Calculate. Comment. Correct. CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly structured. CalcTape makes the arithmetic process visible - you can generate intermediate results and subsequently correct or change all numbers and operations. - Input a long list of values to be calculated and never lose the overview - just like with an adding machine / calculator with paper tape. - Insert comments and notes into your calculations anywhere. - You can use intermediate results to structure your calculation. - Use it for Money, Tax and any other percentage calculation easily. - If you should later change digits or whole mathematical expressions, then the complete calculation is automatically updated. - Insert new lines or delete lines inside of your calculations and see the updated results immediately. - Save your calculations into files. - Open the files later to change the calculations. - Define your own functions and buttons. - Share your complete calculation via e-mail, Airdrop and more. - Print your calculation. - Choose your favorite design. - iCloud support (Mac OS 10.10 and higher). Sync your calculations with iPhone and iPad easily. - CalcTape masters the four basic arithmetical operations, exponentials, percentage calculations and much more. CalcTape, more than a calculator. FAQ: - Start a new calculation on the same sheet by simply tapping the "=" key twice. - Right click a button to assign another existing function or to create a user function for it. - If you accidentally hit "AC" you can use "Undo" to get your calculation back.