PhotoMeterPro — AI-Powered Exposure Meter for Photographers & Filmmakers

Professional measurements. Intelligent recommendations. Cinematic tools.

See the light. Control the scene.

Intelligent tools for better decisions.

Made for photographers. Built for filmmakers.

Download on the App Store How it works

Live Meter

Real-time EV from your iPhone camera sensor — spot, center, and average modes.

Histogram

Live RGB histogram with highlight and shadow clipping indicators.

Waveform

Professional luma waveform for video and cinematic exposure.

False Color

Industry-standard false color mapping across your live preview.

AI Advisor

19+ cloud advisors that explain your real readings — never fake EV.

Camera & Lens Profiles

150 cameras, 613 lenses, 20 mount types with compatibility checks.

ND Filter Suggestions

ND and CPL filter math built into every meter reading.

150Cameras

613Lenses

20Mount types

19+AI advisors

11Languages

Built for Photographers and Filmmakers

Your iPhone becomes a professional light meter. Select your camera and lens, measure EV in the field, dial settings with confidence, and get AI guidance when the scene gets complex — without carrying a second device.

Read the full product overview →

On location

Studio & set

Golden hour

FEATURES

Everything in one app

From gear selection to camera output — no guesswork, no simulated readings. The iPhone camera is the sensor.

PhotoMeterPro histogram, false color, and waveform scopes

Advanced Metering

AVFoundation live capture → LuminanceEngine → real EV mapped to your selected ISO, shutter, and aperture limits.

Live Histogram

CoreImage analysis with RGB channels and clipping warnings on the Meter tab — free and Pro.

False Color

Pro video scopes overlay false color on the live preview for precise exposure across the frame.

Waveform Monitor

Vectorscope and waveform for video Pro workflows — powered by on-device CoreImage analysis.

AI Advisor

Cloud advisors via Cloudflare Worker interpret your meter context — Camera, Lens, Exposure Tutor, Scene Fusion, and more.

Works in Any Light

Manual calibration offsets, flash metering, ND/CPL filters, and hold/spot modes for any scene.

HOW IT WORKS

Three steps from scene to camera

Select your gear

Pick camera body and lens from the catalog. PhotoMeterPro knows ISO ranges, mounts, and aperture limits.

Measure the scene

The iPhone camera reads brightness in real time. You see EV — higher means a brighter scene. Use Hold or Spot for precision.

Dial into your camera

Switch to manual mode and enter the ISO, shutter, and aperture shown. Pro can send settings via BLE, QR, or WiFi.

Get AI help

Ask advisors to explain your reading, compare lenses, or plan a studio setup — all grounded in measured EV.

APP TOUR

Four tabs. One workflow.

Camera → Lens → Meter → Settings. Everything beyond the core loop lives in Settings and Pro tools.

Free

Camera

Brand, series, and model picker with typeahead across 150 bodies. Your active camera drives every reading.

Learn more →

Lens tab

Free

Lens

613 lenses with mount compatibility, search, filters, and alternatives. Pro adds AI descriptions and tags.

Learn more →

Free

Meter

Live preview, EV, histogram, mini waveform, ISO/shutter/aperture, ND/CPL filters, and flash metering.

Learn more →

Free

Settings

Hub for Pro tools, AI advisors, specialized metering modes, cloud sync, and preferences.

Learn more →

Apple Watch companion syncs ISO, shutter, and aperture from iPhone. Adjust with the Digital Crown.

ASK AI

AI that explains — not invents

Cloud advisors interpret your real meter readings and gear context via Cloudflare Worker. They never replace the sensor or generate fake EV values.

Camera Advisor

Strengths, limits, and settings for your body and lens.

Lens Suite

Description, tags, compare two lenses, optical analysis.

Exposure Tutor

Learn why your exposure needs correction from measured EV.

Scene Lens Fusion

Scene + gear → ISO, aperture, shutter with warnings.

Gear Intelligence

Unified photo, video, and studio recommendations.

Studio & Sekonic

Lighting blueprints and flash meter profile guidance.

See all 19+ AI advisors →

PRICING

Free core meter · Pro full toolkit

Pricing is shown in the App Store when you subscribe — not on this website.

Free

Core light meter

Camera, Lens, Meter, Settings tabs
Live EV metering & gear catalog
Apple Watch companion
ND / CPL filters · flash metering
11-language localization

Download on the App Store

Free to download · No credit card required

POPULAR

Pro

In-app subscription via StoreKit 2

All AI advisors (19+ routes)
Histogram, waveform, false color
Camera output: BLE, QR, WiFi, export
Studio mode · CloudKit sync · presets
Pro Dashboard · automation · history

Upgrade in the App Store

Price shown by Apple at purchase · Cancel anytime

FAQ

Common questions

Is PhotoMeterPro accurate?

Yes. It uses your iPhone camera as a real luminance sensor via AVFoundation — not simulated readings. Manual calibration offsets are supported.

Does it work with my camera?

150 camera bodies and 613 lenses across 20 mount types. The app maps EV to valid ISO, shutter, and aperture for your selected gear.

Can I use it for video?

Pro includes waveform, vectorscope, and false color for video exposure. Core EV metering works for stills and video.

Does it work offline?

Core metering and the gear catalog work fully offline. AI advisors need a network connection to the Cloudflare Worker backend.

What's included in Pro?

All AI advisors, video scopes, camera output (BLE, QR, WiFi), studio mode, CloudKit sync, presets, history, and automation tools.

Where is it built?

PhotoMeterPro is developed in Bern, Switzerland. Native SwiftUI app for iOS 17+, iPad, Apple Watch, and Mac Catalyst.

See all questions →

Ready to meter with confidence?

Core metering is free. Upgrade to Pro for AI advisors, video scopes, and the full output pipeline.

Download on the App Store Help center

iOS 17+ · iPhone & iPad · Apple Watch · Mac Catalyst