# PPFD METER vs Lux Light Meter & Photometer

The clearest difference is review sentiment: Lux Light Meter & Photometer at 85% against PPFD METER's 53%. Lux Light Meter & Photometer also leads on rating (4.8 vs 4.6) and iOS requirement (15.0 vs 18.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. PPFD METER sells 3 in-app purchases, starting at $1.99 per month and Lux Light Meter & Photometer sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Lux Light Meter & Photometer holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 129 and 198 respectively. Written reviews point the same way: 53% of PPFD METER's written reviews are positive against 85% of Lux Light Meter & Photometer's.

PPFD METER ships an update every 3 weeks, Lux Light Meter & Photometer monthly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | PPFD METER | Lux Light Meter & Photometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (129 ratings)](https://appshunter.io/ios/app/ppfd-meter-grow-light-meter/id6479329051/reviews) | **[4.8 (198 ratings)](https://appshunter.io/ios/app/lux-light-meter-and-photometer/id6504260709/reviews)** |
| Number of ratings | 129 | **198** |
| Positive reviews | 52.6% of reviews | **85.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 46 MB | 54 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Candas Pamukcu](https://appshunter.io/developer/1735587895) | [ITincubator UAB](https://appshunter.io/developer/1617775851) |

## What reviewers say

### 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 |


### Lux Light Meter & Photometer

[App page](https://appshunter.io/ios/app/lux-light-meter-and-photometer/id6504260709)

Measure light intensity and color temperature for photography, plant care, and workspace optimization. Offers real-time readings, shooting recommendations, and manual control for precise lighting adjustments.

**Highlights:** Real-time color temperature readings, Lux and Foot Candle measurements, Average and Max light values, Shooting recommendations for photographers, Manual control of camera settings

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Meter App | $2.99 | per 7 days |
| Light Meter App | $2.99 | per 7 days |
| Light Meter App | $5.99 | per month |
| Light Meter App | $5.99 | per month |
| Light Meter App | $14.99 | per year |
| Light Meter App | $14.99 | per year |

**What reviewers like**

- 👍 Feature-rich lighting control
- 👍 Intuitive ambient control
- 👍 Optimal workspace brightness
- 👍 Shutter speed control
- 👍 Outdoor shooting efficiency

**What reviewers complain about**

- 💔 MISLEADING SERVICES


## Frequently asked questions

### Is PPFD METER free?

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

### Is Lux Light Meter & Photometer free?

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

### Which has better reviews, PPFD METER or Lux Light Meter & Photometer?

Lux Light Meter & Photometer is rated higher. PPFD METER averages 4.6 out of 5 from 129 ratings, while Lux Light Meter & Photometer averages 4.8 from 198 ratings.

### Do PPFD METER or Lux Light Meter & Photometer have ads?

Both PPFD METER and Lux Light Meter & Photometer show ads.

### Which is updated more often, PPFD METER or Lux Light Meter & Photometer?

PPFD METER ships an update every 3 weeks, and Lux Light Meter & Photometer monthly. Most recently, PPFD METER was updated on October 25, 2026 and Lux Light Meter & Photometer on October 27, 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.*