What's New
This app has been updated by Apple to display the Apple Watch app icon.
• added 18 new levels for a total of 120
• updated some beginning levels to make them easier
• bug fixes
App Description
A simple iOS puzzle game that is devilishly fun to play. Just add positive and negative numbered blocks to one another to make all zeros.
• Easy to play: swipe blocks left, right, up, or down
• Lots to do: 120 levels and counting...
• Never the same: new levels bring new kinds of blocks
App Changes
- December 20, 2014 Initial release
- January 17, 2015 New version 1.1
- March 14, 2016 Price decrease: $0.99 -> FREE!
- June 30, 2016 Price increase: FREE! -> $0.99
- July 16, 2016 Price decrease: $0.99 -> FREE!
- July 26, 2016 Price increase: FREE! -> $0.99
- August 14, 2016 Price decrease: $0.99 -> FREE!
- November 19, 2016 Price increase: FREE! -> $0.99
- December 03, 2016 Price decrease: $0.99 -> FREE!
- December 11, 2016 Price increase: FREE! -> $0.99
- December 26, 2016 Price decrease: $0.99 -> FREE!
- December 28, 2016 Price increase: FREE! -> $0.99
- June 14, 2019 Price decrease: $0.99 -> FREE!
- June 16, 2019 Price decrease: $0.99 -> FREE!
- September 24, 2019 Price increase: FREE! -> $0.99
- October 06, 2019 Price decrease: $0.99 -> FREE!
- October 21, 2019 Price increase: FREE! -> $0.99
- October 28, 2019 Price decrease: $0.99 -> FREE!
- November 11, 2019 Price increase: FREE! -> $0.99
- November 18, 2019 Price decrease: $0.99 -> FREE!
- December 02, 2019 Price increase: FREE! -> $0.99
- December 09, 2019 Price decrease: $0.99 -> FREE!
- December 17, 2019 Price increase: FREE! -> $0.99
- December 24, 2019 Price decrease: $0.99 -> FREE!
- July 14, 2020 Price increase: FREE! -> $0.99
- October 22, 2020 Price decrease: $0.99 -> FREE!
- October 05, 2021 Price increase: FREE! -> $0.99
- October 14, 2021 Price decrease: $0.99 -> FREE!