A PATH WORTH PAUSING FOR
One path.
Two phases.
A brighter idea.
Weave a thread of light through a quiet grid. Collect every relay, change phase, and find the route that makes it all click.
Coming soon to the App Store
Free · iPhone · iOS 17 or later
72 small discoveries
Six chapters introduce new ideas, then bring them together. A hands-on tutorial gets you started.
A daily moment
Return for the daily puzzle, or explore endless practice. Your progress stays on your iPhone.
Room to think
Undo, rewind, restart and ask for a hint. Every puzzle and every hint is free.
A quiet companion
Play entirely offline, without accounts, advertisements, purchases or tracking. English and Simplified Chinese included.
Follow the light, then change it.
Connect the source to the receiver in one non-crossing route. Collect every relay. A gate accepts its matching phase; an inverter changes mint to amber or amber to mint. Ordinary steps keep the current phase.