Light Meter - Lux Meter

Mobilia Apps

Contains adsIn-app purchases

About this app

Turn your phone into a professional light meter. Light Meter measures ambient light intensity using your device's built-in sensor, displaying readings in both lux and foot-candles with a real-time chart.

Whether you're checking office lighting compliance, setting up photography lighting, or optimizing your home environment, Light Meter gives you the tools professionals use — right in your pocket.

KEY FEATURES:
• Real-time lux and foot-candle measurement with live intensity chart
• 4 measurement modes — Continuous, Spot, Timed, and Interval recording
• 24 built-in OSHA/IES lighting standards with live compliance checking
• Room-based tracking — organize measurements by location with target lux ranges
• Session recording — save, review, and export measurement history as CSV
• Sensor calibration — calibrate against a known reference for accurate readings
• PDF compliance reports — generate professional lighting assessment documents
• Light level indicator — instant visual feedback from Darkness to Extremely Bright
• Min/Max/Average statistics tracked in real-time during sessions
• Dark mode support with customizable chart settings

WHY CHOOSE LIGHT METER?
• OSHA & IES standards built-in — check workplace compliance instantly
• Room management — track lighting across multiple locations over time
• Professional reports — export PDF compliance reports for clients or inspectors
• No internet required — works completely offline with local data storage
• Clean, distraction-free interface designed for quick measurements

PERFECT FOR:
• Workplace safety officers checking OSHA lighting compliance
• Photographers measuring ambient and studio light levels
• Interior designers optimizing room lighting
• Facility managers tracking lighting across buildings
• Home users ensuring proper lighting for reading, cooking, and relaxation
• Students and educators learning about light intensity

MEASUREMENT MODES: → Continuous: Ongoing real-time measurement with rolling chart → Spot: Single-point reading for quick checks → Timed: Record for a set duration with automatic stop → Interval: Take readings at set intervals for environmental monitoring

LIGHTING STANDARDS: Compare your readings against 24 professional standards across 8 categories: Office, Retail, Industrial, Education, Healthcare, Residential, Outdoor, and Photography. See instant COMPLIANT, BELOW, or ABOVE status for each standard.

ROOM TRACKING: Create rooms with custom target lux ranges. Track measurements over time and see compliance at a glance. Set targets based on lighting standards or your own requirements.

Upgrade to Premium for unlimited sessions, unlimited rooms, PDF reports, and an ad-free experience with a single one-time purchase.

NOT A GOVERNMENT APP

Light Meter is an independent app made by Mobilia Apps. It is not affiliated with, endorsed by or operated by OSHA, the U.S. Department of Labor or any other government entity, and it does not represent a government entity. A phone camera is not a calibrated photometer, so a reading here is indicative and is never a compliance certification.

OFFICIAL SOURCES

The workplace reference levels come from the OSHA construction illumination standard 1926.56. Read the official text before relying on it: https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926.56

The IES levels are published by the Illuminating Engineering Society, which is a private standards body and not a government agency.

Light Meter — measure, compare, comply.

What’s new

• Fixed a crash when sharing an exported CSV on some devices.
• Minor layout and stability improvements.