FlickerMeter: Light Flicker

Content rating
Everyone
10+
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Content rating
Everyone
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About this app

FlickerMeter is the most accurate light flicker meter, PWM detector, and LED flicker tester for Android. Detect invisible flicker in LED bulbs, monitors, headlights, and screens in seconds.

Whether you're sensitive to flicker headaches, choosing eye-safe LED bulbs, or testing automotive headlights — FlickerMeter turns your phone into a precision PWM flicker analyzer.

▶ MAIN FEATURES
• Flicker meter — detect light flicker frequency (Hz) and depth (%)
• PWM detector — identify pulse-width modulation in LED lights
• LED flicker test — bulb safety check
• Headlight tester — automotive LED quality
• Real-time waveform display
• Flicker depth meter — % modulation severity
• Frequency analysis (1 Hz–10 kHz)
• Calibration with known flicker source
• Dark mode for low-light testing
• Works fully offline — no account, no ads block

▶ HOW TO USE
1. Open FlickerMeter and uncover the front camera
2. Point the camera at the light source you want to test
3. Read the flicker frequency in Hz
4. Check % depth — anything above 30% may cause discomfort

▶ WHO USES FLICKERMETER
• Light-sensitive users avoiding flicker headaches and migraines
• Office workers checking workspace LED quality
• Photographers detecting strobe in continuous lights
• Cinematographers avoiding rolling-shutter artifacts
• Health professionals advising sensitive patients
• Parents checking baby room lighting safety
• Auto enthusiasts testing aftermarket LED headlights
• Reviewers benchmarking display backlights
• Engineers debugging LED driver circuits
• Educators teaching PWM and lighting design
Updated on
May 14, 2026

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.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted