# SmarterNoise vs Decibel Meter Sound Level dB

The clearest difference is review sentiment: SmarterNoise at 75% against Decibel Meter Sound Level dB's 38%. SmarterNoise also leads on rating (4.6 vs 4.4) and update cadence (every 6 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SmarterNoise sells 2 one-off in-app purchases and Decibel Meter Sound Level dB sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SmarterNoise holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 115 and 24 respectively. Written reviews point the same way: 75% of SmarterNoise's written reviews are positive against 38% of Decibel Meter Sound Level dB's.

SmarterNoise ships an update every 6 weeks, Decibel Meter Sound Level dB every 3 months. The most recent releases landed on October 15, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | SmarterNoise | Decibel Meter Sound Level dB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (115 ratings)](https://appshunter.io/ios/app/smarternoise/id1384299042/reviews)** | [4.4 (24 ratings)](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369/reviews) |
| Number of ratings | **115** | 24 |
| Positive reviews | **75.0% of reviews** | 37.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 27 MB | 19 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Johan Rogard](https://appshunter.io/developer/1384299041) | [汇杭 钟](https://appshunter.io/developer/1481585840) |

## 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 |


### Decibel Meter Sound Level dB

[App page](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369)

This tool transforms your iPhone into a professional sound level meter. It measures noise levels, tracks daily noise exposure, and can record video with embedded decibel data for evidence. Analyze sound frequencies and generate reports for workplace compliance or noise complaints.

**Highlights:** Professional noise dosimeter, OSHA & NIOSH standards compliance, Video recording with dB overlay, Spectrum analyzer (RTA), PDF report export, Calibration for accuracy, Background measurement mode

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Monthly | $5.99 | per month |
| Premium Yearly | $29.99 | per year |
| Lifetime Premium | $49.99 | one-time |


## Frequently asked questions

### Is SmarterNoise free?

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

### Is Decibel Meter Sound Level dB free?

Decibel Meter Sound Level dB is free to download, with in-app purchases available.

### Which has better reviews, SmarterNoise or Decibel Meter Sound Level dB?

SmarterNoise is rated higher. SmarterNoise averages 4.6 out of 5 from 115 ratings, while Decibel Meter Sound Level dB averages 4.4 from 24 ratings.

### Do SmarterNoise or Decibel Meter Sound Level dB have ads?

Both SmarterNoise and Decibel Meter Sound Level dB show ads.

### Which is updated more often, SmarterNoise or Decibel Meter Sound Level dB?

SmarterNoise ships an update every 6 weeks, and Decibel Meter Sound Level dB every 3 months. Most recently, SmarterNoise was updated on October 15, 2026 and Decibel Meter Sound Level dB 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.*