JumpStar is a native iOS Chinese Checkers app built around an on-device AI engine. Play full-board Chinese Checkers against JumpStar82, undo moves, tune thinking effort, and save local replays automatically. The game works offline: the model and inference engine are bundled with the app, so there is no server fallback and no account required. Replay your own games or browse bundled JumpStar AI games with a clean timeline, move-by-move controls, and board-side labels that make each player easy to follow. Features: - Play Chinese Checkers against JumpStar82 - Fully offline AI inference - Adjustable thinking effort - Undo support - Optional legal move hints - Local replay saving - Bundled AI-vs-AI replays - Wood move sounds, with multi-jump cadence - Native iPhone and iPad layouts - No account, tracking, ads, or data collection