Daily logic puzzle

A small puzzle you can actually finish today.

Threadline is a free daily iPhone logic puzzle built around one clean rule: draw a single thread through every cell without painting yourself into a corner.

Open on App Store Try the Web Demo
Threadline daily puzzle card showing a numbered path puzzle board.
Trace the route, connect the numbered knots, and use every square exactly once.

What makes it a logic puzzle?

There is no trivia, no guessing, and no timer. The pressure comes from spatial logic: every move changes which parts of the grid can still be reached.

One route, no repeats The solved thread visits every cell exactly once, so a tempting shortcut can quietly trap the last few squares.
Numbered knots set the order You still choose the path, but the numbered knots keep the solve honest from the first bend to the final square.
A fresh daily board It is made for a quick daily habit: solve today, watch the yearly Tapestry fill in, and come back tomorrow.

Good for people who like calm daily puzzles

Threadline fits next to a morning word puzzle or number puzzle, but the thinking is visual. You stare at the board, test a route in your head, and then commit to the clean line.

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Play the demo Try the rule in your browser before installing the iPhone app. Browse daily cards See the current daily challenge prompts and recurring share cards. One-line puzzle Learn why the route has to be continuous from start to finish. Free daily puzzle app Use the broader daily-app pitch for players looking for a new puzzle habit. iPhone puzzle game See the iOS-first Threadline page for daily puzzle searches. No ads puzzle app Share the privacy-forward version of the Threadline pitch.

Daily Logic Puzzle FAQ

Is Threadline free?

Yes. Today's puzzle is free on iPhone. There are no ads and no account signup.

Can I play in a browser?

You can try a small web demo on the Threadline site, then open the daily iPhone puzzle from the App Store.

Is it a path puzzle?

Yes. Threadline is a daily path puzzle where the route must visit every cell and connect the numbered knots in order.

Try today's Threadline

Free on iPhone. No ads, no account, no analytics SDKs, and no tracking.

Open on App Store