# LUX vs Light Meter

The clearest difference is in-app purchases: Light Meter at none against LUX's 2. Light Meter also leads on ads (none vs shown) and update cadence (every 2 days vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. LUX sells 2 in-app purchases, starting at $1.99 per month. Light Meter asks for nothing beyond the download.

LUX ships an update every 2 weeks, Light Meter every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | LUX | Light Meter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 31 MB |
| Requires iOS | 18.0 | **15** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [koji torishima](https://appshunter.io/developer/1622793467) | [Dharmik Ghori](https://appshunter.io/developer/6809687615) |

## What reviewers say

### LUX

[App page](https://appshunter.io/ios/app/lux-illuminance-meter/id1631156210)

Measure ambient light levels in lux or foot-candles instantly. Useful for photography, plant care, or verifying brightness for various tasks. Offers advanced features like color temperature and measurement history for premium users.

**Highlights:** Instant lux measurement, Color temperature (CCT) reading, Foot-candle unit toggle, Min/Avg/Max lux tracking, Measurement history (Premium), CSV export (Premium)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Yearly Plan | $11.99 | per year |


### Light Meter

[App page](https://appshunter.io/ios/app/light-meter-lux/id6809687613)

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

**In-app purchases:** none


## Frequently asked questions

### Is LUX free?

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

### Is Light Meter free?

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

### Do LUX or Light Meter have ads?

LUX shows ads; Light Meter does not.

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

LUX ships an update every 2 weeks, and Light Meter every 2 days. Most recently, LUX was updated on October 25, 2026 and Light Meter on October 24, 2026.

---

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