FlickerGauge

Point the camera at a screen. See the flicker.

Measure the flicker frequency and modulation depth of a screen or lamp, with a verdict against IEEE 1789 — and a community database to check before you buy.

• Calibrated against a mains lamp, with error bars always shown.
• The measurement method is published in full inside the app.
• Photos are never saved: frames are analysed and discarded.

Coming soon to Google Play

Measuring frequency is free forever. Depth, verdicts and the database are a one-time purchase.