I've released an update that now provides compatibility with iOS 7. The update is iOS 7 only so can only be downloaded to devices that have been updated with iOS 7. However, in addition to the iOS 7 support, there are a number of additional enhancements and fixes in this update:
- Updated look and feel of app to conform to iOS 7 standards.
- Fixed issue which sometimes caused the word definition popups to not appear.
- Increased the size of the "X" used to close the word definition popup.
- Some miscellaneous fixes/updates.
The new version of the app is now available on the Apple App Store and I recommend that all current users who have iOS 7 on their device download the upgrade (it is a free upgrade for existing users of the app).