Adding Tape II adding machine with virtual tape

Tired of adding numbers twice just to be sure you are correct? Problem solved. 

Adding Tape is an adding machine with a virtual "tape." 

Note: Adding Tape is modeled after an adding machine, not a calculator. The behavior of each is different.

Add and subtract numbers up to five decimal places, keeps a running total and a virtual "tape." 

- Undo an unlimited number of times 
- Virtual tape visible & scrollable while adding or switch to edit screen to view full screen 
- selecting rows in edit mode adds virtual checkmarks to aid in checking your work 
- Edit mode allows you to delete individual rows 
- Remembers tape between launches 
- Touch a number in the tape to copy

Optional pro features:
- Add, subtract, multiply and divide
- Key sound or mute option 
- No advertisements: 53% larger tape display area
- Six different button sounds to select 
- Optional decimal behavior: stays in fixed location as you enter numbers or traditional hit decimal key 
- Alternate large Zero key or small '0' and '00' keys 
- Printing support
- Email tape (option to format as plain text or HTML) 
- Save multiple tapes 
- Option: add line numbers to tape 
- Option: set number of Clear Entry touches before tape is cleared