Tickscope — Watch Accuracy

Sort your watches by what's been on your wrist. Each row shows last-worn instantly. Wear Calendar ends with a 30-day rotation summary..

Tickscope is the complete companion for the mechanical watch lover — on the phone you already own.

TIMEGRAPHER Rate, beat error, and amplitude, measured in seconds. No bench, no microphone hardware. Place your watch against the phone's microphone and read accuracy to ±1 s/d, the same numbers a $2,000 shop machine would give you.

WEAR CALENDAR Log every watch you wear. A color-coded heat map shows your rotation by week, month, and year, with live stats on your most-worn pieces. Your rotation, finally visible.

WATCHES Catalog your collection with photos, references, and full specs. Every timing session is saved per watch, so the measurement history is always tied to the piece it came from.

HERITAGE Add a Rolex Submariner, an Omega Speedmaster, a Seiko SKX007 — Tickscope recognizes what it is. You get a short reverent blurb, the caliber, and the origin with a flag. 5,000+ references across 50+ brands, entirely on-device.

CLOCK A grand-complications dial in your pocket. Working chronograph, rattrapante split, moonphase, and three finishes, all synced to iOS atomic time.

LIBRARY 14 deep articles on how watches actually work. A 124-term horology glossary. A 125-caliber reference database you can link to any watch in your collection.

TECHNICAL DETAILS • 6-position testing (CH, CD, 3H, 6H, 9H, 12H) to spot positional bias the way COSC does • COSC-grade assessment on every measurement session • Rate, amplitude, and beat-error trend graphs over time, per watch • Lift-angle and sensitivity controls for any caliber • Printable PDF timing certificates with full position data

PRIVACY Tickscope runs entirely on-device. No account, no cloud, no subscription to read your own data. Your collection stays yours.

FREE VS. PRO The free tier includes up to 3 watches and 25 timegrapher measurements. Tickscope Pro ($4.99) unlocks the full library, unlimited watches, trend graphs, COSC challenges, and printable certificates. Buy once — no recurring fees.

— PRICING —

25 free measurements. Unlock unlimited use for $4.99 — one time, forever. No subscriptions.