Watch Accuracy Meter

4.5
2.47K reviews
100K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image

About this app

Measure the rate (seconds/day) and beat error (ms) of mechanical watches using the phone microphone.
* Get results in 60 seconds
* No external hardware required
* Two measurement screens
* Should work even if a small amount of background noise is present
* Automatic beats per hour detection.
* Custom beats per hour setting.
* Saving and comparing multiple results

The measured values for the same watch can very depending on:
- The position of the watch.
- The power reserve of the watch.
The measured values are estimation and can be different from the actual ones.
Updated on
Dec 14, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.5
2.42K reviews
Michael Geary
February 9, 2024
This app works surprisingly well. I got it to just give me an idea about how my watches were running on the fly. I have a proper time grapher, and this app goes toe to toe with it. It's very accurate. My only issue is that it sometimes can't get a reading on a watch with a thick case, like a heavy diver. I suppose that's due to the sensitivity of the mic, not the app itself. Overall, I'm very pleased.
9 people found this review helpful
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Watch Accuracy Meter
February 9, 2024
Thank you for the feedback!
Sinn U1000
February 8, 2024
It is a very good and useful app,indeed. I can confirm it is very accurate. However,the silent room is a must for achieving the best possible results. One friendly piece of advice to the developers... please change the interface of the app or add the option to personalize the screen with the different styles. Also, I think the FULL SCREEN interface is mandatory. We all use modern phones, and the current interface is only half the screen. I hope you understand. Regards, Alexander.
6 people found this review helpful
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Steve Horn
January 1, 2024
It works! I have a stand-alone timegrapher for more detailed work, but this does quite well for what it is. I've tried other apps that just didn't work very well. This app has a simple user interface and seems accurate compared to my timegrapher and also real-world results. Doesn't show amplitude, but that's not a real complaint for a smartphone app. Nice job!
10 people found this review helpful
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Watch Accuracy Meter
January 1, 2024
Thank you for the feedback!

What's new

Improved rendering and rate/beat error estimation algorithms.