# Light Meter vs EXPOCAL

The clearest difference is in-app purchases: EXPOCAL at none against Light Meter's 3. EXPOCAL also leads on update cadence (weekly vs every 4 weeks) and device support (4 vs 1). On price and ads there is nothing between them.

Both are free to download. Light Meter sells 3 in-app purchases, starting at $2.99 per 7 days. EXPOCAL asks for nothing beyond the download.

Light Meter ships an update every 4 weeks, EXPOCAL weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Light Meter | EXPOCAL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 5 MB | 28 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [JOHN MORGAN BROWN](https://appshunter.io/developer/6773414535) |

## What reviewers say

### Light Meter

[App page](https://appshunter.io/ios/app/light-meter-photo-exposure/id6772270533)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sunny 16 Rule Weekly | $2.99 | per 7 days |
| Film Photography Yearly | $14.99 | per year |
| ND Filter Calc, Pay Once | $29.99 | one-time |


### EXPOCAL

[App page](https://appshunter.io/ios/app/expocal/id6774008263)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Light Meter free?

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

### Is EXPOCAL free?

EXPOCAL is free to download, with no in-app purchases.

### Do Light Meter or EXPOCAL have ads?

Neither Light Meter nor EXPOCAL shows ads.

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

Light Meter ships an update every 4 weeks, and EXPOCAL weekly. Most recently, Light Meter was updated on October 28, 2026 and EXPOCAL on October 31, 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.*