# Decibel Meter Plus Pro vs Plant Light Meter

The clearest difference is price: Decibel Meter Plus Pro at Free against Plant Light Meter's $2.99. Decibel Meter Plus Pro also leads on review sentiment (53% vs 39%). Plant Light Meter's advantage is rating (4.6 vs 3.8) and in-app purchases (none vs 1). On ads and device support there is nothing between them.

Decibel Meter Plus Pro is free to download; Plant Light Meter costs $2.99 up front. Decibel Meter Plus Pro sells 1 one-off in-app purchase. Plant Light Meter asks for nothing beyond the download.

Plant Light Meter holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Plant Light Meter has 1.1K ratings behind it against 81, so its average is the more settled of the two. Written reviews complicate that: 53% of Decibel Meter Plus Pro's written reviews are positive against 39% of Plant Light Meter's, so the app with the better star average is not the one people write more warmly about.

Decibel Meter Plus Pro ships an update every 2 months, Plant Light Meter fortnightly. Both last shipped on November 6, 2026.

## The numbers

| Metric | Decibel Meter Plus Pro | Plant Light Meter |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [3.8 (81 ratings)](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476/reviews) | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/plant-light-meter/id1213431133/reviews)** |
| Number of ratings | 81 | **1.1K** |
| Positive reviews | **52.8% of reviews** | 38.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Paid | **Free** |
| Size | 12 MB | 217 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [华芳 张](https://appshunter.io/developer/586041482) | [Studio Nano Ship, Inc.](https://appshunter.io/developer/818733631) |

## What reviewers say

### Decibel Meter Plus Pro

[App page](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476)

Measure the sound levels around you with this utility app. It displays average, peak, and max values, offers decibel exposure time guidelines, and provides information on noise-induced hearing loss. The app also allows data recording and export for analysis.

**Highlights:** Measure sound levels, Display average, peak, and max values, Decibel exposure time guidelines, Information on noise-induced hearing loss, Record and export data, Calibrate measurements, Universal app support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Reports | $0.99 | one-time |


### Plant Light Meter

[App page](https://appshunter.io/ios/app/plant-light-meter/id1213431133)

This app helps indoor plant owners assess the light conditions their plants are receiving. By using your phone's camera, you can measure light levels and understand if they are optimal for your specific plant's needs, preventing common issues like lack of light.

**Highlights:** Measure natural and artificial light, Interpret light levels for plant health, Compatible with rear camera

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate and helpful
- 💡 Useful for newbie plant owners
- 💡 Saves time and guesswork
- 🚀 Quick and easy measurements

**What reviewers complain about**

- 🐛 Limited plant database
- 🐛 Inaccurate readings
- 🐛 Measures leaf color, not light
- 🐛 Broken after recent update
- 🐛 Doesn't work on newer devices

**Reported bugs**

- Fails to access camera
- Inconsistent light readings
- Completely inaccurate measurements
- Stopped working after update

**Requested features**

- Add more plant varieties
- Allow use of front-facing camera
- Provide numerical light readings
- Add watering information
- Improve compatibility with latest devices


## Frequently asked questions

### Is Decibel Meter Plus Pro free?

Decibel Meter Plus Pro is free to download, with in-app purchases available.

### Is Plant Light Meter free?

Plant Light Meter costs $2.99, with no in-app purchases.

### Which has better reviews, Decibel Meter Plus Pro or Plant Light Meter?

Plant Light Meter is rated higher. Decibel Meter Plus Pro averages 3.8 out of 5 from 81 ratings, while Plant Light Meter averages 4.6 from 1.1K ratings.

### Do Decibel Meter Plus Pro or Plant Light Meter have ads?

Neither Decibel Meter Plus Pro nor Plant Light Meter shows ads.

### Which is updated more often, Decibel Meter Plus Pro or Plant Light Meter?

Decibel Meter Plus Pro ships an update every 2 months, and Plant Light Meter fortnightly. Most recently, Decibel Meter Plus Pro was updated on November 6, 2026 and Plant Light Meter on November 6, 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.*