Frisky Mongoose

It’s the last free app of February, and we end the month on a high note with an addictive puzzle app from Grabarchuk Puzzles.

LetsTans is a unique take on the classic Tangrams ideology. The game contains three play modes and 210 original challenges. The Classic mode will have you filling in an empty shape with various colored pieces (normally, there’s only one configuration available to fill in the shape, meaning that a bit of challenge here is likely), while Replica mode has you picking out seven different colored Tangram pieces that you think can come together to form the proposed white shape. Arcade mode rounds out the package by asking you to find and trace groupings of seven different colored Tangrams in a particular shape.

The game contains a timer on levels, and a hint system, should you find yourself in a seemingly impossible-to-solve situation.

If this sounds interesting to you, remember that LetsTans will be free for today only, so head over to iTunes to download your copy soon.

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3. FreeAppADay for 05/25/10: iCut
4. FreeAppADay for 04/19/10: Chromixa
5. FreeAppADay for 07/07/10: Ground Effect