Light Meter - Lite

Contains adsIn-app purchases
4.3
4.74K reviews
1M+
Downloads
Content rating
Everyone
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About this app

The essential light meter app for film and digital photography. Turn your phone into a precision spot meter trusted by 400,000+ photographers worldwide.

PRECISION EXPOSURE METERING
• Spot meter with tap-to-focus exposure points
• Multi-point spot metering — pin and compare dynamic range
• Zone System metering — assign zones (0–X) to readings
• Exposure preview for compensation and ND offsets
• Incident light meter via device sensor
• Volume button to start/stop metering
• Calibrated against professional Gossen and Sekonic meters

ZONE PLACEMENT CALCULATOR
• Place readings on zones, see target exposure instantly
• Grayscale swatches show how each reading renders
• Dynamic range warnings for high-contrast scenes
• Send directly to Bracket Calculator

YOUR COMPLETE PHOTOGRAPHY TOOLKIT — 12 CALCULATORS
• DOF — Hyperfocal distance, near/far focus limits
• Reciprocity — 40+ film stocks (Portra, Tri-X, HP5, CineStill, and more)
• Bracket Calculator — Exposure bracketing with custom steps
• Pinhole Calculator — Effective f-stop for pinhole cameras
• EV/LV Converter • White Balance • Bellows Factor
• Flash Guide Number • EXIF Reader • Angle of View
• Zone Placement • Sunny 16

GOLDEN HOUR & BLUE HOUR
• Sunrise, sunset, golden hour, and blue hour times

PROFESSIONAL FEATURES
• Custom ISO, shutter, f-stop ranges
• Half-stop and third-stop increments
• Shutter angle mode for cinematographers
• Live histogram • ND filter display
• Foot-candles and Lux • Exposure timer
• Screen lock to keep display awake

SAVE & ORGANIZE
• Log exposures with GPS and notes
• Hardware profiles for your gear
• Export and reference past readings

Film SLR • Medium format • Large format • Pinhole • Digital mirrorless
50+ languages • No internet required for metering
Updated on
Apr 14, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.3
4.7K reviews
Mark Gladding
March 15, 2026
it worked great for quite a while, but it just stopped taking readings today. I'm going to delete and readd to see if that helps, but it quit while I was on a shoot, so I just wanted to share my experience. Note: after update I'm still having the same problems. It froze while I was out shooting film, which shortened my day.
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WBPhoto
March 6, 2026
Hello! I've published an update that should fix metering issues. Could you give it a try?
Sari
April 15, 2026
Checked the readings vs. Minolta Auto Meter IV F ($300 meter), and while I'd never expect an app to be as accurate as a professional meter, the readings I got weren't even close. If I went by this app's readings my photos would be tremendously overexposed. Update: Just to be sure, I double checked readings from a TTL camera meter. Results from the camera meter and Minolta meter were virtually identical. This light meter app was way way off.
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Louis Mayer
June 25, 2023
Let it be known, I am not a good photographer. But with this app I have one less excuse for being a bad photographer! I highly advise purchasing the app for the full features offered. The reciprocity failure section and being able to save gear for quick reference is invaluable. The app is very accurate (at least on my phone) and costs less than 1/10 of a light meter.
40 people found this review helpful
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What’s new

• Multi-Point Spot Metering
• Zone Placement Calculator
• Bracket & Pinhole Calculators
• Zone System metering
• Exposure Preview
• 20+ new film stocks
• Volume button metering
• Bug fixes & improvements