# SoundLevel vs SmarterNoise Pro

The clearest difference is rating: SmarterNoise Pro at 4.3 against SoundLevel's 3.0. SmarterNoise Pro also leads on update cadence (monthly vs every 22 months) and ratings volume (33 vs 4). SoundLevel's advantage is review sentiment (39% vs 29%) and iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SoundLevel sells 2 one-off in-app purchases and SmarterNoise Pro sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SmarterNoise Pro holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: SmarterNoise Pro has 33 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 39% of SoundLevel's written reviews are positive against 29% of SmarterNoise Pro's, so the app with the better star average is not the one people write more warmly about.

SoundLevel ships an update every 22 months, SmarterNoise Pro monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SoundLevel | SmarterNoise Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/soundlevel-decibel-reading/id315782620/reviews) | **[4.3 (33 ratings)](https://appshunter.io/ios/app/smarternoise-pro/id1466745030/reviews)** |
| Number of ratings | 4 | **33** |
| Positive reviews | **38.8% of reviews** | 28.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 22 MB | 24 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Smudge Apps Ltd](https://appshunter.io/developer/291678441) | [Johan Rogard](https://appshunter.io/developer/1384299041) |

## What reviewers say

### SoundLevel

[App page](https://appshunter.io/ios/app/soundlevel-decibel-reading/id315782620)

Measure ambient noise levels with calibrated dBA readings that mimic human hearing. Compare current sound levels to familiar benchmarks and review historical data with intuitive graphs. Export your findings for further analysis with optional pro features.

**Highlights:** Quick sound level measurements, Calibrated dBA readings, Comparison values, Historical graphing, Peak and max volume count, CSV export (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $2.99 | one-time |
| Premium Version | $4.99 | one-time |

**What reviewers like**

- 👍 Free to use
- 👍 Simple and easy to use
- 👍 Good for approximate readings
- 👍 Works on older devices (some users)
- 👍 Useful for basic sound checks

**What reviewers complain about**

- 👎 Inaccurate readings
- 👎 Consistently reads 70db
- 👎 Poor accuracy compared to professional meters
- 👎 Ads are intrusive
- 👎 Free version is limited

**Reported bugs**

- Crashes on export to CSV
- Crashes immediately on opening (latest version)
- Inaccurate readings (consistently 70db, breathing at 70db, talking at 90db)
- App doesn't work for many users
- Freezes or blocks at certain dB levels (e.g., 70db, 90db)

**Requested features**

- Digital display for readings
- Peak hold function
- Ability to capture or pause readings
- More advanced features in Pro version
- Display Max value reached


### SmarterNoise Pro

[App page](https://appshunter.io/ios/app/smarternoise-pro/id1466745030)

This advanced sound level meter app offers detailed audio analysis with features like frequency spectrum display and data export. It allows for precise sound measurements in both video and audio recording modes, with options for A-, C-, or no weighting.

**Highlights:** Sound level measurement in video/audio modes, Frequency spectrum display, Export measurement data (CSV), Sound level activated audio recording, Calibration tool, Full HD video recording (paid)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Camera upgrade | $0.99 | one-time |
| Frequency spectrum indicator | $1.99 | one-time |
| Video and audio recording | $1.99 | one-time |
| Spectrogram display | $1.99 | one-time |


## Frequently asked questions

### Is SoundLevel free?

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

### Is SmarterNoise Pro free?

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

### Which has better reviews, SoundLevel or SmarterNoise Pro?

SmarterNoise Pro is rated higher. SoundLevel averages 3.0 out of 5 from 4 ratings, while SmarterNoise Pro averages 4.3 from 33 ratings.

### Do SoundLevel or SmarterNoise Pro have ads?

Neither SoundLevel nor SmarterNoise Pro shows ads.

### Which is updated more often, SoundLevel or SmarterNoise Pro?

SoundLevel ships an update every 22 months, and SmarterNoise Pro monthly. Most recently, SoundLevel was updated on October 23, 2026 and SmarterNoise Pro on October 24, 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.*