# Luminis Light Meter Pro vs GrayZone

The clearest difference is update cadence: GrayZone at weekly against Luminis Light Meter Pro's every 4 months. GrayZone also leads on price ($2.99 vs $5.99). Luminis Light Meter Pro's advantage is iOS requirement (15.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

Luminis Light Meter Pro costs $5.99 and GrayZone $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Luminis Light Meter Pro ships an update every 4 months, GrayZone weekly. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Luminis Light Meter Pro | GrayZone |
| --- | --- | --- |
| Price | $5.99 | **$2.99** |
| Rating | — | **[2.8 (5 ratings)](https://appshunter.io/ios/app/grayzone-light-meter/id6757147623/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | — | Paid |
| Size | 23 MB | 3 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Dejan Boras](https://appshunter.io/developer/1612985659) | [Massimiliano Schenetti](https://appshunter.io/developer/1864870280) |

## What reviewers say

### Luminis Light Meter Pro

[App page](https://appshunter.io/ios/app/luminis-light-meter-pro/id6752771423)

**In-app purchases:** none


### GrayZone

[App page](https://appshunter.io/ios/app/grayzone-light-meter/id6757147623)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is Luminis Light Meter Pro free?

Luminis Light Meter Pro costs $5.99, with no in-app purchases.

### Is GrayZone free?

GrayZone costs $2.99, with no in-app purchases.

### Do Luminis Light Meter Pro or GrayZone have ads?

Neither Luminis Light Meter Pro nor GrayZone shows ads.

### Which is updated more often, Luminis Light Meter Pro or GrayZone?

Luminis Light Meter Pro ships an update every 4 months, and GrayZone weekly. Most recently, Luminis Light Meter Pro was updated on September 23, 2026 and GrayZone on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*