Challenging Apps

Forklift Challenge is a competitive counterbalance truck racing game, where players pickup and drop off cargo in a harbor, racing against the clock. The material handling game illustrates and...

Think you're a World War II expert?

Test your knowledge of World War II history in this fun and exciting lite version of a history quiz written by a college history professor. Die-hard...

Think you're a Civil War expert?

Test your knowledge of Civil War history in the lite version of this fun, fast-paced and exciting history quiz written by a college history professor. ...

Practice math skills and learn about animals around the barn!

* Addition & Subtraction Edition is perfect for grades K-3 but still challenging and fun for everyone, even adults!
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[ NEW SPORTS CAR AVAILABLE: Prepare yourself for an uncompromising roadster that merges elegant design, high-end performance and trend-setting innovation. Add the Porsche Boxster S to your...

Please note that this Lite Version only contains 20 of the States and Capitals. For all 50 States and Capitals please upgrade to the Full Version.

States and Capitals Challenge Lite –...

Three brand new In-App purchase songs you can buy from your iPhone or iPad for $0.99 each:

Beautiful - Christina Aguilera
Girl On Fire - Alicia Keys
Five For Fighting - Superman...

Word game lovers will love the simple concept of Word Challenge. Players agree that it is one of the best word matching games for the iPhone/iPad! It is a game made up of two stages.

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Think you're an expert on the American Revolution?

Test your knowledge of Revolutionary history in the lite version of this fun, fast-paced and exciting history quiz written by a college...

Now the Vi community can manage the Challenge Timeline, upload PROJECT 10™ videos, and enter to win—all on the go! Plus, enroll, shop and participate in exciting Group Offers. Available in new...