Archived App (Last seen on 22 Jan 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
The DR Chrono works together with the app that is available for mobile phones and tablets. All measurements are shown on your device and settings can be altered easily in the app. The DR Chrono is connected to your mobile device using bluetooth. You can measure speeds up to 500 FPS with an accuracy of about +/- 1% of the measured speed
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What's New in DR Chronograph
1.1
November 14, 2018
Voice output
