# dB vs dB Noise Meter

The clearest difference is in-app purchases: dB at none against dB Noise Meter's 5. dB also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. dB Noise Meter sells 5 in-app purchases, starting at $6.99 per 7 days. dB asks for nothing beyond the download.

dB ships an update every 3 weeks, dB Noise Meter every 2 months. The most recent releases landed on September 23, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | dB | dB Noise Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (122 ratings)](https://appshunter.io/ios/app/db-noise-meter/id1590850487/reviews)** |
| Number of ratings | — | **122** |
| Positive reviews | — | 15.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 49 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Shenzhen Jumaoyuan Science and Technology Co., Ltd.](https://appshunter.io/developer/1327619798) | [Petr Polasek](https://appshunter.io/developer/1613323784) |

## What reviewers say

### dB

[App page](https://appshunter.io/ios/app/db-tester/id1441925884)

**Features:** macOS Compatibility

**In-app purchases:** none


### dB Noise Meter

[App page](https://appshunter.io/ios/app/db-noise-meter/id1590850487)

Measure ambient noise levels in decibels (dB) using your phone's microphone. Track real-time noise, identify loud appliances, and monitor your exposure to potentially harmful sound levels.

**Highlights:** Real-time decibel measurement, Noise level tracking, Appliance noise testing, Save noise measurements, Display min/max/avg dB

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 week | $6.99 | per 7 days |
| Premium 1 Month | $9.99 | per month |
| Premium 3 Months | $17.99 | per 3 months |
| Premium 6 Months | $19.99 | per 6 months |
| Premium 1 Year | $29.99 | per year |


## Frequently asked questions

### Is dB free?

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

### Is dB Noise Meter free?

dB Noise Meter is free to download, with in-app purchases available.

### Do dB or dB Noise Meter have ads?

dB Noise Meter shows ads; dB does not.

### Which is updated more often, dB or dB Noise Meter?

dB ships an update every 3 weeks, and dB Noise Meter every 2 months. Most recently, dB was updated on September 23, 2026 and dB Noise Meter on September 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.*