Study and test knowledge of the 20 standard acids through customizable quizzes. Topics include names, structural formulas, 1-letter and 3-letter codes, codons, and side chain classes. Quizzes are available for free. Remove ads with an in- purchase.
Play a game that combines puzzles and . Drag blocks onto the board to clear rows, columns, and 3x3 squares. Solve puzzles by matching numbers and shapes. Track progress and compete with others.
Find hidden in images that represent emotions, verbs, adjectives, or nouns. Tap to zoom in and identify clues. Play in English, French, German, Russian, Italian, Spanish, or Portuguese. Includes over 200 . Suitable for all ages.
Play a logic puzzle game with 420 levels organized in packs. Choose from 5 board sizes with increasing difficulty. Solve each level uniquely without random moves. Use hints when stuck and collect stars for completing levels without assistance.
Play puzzles with high-quality graphics. Use dual keypads for entries and notes. Enable smart notes for automatic note entry and updates. Track progress and solve puzzles on iPad.
Explore images to find hidden words. Tap to zoom in on details. Solve puzzles by identifying words related to visual clues. Choose from multiple languages including English, French, German, Russian, Italian, and Spanish.
Play puzzles in 26 languages. Solve unlimited puzzles with 3 sizes and 5 categories. Choose from 4 modes. Compete on leaderboards and track statistics. Earn achievements. Play solo or multiplayer. Use simple controls for easy navigation.
Find hidden in images that represent emotions, verbs, adjectives, or nouns. Tap to zoom in and identify answers. Choose from multiple languages including English, French, German, Russian, Italian, Spanish, or Portuguese.
Solve puzzles with unlimited generated grids. Choose from six difficulty levels. Features a vintage 1920s design. Offers a clean interface for focused play. Provides mental exercise and entertainment. Available offline for anytime use.
Solve scrambled picture puzzles by rearranging tiles to reveal images. Guess the hidden word based on the revealed picture. Features include 300 puzzles, 3 special levels, and support in English, French, German, Spanish, and Russian.
Find hidden words in images representing emotions, verbs, adjectives, or nouns. Tap to zoom in and solve puzzles. Available in six languages with over 200 challenges. Suitable for all ages.