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

Now brought to you by Houghton Mifflin Harcourt
Bug fixes and optimizations

Minor bug fixes.

Updated Privacy Policy

Now available on iPhone and iPod.

-  Fixed issue with 4-digit numbers not displaying correctly when moved to the inside table.
-  Fixed level-specific Help text.

Bug Fixes and Enhancements

Enhancements and improvements