# Light Meter vs DevGlass

The clearest difference is price: Light Meter at Free against DevGlass's $7.99. Light Meter also leads on update cadence (weekly vs monthly). DevGlass's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Light Meter is free to download; DevGlass costs $7.99 up front. Light Meter sells 2 in-app purchases, starting at $7.99 per year. DevGlass asks for nothing beyond the download.

Light Meter ships an update weekly, DevGlass monthly. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Light Meter | DevGlass |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/light-meter-filmbox/id6757200856/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 85.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Freemium | — |
| Size | 33 MB | 9 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [卓 朱](https://appshunter.io/developer/1864726195) | [存滨 崔](https://appshunter.io/developer/1809703940) |

## What reviewers say

### Light Meter

[App page](https://appshunter.io/ios/app/light-meter-filmbox/id6757200856)

This app helps film photographers precisely measure light, distance, and depth of field before taking a shot. It offers tools for exposure evaluation, flash calculation, and reciprocity failure compensation, with advanced features available via a one-time purchase.

**Highlights:** Light metering, Zone metering, Flash calculator, Reciprocity failure compensation, Distance meter (LiDAR), Depth of field calculator, Gear library

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FilmBox Toolkit Pro Subscription | $7.99 | per year |
| FilmBox Toolkit Pro | $17.99 | one-time |


### DevGlass

[App page](https://appshunter.io/ios/app/devglass/id6762206948)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Light Meter free?

Light Meter is free to download, with in-app purchases available.

### Is DevGlass free?

DevGlass costs $7.99, with no in-app purchases.

### Do Light Meter or DevGlass have ads?

Neither Light Meter nor DevGlass shows ads.

### Which is updated more often, Light Meter or DevGlass?

Light Meter ships an update weekly, and DevGlass monthly. Most recently, Light Meter was updated on October 14, 2026 and DevGlass on October 17, 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.*