updated , bugs corrected

update for 16.1 minor bugs fixed

update for iOS 15.4, undo added, minor bug fixed.

update for iOS 13 and dark mode

update for iOS 12.1

-Data Export feature added, measured data are exported as txt file, ready to print or to input as cells to Numbers  or excel software ,a useful feature for archiving the data for follow up or Reasearch.
-Software Improvements for better accuracy of Reimer’s and Congruity Index.
- Better geometry  developed for eliminating even further errors due to possible positional errors of patient’s  X-ray or inclinations .