GrayZone vs mySpotMeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GrayZone
This app acts as a precise light meter for photographers, allowing you to measure light in specific areas of your scene. It helps achieve consistent exposure and accurate tonal representation, especially in challenging lighting conditions.
- Zone System Mode for tonal analysis
- Real SPOT metering for selected areas
- Direct exposure control with ISO, shutter speed, and aperture
- Live preview with native sensor ratio
- UI color inversion option
- No ads or data collection
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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. NEW UI color inversion 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.
mySpotMeter
This app transforms your iPhone into a precise spot meter for photographers. It allows for detailed exposure control by measuring specific areas, evaluating contrast, and calculating settings for film or digital photography.
- Selectable 1°, 2°, and 4° spot metering angles
- Dedicated readings for shadows, highlights, and middle gray
- Aperture or shutter speed priority
- Store and compare measurements
- Instant aperture calculation
- Wide ISO, shutter speed, and aperture ranges
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Designed by a photographer, for photographers. Built with one clear goal: precise spot metering for photographers who want full control over exposure. mySpotMeter turns your iPhone into a dedicated spot meter with selectable 1°, 2° and 4° measuring angles. Whether you shoot film or digital, you can isolate specific areas, evaluate contrast and place your exposure with confidence. Key Features • Selectable 1°, 2° and 4° spot metering angles • Dedicated readings for shadows, highlights and middle gray • Aperture or shutter speed priority • Average readings mode • Store and compare measurements directly on the exposure scale • Clear EV difference between your target and the current reading • Instant aperture calculation based on the selected ISO and shutter speed • Shutter speed range from 240 seconds to 1/8000s • Aperture range from f/1.0 to f/128 • ISO range from 3 to 409.6K • Exposure settings in 1/3 or 1/2-stop increments • Measure using the on-screen control or the iPhone volume buttons • Automatic calibration and precise manual EV adjustment • Filter factor correction up to FF1000 Built for Deliberate Exposure Instead of averaging the entire scene, mySpotMeter lets you measure only the area that matters. Compare shadows and highlights, understand the available contrast and decide exactly where to place your exposure before pressing the shutter. Download the User Manual You can view or download the complete user manual before purchasing or downloading the app. Scroll to the Information section of this App Store page and tap Developer Website. About This app is built and maintained by an independent photographer and developer. It is a focused photographic tool, continuously refined through real-world use. If you have suggestions or need help, feel free to contact me: davidquiles@me.com
Screenshots
Verdict
The clearest difference is rating: mySpotMeter at 4.2 against GrayZone's 2.8. mySpotMeter also leads on review sentiment (100% vs 63%) and update cadence (every 2 days vs weekly). GrayZone's advantage is price ($2.99 vs $5.99) and iOS requirement (18.6 vs 26). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
GrayZone costs $2.99 and mySpotMeter $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
mySpotMeter holds the better App Store score, 4.2 against 2.8. Both are backed by a comparable volume of ratings — 5 and 6 respectively. Written reviews point the same way: 63% of GrayZone's written reviews are positive against 100% of mySpotMeter's.
GrayZone ships an update weekly, mySpotMeter every 2 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.
| Parameter | GrayZone | mySpotMeter |
|---|---|---|
| Price | $2.99 — better | $5.99 |
| Rating | 2.8 (5 ratings) | 4.2 (6 ratings) — better |
| Positive reviews | 62.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 | 6 — better |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #43 — better |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 — better | 26 |
| Further details — not scored | ||
| Size | 3 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Massimiliano Schenetti | David Quiles |
Customer experience
GrayZone
mySpotMeter
In-app purchases
GrayZone
No in-app purchases
mySpotMeter
No in-app purchases








