# GrayZone vs MeterGlass

The clearest difference is price: GrayZone at $2.99 against MeterGlass's $9.99. GrayZone also leads on update cadence (weekly vs every 3 weeks) and chart position (#180 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

GrayZone costs $2.99 and MeterGlass $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GrayZone ships an update weekly, MeterGlass every 3 weeks. The most recent releases landed on September 22, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | GrayZone | MeterGlass |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| 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 | **Weekly** | Every 3 weeks |
| Monetization | Paid | — |
| Best chart rank | **#180** | — |
| Size | 3 MB | 3 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Massimiliano Schenetti](https://appshunter.io/developer/1864870280) | [存滨 崔](https://appshunter.io/developer/1809703940) |

## What reviewers say

### GrayZone

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

**Currently charting:** #180 Top Paid · Photo & Video (US App Store)

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


### MeterGlass

[App page](https://appshunter.io/ios/app/meterglass/id6761722905)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GrayZone free?

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

### Is MeterGlass free?

MeterGlass costs $9.99, with no in-app purchases.

### Do GrayZone or MeterGlass have ads?

Neither GrayZone nor MeterGlass shows ads.

### Which is updated more often, GrayZone or MeterGlass?

GrayZone ships an update weekly, and MeterGlass every 3 weeks. Most recently, GrayZone was updated on September 22, 2026 and MeterGlass on September 11, 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.*