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Screenshots

  • Tracer: One Line Puzzle screenshot 1
  • Tracer: One Line Puzzle screenshot 2
  • Tracer: One Line Puzzle screenshot 3
  • Tracer: One Line Puzzle screenshot 4

About Tracer: One Line Puzzle

Tracer is a one-stroke puzzle. Each level is a figure of connected dots. Trace every line in one continuous stroke: no lifting your finger, no going over a line twice. Simple to pick up. Deceptively tricky to finish. WHY YOU'LL KEEP PLAYING - Hand-made levels, tuned by feel and ordered from gentle to brutal - A level map that draws itself: your progress is one continuous line - Every connection plays a note, and solving a level lands the chord - Lines ring like plucked strings, with haptics to match - Dark mode that follows your phone - Short sessions, no ads, no timers THE RULE IS THE WHOLE GAME If a figure has more than two dots where an odd number of lines meet, it cannot be traced in one stroke. Every Tracer level can be. Finding the path is on you. Made by one person. More levels are always coming. If you enjoy it, a review genuinely helps.

Ratings & reviews

5.0

5 ratings

5 ★ 100% 4 ★ 0% 3 ★ 0% 2 ★ 0% 1 ★ 0%

What’s new

Version 1.3.0 · Updated July 27, 2026

Four new hand-made levels and a louder, cleaner sound. - New levels: shadow, steps, clover, and window (16 total) - Notes and chords are much louder, tuned for the iPhone speaker - The win chord now fades out smoothly instead of cutting off Beta note: levels were reordered, so earlier progress may point at different puzzles.

App privacy

The developer, Justin Torre, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Tracer: One Line Puzzle

Looking for apps like Tracer: One Line Puzzle? Here are 6 similar apps on the App Store. The highest rated is Trace The Line (5.0/5), and all 6 are free to download.

Tracer: One Line Puzzle vs. alternatives
App Rating Price Last updated
Tracer: One Line Puzzle 5.0 / 5 (5 ratings) Free July 27, 2026
Unistroke: One Path, One Line – Free Aug 22, 2026
Glitch Out: Break The System – Free Mar 23, 2026
GLYPH: TERMINAL – Free Jul 29, 2026
Maze Line – Free Jul 8, 2026
Trace The Line 5.0 / 5 (5) Free Jul 11, 2026
Merge Blocks Puzzle! – Free Apr 21, 2026