GrayZone - Light Meter

Zone System Spot Light Meter

Only for iPhone

$2.99

iPhone

Measure light. Choose where to expose. Control your image. The Zone System on your iPhone for precise, intentional exposure. Spot meter for film and digital photography. GrayZone reads light where you decide — not where your camera guesses. Built by Max of max&douglas — professional photographer with 25 years in editorial and advertising photography. Zone System Mode Measure a reference area first (Zone V), then check where the other tones will fall and their relative EV difference, for precise and consistent exposure. Real SPOT Metering Reads light exclusively in the area you select. Ideal for portraits, complex lighting and critical situations. Calibrated to render the selected area as neutral gray. Direct Exposure Control Set ISO before metering, like a dedicated light meter. Instant precise combinations of shutter speed and aperture. Exposure lock with AE LOCK. Half-stop support for finer control. MANUAL mode with over/underexposure scale. Essential Interface Live preview in your sensor's native ratio. Shows only what you need. Nothing else. Complete Privacy No ads. No photos saved. No data collected or transmitted. For manual shooters — on film or digital. It does not replace your camera. It works alongside it.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Clearer explanations of the Zone System workflow for a more intuitive experience. Added a direct “Rate This App” option inside the app. Minor improvements and general refinements.

Version 3.1

The developer, Massimiliano Schenetti, 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 Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Massimiliano Schenetti
    Size
    • 3.1 MB
    Category
    • Photo & Video
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Max Schenetti. All rights reserved.
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.