Nodelock
Rotate tiles to light up a circuit. One solution, always. Never a guess.
Turn tiles until every wire meets its neighbour and the whole grid lights up from one amber source.
Three boards a day, none of them a guess
What ships in the app, and what the generator has to prove before a board reaches you
Three boards every day
Trickle at 4×4, then Circuit at 6×6, then Mainframe at 7×7. The day counts towards your streak only when you solve all three yourself.
Never a guess
A board ships only if a search-free solver settles every tile by pure deduction, and an independent search confirms no second solution.
Par is the solver's own optimum
Three stars means you matched the fewest rotations that solve the board. Par is computed for every board, never estimated.
Pick a tier, or replay any day
Endless lets you choose the difficulty outright instead of riding a hidden ramp, and the archive rebuilds any past date from its seed.
Five languages, offline, VoiceOver
English, German, Arabic, Persian and Kurdish (Sorani), right to left with native numerals. Every tile is labelled for VoiceOver. No account.
Free, with one €1.99 unlock
The daily is never interrupted by an ad. Elsewhere a capped break ad appears after a solve. One €1.99 Pro removes ads and lifts the hint limit. No subscriptions.
See it in play
The home hub, a board mid-solve, the same board in Kurdish Sorani, and your stats.
Ready to try Nodelock?
Rotate tiles to light up a circuit. One solution, always. Never a guess.
Scan to download