Based on the H.C.Andersen's fairy tale "Thumbelina", we created an educational app where the story includes dozens of educational tasks and fun mini-games to train logic, memory and attention in children. The game is ideal for 7, 8 and 9 year olds. The list of tasks includes: finding two similar objects in a large group, putting pictures in the correct order to build a story, recalling the guests of May bug, recalling which piece of lace each spider made, mazes, puzzles, sudoku, memory game and