LIDA Meter

LIDA (Lighting Inspection & Diagnostic Application) measures the quality of lighting sources at a professional level using your smartphone camera. MEASUREMENT MODULES: ▸ Flicker Analysis Measures the flicker frequency, percentage, and flicker index of LED and fluorescent lamps using the camera's rolling shutter. Provides risk assessment according to IEEE 1789-2015. ▸ Color Temperature (CCT) Calculates the color temperature in Kelvin using the McCamy formula. Covers the full range from warm white to cool daylight. ▸ Light Intensity (Lux) Estimates ambient light levels from camera EXIF data. ▸ Color Rendering Index (CRI) Evaluates how accurately a light source renders colors on a 0-100 scale. KEY FEATURES: • Fully on-device — no internet connection required • FFT-based real-time signal processing (C++ native engine) • IEEE 1789-2015 risk assessment (Low / Moderate / High) • 7 languages: English, Turkish, Spanish, Arabic, German, French, Russian • Dark theme interface WHO IS IT FOR: • Lighting engineers and inspectors • Electrical and electronics technicians • Interior designers and lighting designers • Health and safety professionals • Anyone interested in lighting quality PREMIUM: Free version includes unlimited measurements after watching ads, with up to 3 saved records. LIDA Premium removes all ads, enables offline usage, unlimited saved records, and sensor calibration — all with a one-time lifetime purchase.