# Lux Light Meter Pro for Photo vs PPFD METER

The clearest difference is monetization model: PPFD METER at free with in-app purchases against Lux Light Meter Pro for Photo's subscription. Lux Light Meter Pro for Photo's advantage is ads (none vs shown) and ratings volume (448 vs 130). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Lux Light Meter Pro for Photo sells 8 in-app purchases, starting at $1.99 per 7 days and PPFD METER sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Lux Light Meter Pro for Photo against 4.6 for PPFD METER. Both are backed by a comparable volume of ratings — 448 and 130 respectively. Written reviews split almost evenly too, at 53% and 53% positive.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Lux Light Meter Pro for Photo | PPFD METER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (448 ratings)](https://appshunter.io/ios/app/lux-light-meter-pro-for-photo/id6447008772/reviews)** | [4.6 (130 ratings)](https://appshunter.io/ios/app/ppfd-meter-grow-light-meter/id6479329051/reviews) |
| Number of ratings | **448** | 130 |
| Positive reviews | **52.7% of reviews** | 52.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 156 MB | 46 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) | [Candas Pamukcu](https://appshunter.io/developer/1735587895) |

## What reviewers say

### Lux Light Meter Pro for Photo

[App page](https://appshunter.io/ios/app/lux-light-meter-pro-for-photo/id6447008772)

This app provides precise light measurements in lux and foot candles, along with real-time color temperature readings. It offers shooting value recommendations and allows manual adjustment of camera settings for photographers, plant enthusiasts, and workspace optimization.

**Highlights:** Real-time color temperature measurement, Lux and foot candles light measurements, Average and max light values, Real-time shooting value recommendations, Adjustable shutter speed, aperture, and ISO, Plant light optimization, Workspace illumination tuning

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $1.99 | per 7 days |
| Weekly Access | $2.99 | per 7 days |
| Light Meter & Exposure Value | $2.99 | per 7 days |
| Monthly Access | $5.99 | per month |
| Light Meter Premium | $5.99 | per month |
| Yearly Access | $7.99 | per year |
| Lux Light Meter PRO | $19.99 | per year |
| Yearly Access | $19.99 | per year |

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 📏 Accurate light measurements and lux readings
- 🌱 Excellent for plant care and monitoring light levels
- 📷 Valuable tool for photographers and lighting professionals
- 🎨 Real-time color temperature readings

**What reviewers complain about**

- 🐛 App crashes frequently
- 💳 Paywall and subscription model not clearly communicated
- 🚫 Difficult or impossible to unsubscribe
- ❓ Lack of documentation and user guidance
- 🤔 Confusing indoor vs outdoor settings explanation

**Reported bugs**

- Constant crashes during use
- Artificial grow light LED readings appear inaccurate
- Indoor setting measurements too low for accuracy

**Requested features**

- Clear documentation explaining indoor vs outdoor lux settings
- Comprehensive user guide and help documentation
- Explanation of technical differences in measurement modes
- Better onboarding to showcase free features before sign-up


### PPFD METER

[App page](https://appshunter.io/ios/app/ppfd-meter-grow-light-meter/id6479329051)

This app measures light intensity for plants, converting LUX to PPFD and DLI. It offers advanced light mapping, uniformity analysis, and efficiency insights to optimize plant growth. Customize profiles for different environments and growth stages.

**Highlights:** LUX, PPFD, DLI, and PAR measurements, Light mapping and distribution analysis, Uniformity and PPF evaluation, Energy efficiency and consumption tracking, Customizable setting profiles, Bluetooth sensor integration

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium Plus | $2.99 | per month |
| Remove Ads | $29.99 | one-time |


## Frequently asked questions

### Is Lux Light Meter Pro for Photo free?

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

### Is PPFD METER free?

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

### Which has better reviews, Lux Light Meter Pro for Photo or PPFD METER?

Lux Light Meter Pro for Photo is rated higher. Lux Light Meter Pro for Photo averages 4.8 out of 5 from 448 ratings, while PPFD METER averages 4.6 from 130 ratings.

### Do Lux Light Meter Pro for Photo or PPFD METER have ads?

PPFD METER shows ads; Lux Light Meter Pro for Photo does not.

### Which is updated more often, Lux Light Meter Pro for Photo or PPFD METER?

Lux Light Meter Pro for Photo ships an update every 3 weeks, and PPFD METER every 3 weeks. Most recently, Lux Light Meter Pro for Photo was updated on November 3, 2026 and PPFD METER on November 4, 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.*