Horlogemeter

Measure Watch Accuracy

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

**Measure the accuracy of your mechanical watch with your iPhone.** Horlogemeter turns your iPhone into a powerful mechanical watch timegrapher. Using the microphone to listen to your watch movement, Horlogemeter analyzes its acoustic signal and provides detailed timing measurements in seconds. Whether you're checking a newly serviced watch, comparing different movements, or simply curious about how your watch is performing, Horlogemeter gives you the information you need. **Measure your watch** • Rate and daily accuracy • Beat frequency (BPH/VPH) • Beat error • Amplitude • Timing stability **A timegrapher in your pocket** Place your iPhone over the watch crystal and let Horlogemeter listen to the movement. No dedicated timegrapher is required. Horlogemeter is designed for mechanical and automatic watches and can help you monitor their performance wherever you are. **Understand your results** Go beyond a simple accuracy number. Horlogemeter analyzes your measurement and helps you understand what the results mean for your mechanical watch. **Keep track of your watches** Save your measurements and build a history for each watch. Compare results over time and monitor changes in your watch's performance. **Made for watch enthusiasts** Whether you are a collector, enthusiast, or simply want to know how accurately your mechanical watch is running, Horlogemeter puts watch timing analysis in your pocket. **How it works** 1. Place your mechanical watch as instructed. 2. Position your iPhone over the watch crystal. 3. Start the measurement. 4. Let Horlogemeter analyze the movement. 5. Review your rate, amplitude, beat error and other timing data. Discover how your mechanical watch is really performing. **Horlogemeter — Measure. Analyze. Understand your watch.**

Ratings & Reviews

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Improved measurement accuracy and audio-capture reliability, with clearer diagnostics for microphone and recording-quality issues. New checks assess reading stability and beat rate, with alerts for movement mismatches. You can now review movement options by reference and production era. Beat rates for selected vintage Rolex calibers were also corrected, and watch winding condition can be recorded to support diagnosis.

Version 1.2

The developer, carlos Kekwa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • Identifiers

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
carlos Kekwa
Size
21.1 MB
Category
Utilities
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
  • Apple Watch
    Requires watchOS 10.0 or later.
Languages
English and 2 more
  • English, Arabic, French
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Carlos kekwa
  • Developer Website
  • Privacy Policy

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