Cat shake head to the touched direction. It’s so cute. [About Cup cat sound] 0 -> C 00 -> D . -> E 1 -> F 2 -> G 3 -> A 4 -> B 5 -> C 6 -> D 7 -> E 8 -> F 9 -> G [About Calculator App] This app is calculated from the top. (Prioritization ON and OFF of multiplication division came to be available from setting from Ver 3.3.) ・ When "Priority on × and ÷" is set to OFF Example: 1 + 2 x 3 = 9 ・ When "Priority on × and ÷" is set to ON (default setting) Example: 1 + 2 x 3 = 7 · Touch the screen and move your finger to turn the cat in that direction. · You can delete the end of the displayed value by pressing Del button. · Press the left arrow button above the Del button to return to the previous calculation result. · Touch the copy button to copy the displayed value to the clipboard. · Touch the paste button to display the number copied to the clipboard on the screen. · Up to 13 digits can be calculated. · When it becomes 13 digits or more at the decimal point, round the end.