# Decibel vs Smart Commissioning

The clearest difference is in-app purchases: Smart Commissioning at none against Decibel's 15. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Decibel sells 15 in-app purchases, starting at $1.99 per 7 days. Smart Commissioning asks for nothing beyond the download.

## The numbers

| Metric | Decibel | Smart Commissioning |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (319 ratings)](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884/reviews)** | — |
| Number of ratings | **319** | — |
| Positive reviews | 81.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 80 MB | 51 MB |
| Requires iOS | 13.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [EYWIN BILGI TEKNOLOJILERI ANONIM SIRKETI](https://appshunter.io/developer/1492105189) | [Micronova Srl](https://appshunter.io/developer/1338789037) |

## What reviewers say

### Decibel

[App page](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884)

Measure, analyze, and protect your hearing with this comprehensive sound level meter. It offers real-time decibel readings, noise exposure monitoring, and tools for audio exploration like frequency generation and speaker cleaning.

**Highlights:** Real-time sound level measurement (dB), Noise exposure monitoring (Dosimeter), Interactive recording and visualization, Frequency generator, Speaker cleaner, Frequency hearing test

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grooz DB Meter Weekly | $1.99 | per 7 days |
| Weekly Decibel Meter | $2.99 | per 7 days |
| weekly premium | $3.99 | per 7 days |
| Weekly Premium | $3.99 | per 7 days |
| Weekly PRO Decibel | $4.99 | per 7 days |
| Monthly Decibel Meter | $5.99 | per month |
| Monthly Premium | $6.99 | per month |
| Unlimited Weekly PRO | $7.99 | per 7 days |
| Monthly Decibel Sonic PRO | $12.99 | per month |
| Special Yearly Premium | $12.99 | per year |
| Annual Decibel Meter | $29.99 | per year |
| Yearly Premium (B) | $39.99 | per year |
| Yearly Premium | $39.99 | per year |
| Yearly Decibel Sonic PRO | $44.99 | per year |
| Yearly premium pro | $59.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 📏 Accurate decibel meter
- 🔊 High sound level detection
- 👂 Healthy for ear
- 🏠 Useful for home noise levels

**What reviewers complain about**

- 🔋 High battery usage
- 💸 Difficult to cancel subscription
- 💳 Hidden charges after trial
- ⚠️ Dodgy subscription practices

**Reported bugs**

- Background activity drains battery
- Subscription cancellation not obvious

**Requested features**

- Clear cancellation instructions


### Smart Commissioning

[App page](https://appshunter.io/ios/app/smart-commissioning/id6782847829)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel free?

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

### Is Smart Commissioning free?

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

### Do Decibel or Smart Commissioning have ads?

Neither Decibel nor Smart Commissioning shows ads.

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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.*