Worst Company Ever
The "Fifth" edition is the one that no longer works with iOS 9 . . . not to be confused with the "5th" edition, the one you have to buy AGAIN for full price if you want a working app under iOS9.
This companys policy is to make you buy the app for full price every time Apple comes out with a new version of iOS. Ive owned paper copies of the American Heritage Dictionary since 1969, but after having to buy this app for $24.99 TWICE, I will never own another copy of their dictionary. Its too bad they chose greed over customer service.
Abax378 about
American Heritage Dictionary, 5th Edition