Watch Spring vs Skew

Track. Analyse. Enjoy.  Track mechanical watch accuracy and see drift over time. Log quick time-points, visualise trends with simple charts, keep notes about watch details, track service history, and balance your wrist time across your collection. Why it’s useful • Understand seconds-per-day accuracy and long-term behaviour • Spot issues after knocks or before/after a service • See which watches get the most wear • Keep track of key facts about your watches in one place Features • Accuracy charts & trend • Wear calendar & statistics • Watch collection summary shown as info cards; for a quick snapshot of key facts • Log servicing and repairs with notes and dates; see the before/after impact on accuracy • View your watch ownership history timeline • Time-setting clock (seconds-accurate) • Daily reminders • Import/Export CSV; share charts • iPhone-native, no ads, data stays on device How it works 1. Press and hold on the on-screen clock 2. When your watch matches the time, lift your finger 3. Watch Spring logs the time-point, updates charts, and marks your wear

Skew helps watch enthusiasts measure and track how accurately their watches keep time. Every watch gains or loses a few seconds each day. Skew lets you measure that drift precisely — and track how it changes over time. HOW IT WORKS Sync your watch to GPS time, then sync again later — Skew calculates the exact drift rate in seconds per day. Use the built-in tick detection to check your watch's beat rate — a quick ballpark read without a timing machine. FEATURES • Manage multiple watches in one place — name, caliber, beats per hour, service history, and notes • Log drift manually with GPS time sync • View drift rate trends over time with clean charts • Track wear sessions — see how much you've worn each watch • Attach photos of certificates and receipts to each watch • Local notifications when a watch exceeds your drift threshold • iCloud sync — your watches and logs available across all your devices PRIVACY FIRST Your data syncs privately via iCloud. No third-party servers. No tracking. No ads. Skew is made for the collector who wants real numbers — not just a feeling.