- Changes necessitated by iOS 13 & 14
- Removed links to Facebook and Twitter
- Various GUI changes and enhancements
- Some code simplification

This app has been updated by Apple to display the Apple Watch app icon.

- Updated to run under iOS 11.
- Corrected scroll view issue on information view.
- Updated deprecated alert displays.

- Changes to accommodate iOS 9, mostly font changes.
- Some GUI tweaks.

- Revised GUI with newly designed objects.
- Added links to Facebook and Twitter.
- New icon.

- Updated for iOS 8
- Minor GUI changes

- Redesigned and rewritten for iOS 7.
- Minor bug fixes.

- Streamlined source code for better performance.

- GUI tweaks for iPhone 5.

- To simplify moving between the two methods of data entry, we have added buttons for "Keypad" and "Slider" in the lower right-hand corner of the data entry views.

- On the 'Extended Correlation' view, we added a reminder that a data entry of zero is a number, but a blank data entry is an 'n/a' that removes the entry from the regression computation.

- Never mind. Removed upside-down portrait mode that caused display issues when editing.

- Modified syntax of iTunes App Store link.

- Added ability to create values with zero to three decimal place precision in the 'Keypad Input' screen and changed the way that numbers are assigned plus or minus signs.

- Extended the number of data entries per column from 10 to 12 in the 'Keypad Input' screen.

- In 'Keypad Input', removing a data entry with the 'n/a' description is accomplished by making the entry blank.

- Improved floating point precision of all calculations from single to double.

- Minor GUI changes.

- Added new page for 'keypad' data entry beyond the -1000 to +1000 numerical limits of the 'slider' data entry
- Various display modifications

- Streamlined source code for faster load time
- Added ability to move backward when entering data
- Enlarged buttons slightly for better touch control
- Fixed code that prevented columns B or C with 'n/a' in first row from computing correlations
- Minor GUI changes

- Added link on flip side view to MSYapps in iTunes App Store