# Lux Light Meter vs Lucent

The clearest difference is price: Lux Light Meter at Free against Lucent's $0.99. Lux Light Meter also leads on iOS requirement (17 vs 26.2). Lucent's advantage is in-app purchases (none vs 3). On update cadence, ads and device support there is nothing between them.

Lux Light Meter is free to download; Lucent costs $0.99 up front. Lux Light Meter sells 3 in-app purchases, starting at $1.99 per 7 days. Lucent asks for nothing beyond the download.

Lux Light Meter ships an update fortnightly, Lucent every 4 weeks. The most recent releases landed on November 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Lux Light Meter | Lucent |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/lux-light-meter-illuminance/id6790679680/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 3 MB |
| Requires iOS | **17** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [灿耿 陈](https://appshunter.io/developer/1688324562) | [志杰 张](https://appshunter.io/developer/1819432983) |

## What reviewers say

### Lux Light Meter

[App page](https://appshunter.io/ios/app/lux-light-meter-illuminance/id6790679680)

Measure ambient light levels with your iPhone. Get real-time lux and foot-candle readings, with specialized modes for photography and plant care. Track light history and calibrate for accuracy.

**Highlights:** Ambient light metering (lux/fc), Photography exposure suggestions, Plant light (PPFD/DLI) estimation, Continuous measurement and history, Optional meter calibration, Privacy-friendly local storage

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $1.99 | per 7 days |
| Annual Subscription | $7.99 | per year |
| Lifetime Access | $12.99 | one-time |


### Lucent

[App page](https://appshunter.io/ios/app/lucent-reading-light-check/id6800970800)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lux Light Meter free?

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

### Is Lucent free?

Lucent costs $0.99, with no in-app purchases.

### Do Lux Light Meter or Lucent have ads?

Neither Lux Light Meter nor Lucent shows ads.

### Which is updated more often, Lux Light Meter or Lucent?

Lux Light Meter ships an update fortnightly, and Lucent every 4 weeks. Most recently, Lux Light Meter was updated on November 5, 2026 and Lucent on October 25, 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.*