# YINMIK vs PPFD METER

The clearest difference is rating: PPFD METER at 4.6 against YINMIK's 1.9. PPFD METER also leads on review sentiment (53% vs 15%) and update cadence (every 3 weeks vs every 6 weeks). YINMIK's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. PPFD METER sells 3 in-app purchases, starting at $1.99 per month. YINMIK asks for nothing beyond the download.

PPFD METER holds the better App Store score, 4.6 against 1.9. That said, the two scores are not equally well evidenced: PPFD METER has 118 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 15% of YINMIK's written reviews are positive against 53% of PPFD METER's.

YINMIK ships an update every 6 weeks, PPFD METER every 3 weeks. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | YINMIK | PPFD METER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (23 ratings)](https://appshunter.io/ios/app/yinmik/id1590106540/reviews) | **[4.6 (118 ratings)](https://appshunter.io/ios/app/ppfd-meter-grow-light-meter/id6479329051/reviews)** |
| Number of ratings | 23 | **118** |
| Positive reviews | 15.0% of reviews | **52.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 60 MB | 43 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Huiquan Electronic](https://appshunter.io/developer/1590106542) | [Candas Pamukcu](https://appshunter.io/developer/1735587895) |

## What reviewers say

### YINMIK

[App page](https://appshunter.io/ios/app/yinmik/id1590106540)

This utility app facilitates the easy recording and real-time transmission of test data via Bluetooth. It offers features like data calibration, automatic or manual saving, and sharing to popular messaging platforms, along with access to a product catalog.

**Highlights:** Simple installation and operation, Real-time Bluetooth data transmission, Customizable calibration points, Automatic and manual data saving, Data sharing to third-party platforms, Product catalog access

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 YINMIK free?

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

### Is PPFD METER free?

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

### Which has better reviews, YINMIK or PPFD METER?

PPFD METER is rated higher. YINMIK averages 1.9 out of 5 from 23 ratings, while PPFD METER averages 4.6 from 118 ratings.

### Do YINMIK or PPFD METER have ads?

PPFD METER shows ads; YINMIK does not.

### Which is updated more often, YINMIK or PPFD METER?

YINMIK ships an update every 6 weeks, and PPFD METER every 3 weeks. Most recently, YINMIK was updated on September 21, 2026 and PPFD METER on September 22, 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.*