Unusable
The amount of ads this app shows is ridiculous. You have to watch an ad every time you start and stop the strobe! If you want to raise your blood pressure - this is the app for you.
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🔧 Utilities
Free
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About
This application transforms your smartphone into a digital tachometer using its flashlight. It measures the rotational speed (RPM) of objects by flashing light at them, making them appear stationary when the flash rate matches their speed. Save readings and use it for mechanics, education, or industrial checks.
✓Measures RPM of rotating objects
✓Adjustable strobe speed (1-10,000 RPM)
✓Quick adjustment buttons (+/- increments)
✓Flash sync for accuracy
✓Save and review RPM data
✓Works in low light conditions
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What's New in Strobe Light
1.1
November 24, 2025
- Improvements
User reviews
Developer apps
FAQ
How does Strobe Light RPM measure RPM?
Strobe Light RPM uses your phone's flashlight to create a flashing light. By adjusting the flash rate, it can make a rotating object appear stationary, allowing you to determine its exact rotational speed in RPM.
What is the range of RPM that Strobe Light RPM can measure?
The app allows you to adjust the strobe speed from 1 to 10,000 RPM, providing a wide range for accurate measurements of various rotating objects.
Can I save my RPM readings with Strobe Light RPM?
Yes, the app features history tracking, enabling you to save and review your RPM data anytime for easy access and reference.
Does Strobe Light RPM work in dark environments?
While optimal results are achieved in the dark, Strobe Light RPM is designed to work effectively in low-light conditions as well.
Is Strobe Light RPM free to use?
Strobe Light RPM is available for free. However, it does contain advertisements.
What devices is Strobe Light RPM compatible with?
Strobe Light RPM is compatible with iPhone, iPad, and iPod devices.
How often is Strobe Light RPM updated?
The app was last updated on November 24, 2025, indicating regular maintenance and potential feature additions.
What age rating does Strobe Light RPM have?
Strobe Light RPM has an age rating of 4+, making it suitable for a wide range of users.