Screen Brightness Nits Meter vs Screen Light App

Measure the brightness of any screen, monitor, TV, or display using your smartphone camera! Designed for professionals, enthusiasts, and anyone who needs quick and intuitive screen brightness measurements. ACCURACY The app is pre-calibrated against a professional nits meter, but for optimal accuracy on your specific device, we recommend calibrating the app using the built-in calibration feature. MULTIPLE MEASUREMENT UNITS Supports Nits (candela per square meter, cd/m²), Foot-Lambert (fL), Stilb (sb, cd/cm²), Lambert (L), Apostilb (asb, blondel), and Candela per ft² (cd/ft²). REAL-TIME MEASUREMENTS Get instant feedback with continuous real-time luminance measurements. SAVE MEASUREMENTS Save measurements with notes for detailed documentation and easy reference. MULTILINGUAL SUPPORT & DOCUMENTATION Full support for 40 different languages with comprehensive, integrated documentation. CUSTOMIZABLE SETTINGS Tailor the app settings to your specific needs. WHAT YOU CAN MEASURE • TVs and monitors • Computer displays • Smartphones and tablets • Digital signage • Professional monitors • LCD, OLED, LED, HDR, QLED and AMOLED displays PERFECT FOR • TV and display technicians • Video production professionals • Gaming enthusiasts • Home theater enthusiasts • Office lighting consultants • Photographers and videographers HOW TO USE Simply point your device's camera directly at the screen surface you want to measure. Position your device perpendicular to the screen at a distance of no more than a centimeter or half an inch from the display surface. Ensure the screen is set to D65 (6500K standard white). Other color temperature settings may significantly affect measurement accuracy. Privacy Policy, https://nits-meter.contechity.com/pp.html End User License Agreement, https://nits-meter.contechity.com/eula.html FREE FOR A LIMITED TIME Enjoy full functionality for a few weeks. After that, choose a one-time fee or subscription — still at a fraction of the cost of a dedicated device. DEDICATED SUPPORT Your feedback helps us improve the app. Contact us at apps@contechity.com for support or suggestions. Download now and turn your phone into a luminance meter for any screen or display.

ScreenLight is a simple app that lets you use your iPhone screen as a light. It displays a single color across the entire screen, with intuitive controls for brightness and color. There are no ads, and the app is completely free to use.