GrayZone vs Exposir
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.
Exposir
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Exposir is a precise, intuitive light meter designed for photographers who want full control over their exposure — whether shooting with a film camera, manual lens, or any camera without automatic metering. REAL-TIME LIGHT MEASUREMENT Exposir reads the light in front of you instantly, displaying EV values with smooth, accurate updates. No guesswork — just the data you need to make the right exposure decision. THREE METERING MODES Switch between Average, Center-Weighted, and Spot metering in one tap. In Spot mode, simply tap anywhere on the screen to meter exactly where you need. MONOCHROME PREVIEW See the scene in black and white before you commit. Ideal for previsualizing tonal separation when you're shooting B&W film. LIVE HISTOGRAM A real-time luminance histogram shows exactly how the tones fall, so you can catch clipping before it costs you a frame. MAKE IT YOURS Color-code individual apertures and shutter speeds, and set the background, frame and slider colors to match how you work. EXPOSURE COMBINATION AT A GLANCE The built-in exposure slide rule shows aperture and shutter speed combinations side by side, so you can find the right settings in seconds. LOCK YOUR EXPOSURE Lock the screen and take your time — compose your shot and consider your exposure without rushing. Exposir acts as a second viewfinder, giving you the freedom to think before you shoot. ZOOM & FOCAL LENGTH Built-in zoom control lets you recreate the exact focal length of your camera lens, right from your iPhone. FINE EXPOSURE COMPENSATION Adjust exposure compensation with an intuitive slider, in steps as fine as 0.1 EV — or switch to 0.2, 0.3 or 0.5 EV increments to match how you work. LONG EXPOSURE MODE Planning a long exposure shot? Exposir calculates the correct shutter speed for any ND filter combination, then counts down with a built-in timer — with pause, resume, and a notification when your exposure is done. The countdown keeps running on your Lock Screen and in the Dynamic Island, so you can put your phone down and just watch the scene. Every completed exposure is saved to your history. CLEAN. FAST. ALWAYS READY. Exposir launches instantly and stays out of your way. No subscriptions, no ads — just a reliable tool that works every time you raise your camera. WIDGET SUPPORT Add Exposir to your Home Screen or Lock Screen with the built-in widget — launch the app instantly, right when the light catches your eye. Exposir requires camera access for light metering.
Screenshots
Verdict
The clearest difference is chart position: GrayZone at #177 against Exposir's unranked. GrayZone also leads on update cadence (weekly vs fortnightly). On price, ads, in-app purchases and device support 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 Exposir $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GrayZone ships an update weekly, Exposir fortnightly. Both last shipped on October 8, 2026.
| Parameter | GrayZone | Exposir |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 2.8 (5 ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #177 — better | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.6 | 18.2 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Massimiliano Schenetti | Riku Kuse |
In-app purchases
GrayZone
No in-app purchases
Exposir
No in-app purchases









