Draw one line through every numbered cell, in order. A new puzzle every day. No ads, ever.
How it playsTrace one path from 1 to the last number, in order. Move only to a neighboring cell. Fill the whole grid. Every puzzle has exactly one solution.
Free, with an optional Pro unlockThe Daily puzzle and Endless mode (5×5–6×6, Easy or Medium) are free forever, with unlimited undo and hints. Gridtrail Pro is one purchase — no subscription — that unlocks 7×7–9×9 boards and Hard/Expert difficulty.
Private by designNo accounts, no analytics, no ads, and no cookies. Gridtrail runs fully offline — everything happens on your device.