LightMeter Express
PRO Camera Light Meter
Only for iPhone
Free · In-App Purchases
iPhone
Introducing advanced spot metering! Tap anywhere for precise exposure readings with magnified view. Essential for portrait and challenging lighting photography.
LightMeter Express - Professional Camera Tool
Transform your iPhone into a precision light meter for film and digital photography. Get accurate exposure readings with an intuitive interface designed for photographers who demand professional-grade metering capabilities.
CORE FEATURES (FREE):
• Real-time light metering using your device's camera
• Precise aperture, shutter speed, and ISO calculations
• Support for all standard camera settings
• Clean, professional interface optimized for quick readings
• Exposure value (EV) display with compensation controls
• Camera settings reference for popular film and digital cameras
• Works in any lighting condition your camera can see
• Intuitive haptic feedback with "full-stop" detents for exposure drag gestures
PERFECT FOR:
• Film photographers seeking accurate meter readings
• Digital photographers wanting precise exposure control
• Studio and outdoor photography
• Learning proper exposure techniques
• Backup metering when your camera's meter fails
PRO FEATURES (One-time $0.99 purchase):
• **Spot Metering** - Professional spot metering with zoomed preview for precise exposure readings from specific areas of your scene. Drag to reposition, tap to meter. Works best on iPhones with telephoto lenses for maximum precision
• Custom Step Increments - Choose between 1/3, 1/2, or full stop increments for all exposure parameters to match your camera and shooting style
• Live Histogram - Real-time histogram display with RGB channel analysis for precise exposure evaluation and highlight/shadow monitoring
• Preview Compensation - See exposure compensation effects directly in the camera preview to visualize over/under exposure before shooting
• Custom Limits - Set personalized aperture, shutter speed, ISO, and exposure compensation limits to match your specific camera gear and preferences
• Black & White Preview - Turn the camera preview into a grayscale image for helping with B&W photography
The free version provides full light metering functionality suitable for most photography needs. Pro features add advanced customization and analysis tools for professional and enthusiast photographers.
TECHNICAL NOTES:
• Requires camera access to function as a light meter
• All processing happens locally on your device
• No internet connection required
• Compatible with iPhone
• Spot metering optimized for devices with multiple camera lenses
PRIVACY:
Light Meter respects your privacy. Camera data is processed locally and never stored or transmitted. No personal information is collected.
Ratings & Reviews
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v1.2.1
Reworked UI and dynamic scaling of screen elements
Reworked max zoom for Spot Meter
v1.2.0
Added a Spot meter function with integrated histogram.
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Coming soon:
Preset Settings List
Shot Logging
Let us know what you think at feedback@digitaino.com
The developer, Digitaino LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Digitaino LLC
- Size
- 4.1 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Apple Vision
Requires visionOS 1.3 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Light Meter Pro USD 0.99
- Copyright
- © 2025 Digitaino LLC