# dB vs Sound Meter Plus

The clearest difference is price: dB at Free against Sound Meter Plus's $2.99. dB also leads on update cadence (every 3 weeks vs every 39 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

dB is free to download; Sound Meter Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

dB ships an update every 3 weeks, Sound Meter Plus every 39 months. The most recent releases landed on September 23, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | dB | Sound Meter Plus |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 39 months |
| Size | 6 MB | 10 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Jumaoyuan Science and Technology Co., Ltd.](https://appshunter.io/developer/1327619798) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### dB

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Sound Meter Plus

[App page](https://appshunter.io/ios/app/sound-meter-plus/id1612179628)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is dB free?

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

### Is Sound Meter Plus free?

Sound Meter Plus costs $2.99, with no in-app purchases.

### Do dB or Sound Meter Plus have ads?

Neither dB nor Sound Meter Plus shows ads.

### Which is updated more often, dB or Sound Meter Plus?

dB ships an update every 3 weeks, and Sound Meter Plus every 39 months. Most recently, dB was updated on September 23, 2026 and Sound Meter Plus on October 11, 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.*