A free app for Android, by Virtual Space LLC.

This app is designed to be used by preschoolers, kindergarteners, and children in the first and second grades. It will help them learn how to identify and compare fractions, as well as how to add and subtract fractions.

The game is divided into four islands, each one containing a different challenge. On the first island, the player will meet the pirates, and on the second island, the pirates will have to cross the bottomless abyss. On the third island, the pirates will come across an unexpected rival-one-eyed Captain. But our brave old sea dogs are not scared at all! With the player's help, the pirates will be able to get bigger watermelons than the rival has.

On the fourth island, the pirates will be tempted to treat themselves with a few pieces of a lovely cake. In this game, the player will offer the pirate a piece of cake and guess what part of the whole cake his piece makes.