New Kids App called "I Practice Plus and Minus"

Proctele's new App has been released. It's called "I Practice Plus and Minus" and is written for the iPhone and iPod touch. It lets kids practice their addition and subtraction skills. My 8-year old son likes the game, so it must be pretty good.
You can adjust the difficulty by allowing larger terms and results. There's a settings screen for that. The default setting is for the term to be up to 9 and the result to be up to 20. 
The application has different names in the localized App Stores, as follows:

• English:  I Practice Plus and Minus
• French: Je pratique plus et moins
• German: Ich Üben Plus und Minus
• Swedish: Jag övar Plus och Minus
• Dutch: Ik Oefen Plus en Min

There's a built-in help in all the languages.

To make the game more versatile, it's possible to have terms and results as large as 99,998. Sums of that size can be a challenge even to good mental arithmeticians.
Here's a YouTube demo: http://www.youtube.com/watch?v=Qvg7qkvI0YQ