Solve logic puzzles by arranging rocks to fill board holes. Choose board sizes for varying difficulty. Play online against other players. Each puzzle has a unique solution. Track progress and compete globally.
Generate tone sounds with adjustable frequency settings from 160Hz to 20000Hz. Use slider or numeric input to set frequency. Play the selected tone. Test hearing by listening to different frequencies.
Explore a abandoned to uncover clues and . Interact with objects by tapping, selecting items, and enlarging them. Receive auto-saved progress and enjoy detailed graphics and sound without in- purchases.
Play a full 88-key virtual keyboard to access 91 musical instruments. Use touch gestures to control dynamics and articulation. Record performances and export audio files. Share compositions via email or social media.