Excel app crashes on devices with iOS 9 beta 3. The app opens but it crashes when I want to edit a worksheet. I uninstalled and then reinstalled the app but that did not solve the problem. The crash happens on iPad Air 2, iPhone 6 and 6 Plus.
Update: Microsoft released v1.12 on Aug 12 and it solved the problem. The new version works with iOS 9 beta 5 without any problems.