iPhone Screenshots


Watch Tracker is a revolutionary new app for tracking the accuracy of a wristwatch. It's dramatically easier and more accurate than any previous method.

Just tap a button when the time on your watch matches the time displayed by the app, and Watch Tracker does the rest. It synchronizes with an atomic clock, measures and records the difference, and displays graphs of all the data points you've recorded.

- Uses best-fit analysis to accurately calculate how many seconds your watch gains or loses per day
- Displays graphs of rates and variance
- Can track multiple watches simultaneously
- Saves data in CSV files that can be opened with any spreadsheet software

Watch Tracker is made by the developer of tChess (the chess app that was featured in Apple's "Learn" commercial for the iPad) and Learn Chess (the Apple Staff Favorite e-book).

What's New

Version 1.1.4

- Fixed a problem with the feature that lets you take a picture of a watch

Customer Reviews

4.7 out of 5

49 Ratings

49 Ratings

A must have for wristwatch appreciating folks

Dammit Nickname

Watch Tracker is a great little app. I own multiple mechanical watches and Watch Tracker is a great app for discerning the timing rate of each of my watches. No crashes, works well, and is easy to use. The graphs are easy to read, and the variance calculation and rate calculation are great features.

My only suggestion is to add a little color, perhaps bring the Description field up a level such that it is in the watch’s main screen, and maybe an archiving feature for the watches I don’t own/track anymore. These are piddly app addition suggestions because the Watch Tracker’s main functions are flawless.

Update: love the comments section and default comment drop down menu. Can you add to the menu "face up Overnight".

Good, usable app


It takes a few days to figure out the best way to use the app. My suggestion is to do one timing point and then don't do another for AT LEAST a whole day, preferably longer. Otherwise, you get skewed results given that if one makes a timing point too soon after the previous point, and if one's response time is off by a fraction of a second, the app will extrapolate that into a large gain or loss. Whereas, if one waits a day or more the timing points will give a pretty accurate sense of your watches accuracy.

Stable on iPhone 6+ and very handy watch app


This is a very nice app that runs stable on my iPhone 6+. Not a single crash or bug discovered thus far. I use this app to track the accuracy and variance of my mechanical and quartz watches. Over time you can see how the mechanical movements performs and whether it becomes time for a service in case you start seeing a deviation from the calculated daily rate or fluctuations in variance. As someone who owns several watches as a hobby, I can recommend this app to other watch enthusiasts.


Tom Kerrigan
1.3 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Tom Kerrigan


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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