Clockwatts: Leistungsmessung

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Über diese App

Clockwatts turns your smartphone into a virtual dynamometer that measures your vehicle’s power while driving. The app is designed for track use.

Power is no longer just a number in the specs
The app measures your vehicle’s real-time and peak power and automatically stores all data for later analysis. This allows you to focus on driving and review the results afterward.
• Works fully independently without external devices or vehicle connections.
• Utilizes your phone’s GPS and built-in sensors to calculate power and speed.
• Compatible with almost any type of vehicle, whether it’s an electric scooter, motorcycle, passenger car, or heavy-duty vehicle.
• Measurement settings can be customized for different vehicles and driving conditions.
• For best results, determine your vehicle’s total weight as accurately as possible before measurement. The settings include example values for other parameters.
• Use the app on a flat surface and preferably in calm weather to ensure the most accurate results.

Power Measurement Report
When the measurement ends, the app automatically generates a clear report of the test results.
• The report includes a line chart showing the vehicle’s power and speed over the measurement period.
• The chart can be saved for later analysis.
• With the phone’s internal GPS, the maximum measurement duration is typically 30–60 minutes.
• With an external GPS device, the maximum duration is about 10 minutes.

Support for External GPS Devices
• The app supports the RaceBox Mini device, which provides significantly faster location updates and more accurate measurement results.
• It also includes a feature that takes uphill and downhill gradients into account during power measurement - this feature is available only when using the RaceBox Mini device.

If you know your car’s exact frontal area, rolling resistance coefficient, and drag coefficient, enter them in the settings – this will provide even more accurate measurement results.

Example values for the aerodynamic properties of passenger cars can be found on the app’s website:
https://www.clockwatts.com/Car-listing/

Terms and Conditions:
https://www.clockwatts.com/terms-and-conditions

End-User License Agreement (EULA):
https://www.clockwatts.com/end-user-agreement
Virtueller Prüfstand, messen Sie die Leistung Ihres Fahrzeugs auf der Strecke
Aktualisiert am
29.06.2026

Datensicherheit

Was die Sicherheit angeht, solltest du als Erstes verstehen, wie Entwickler deine Daten erheben und weitergeben. Die Datenschutz- und Sicherheitspraktiken können je nach deiner Verwendung, deiner Region und deinem Alter variieren. Diese Informationen wurden vom Entwickler zur Verfügung gestellt und können jederzeit von ihm geändert werden.

Neuerungen

The app is now free to download. New FREE, DYNO and PERFORMANCE subscription tiers are now available.

What's new:
• Automatic measurement
• The screen can be off during measurements
• Storage for 10 measurement reports

The app includes instructions for users who previously purchased the app on how to activate DYNO subscription tier features at no additional cost.