Clockwork vs WatchWatcher

Measure the accuracy of your watches today! Clockwork includes several useful features. You can store watch information, measure watch accuracy, and set your watch using a clock synchronized with atomic time. Check it out now! _MEASUREMENTS USING IMAGES_ Most other watch measurement apps require either third-party equipment or that you press a button at a specific time. Additional equipment is often expensive, and timing a button press is difficult to do precisely. Clockwork solves this by letting you take a picture of your watch and indicate the time shown in the image. We then synchronize the image capture time with atomic time before comparing it with the time shown on the watch to calculate an offset. Taking measurements over time provides a real-world view of your watch's accuracy. _GRAPHS_ Watch your measurements over time on a beautifully crafted graph. The graph shows how your watch's accuracy changes over time and offers several modes to help you understand its performance. _WHY MEASURE?_ Knowing the accuracy of your watch is interesting on its own, but it also has several practical uses. It can indicate when it is time for a service, and documented accuracy could increase resale value, especially for vintage watches. _STORE DETAILED INFORMATION_ In case of theft or accidents, it will always help to have your information stored in a secure place. _ATOMIC CLOCK, DARK MODE AND MUCH MORE!_ Clockwork includes an atomic clock in both digital and analog formats to help you set your watch as precisely as possible. Powerful settings such as Dark or Light mode, separate day and date formats, and different ways to sort your watches let you customize the app to your liking. // Appfred AS © 2026

Enhanced App Store Description The most complete, precise, and effortless way to track your watch’s accuracy over time. Whether you’re a casual owner or a serious collector, WatchWatcher helps you understand exactly how your timepieces are performing—day after day, week after week. Powerful timing tools • Add timing events in two ways: a simple manual tap or automatic extraction from an image. • Reset your watch to an accurate reference time and continue tracking seamlessly—the app can recalculate all past events with a single instruction. • View a beautiful, full-size graph in your browser showing all your watches at once. Insightful accuracy data • Switch between absolute difference and rate drift to see your watch’s behaviour from every angle. • Discover how your watch compares to others—both across all users and within its specific brand. • See average drift across all time, or focus only on the most recent two events. Smart predictions that save time • When you log a new event, WatchWatcher predicts where your watch should be based on historical drift—minimising adjustments and speeding up logging. • Fine-tune prediction behaviour in settings for even more accuracy. Import, export, and stay in control • Easily back up or migrate your data with iCloud import/export or CSV. • All online features work without creating an account. • No subscriptions, no in-app purchases—just powerful watch-tracking tools, free and private.