Flicker Light Meter vs FlickerCheck

Flicker Light Meter uses your iPhone camera to estimate lighting flicker and approximate color temperature—entirely on device. Features: • Dominant frequency, flicker depth, and grade guidance • Color temperature and relative scene brightness (not a lux meter) • Optional local history • Plain-language metric explanations Trial & purchase: • 30-day full free trial from first launch (app-managed) • Then monthly subscription or one-time lifetime unlock via Apple IAP • Restore purchases supported; manage/cancel subscriptions in iOS Settings Privacy: no account, no ads, no uploading of video to our servers. Thumbnails are saved locally only if you confirm. Results are for everyday reference only and are not a substitute for certified meters or medical advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ksding.github.io/flicker-light-meter-pages/privacy-en.html

FlickerCheck is a camera-based utility for screening brightness flicker from displays and lights. Point your iPhone camera at an OLED phone, monitor, tablet, LED bulb, or other light source. FlickerCheck waits for a stable signal, analyzes the captured brightness variation, and presents the result in a clear, understandable format. KEY FEATURES - Screen and Light testing modes - Automatic signal-quality guidance - Flicker level assessment - High, Medium, and Low result confidence - Estimated frequency and modulation depth - Captured signal waveform - Save and compare results locally - Guidance for testing screens at 10%, 25%, 50%, and 100% brightness - On-device camera processing FREE USE FlickerCheck includes five free High-confidence measurements, enough for a four-brightness comparison and one repeat. Failed, indeterminate, Low-confidence, and Medium-confidence results do not use the free allowance. Lifetime Pro is a one-time purchase that unlocks unlimited Screen and Light measurements. IMPORTANT LIMITATIONS FlickerCheck is a camera-based screening utility, not laboratory measurement equipment. Camera frame rate, exposure, rolling shutter, device movement, and high-frequency PWM beyond the camera sampling range can affect results. “Estimated frequency” represents the dominant repeating brightness pattern visible to the camera. It may not equal the display or light source’s true physical PWM frequency. FlickerCheck does not diagnose eye conditions, eye strain, or product safety. PRIVACY Camera frames are processed locally in real time and are not uploaded. Saved measurement results remain on your device. Terms of Use:https://www.nicolaigame.top/common/terms-en.html Privacy Policy:https://www.nicolaigame.top/common/privacy-en.html