# SmarterNoise vs dB

The clearest difference is in-app purchases: dB at none against SmarterNoise's 2. dB also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SmarterNoise sells 2 one-off in-app purchases. dB asks for nothing beyond the download.

SmarterNoise ships an update every 6 weeks, dB every 3 weeks. The most recent releases landed on August 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SmarterNoise | dB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (115 ratings)](https://appshunter.io/ios/app/smarternoise/id1384299042/reviews)** | — |
| Number of ratings | **115** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 6 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Johan Rogard](https://appshunter.io/developer/1384299041) | [Shenzhen Jumaoyuan Science and Technology Co., Ltd.](https://appshunter.io/developer/1327619798) |

## What reviewers say

### SmarterNoise

[App page](https://appshunter.io/ios/app/smarternoise/id1384299042)

This app measures sound levels, records audio and video, and provides information on noise exposure risks. It features smart icons to help users understand the impact of noise on health and cognitive performance. Save, share, and archive your recordings with this comprehensive tool.

**Highlights:** Sound level measurement, Video and audio recording, Noise exposure risk information, Smart icons for health impact, Archive and sharing of recordings, Calibration, Location and time display

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Long-term measurement | $1.99 | one-time |
| Remove ads | $2.99 | one-time |


### dB

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmarterNoise free?

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

### Is dB free?

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

### Do SmarterNoise or dB have ads?

SmarterNoise shows ads; dB does not.

### Which is updated more often, SmarterNoise or dB?

SmarterNoise ships an update every 6 weeks, and dB every 3 weeks. Most recently, SmarterNoise was updated on August 11, 2026 and dB on September 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*