# Sonitus vs Decibels

The clearest difference is rating: Decibels at 4.3 against Sonitus's 3.0. Decibels also leads on ratings volume (22 vs 4). Sonitus's advantage is in-app purchases (none vs 1) and iOS requirement (14.0 vs 17.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Decibels sells 1 in-app purchase, starting at $3.99 per month. Sonitus asks for nothing beyond the download.

Decibels holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Decibels has 22 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 25% of Sonitus's written reviews are positive against 22% of Decibels's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Sonitus | Decibels |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/sonitus/id1541742017/reviews) | **[4.3 (22 ratings)](https://appshunter.io/ios/app/decibels-sound-level-db-meter/id1590741461/reviews)** |
| Number of ratings | 4 | **22** |
| Positive reviews | **25.0% of reviews** | 22.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 30 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 20 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bastiaan Verreijt](https://appshunter.io/developer/1541742019) | [Real Vision Ltd](https://appshunter.io/developer/1447773149) |

## What reviewers say

### Sonitus

[App page](https://appshunter.io/ios/app/sonitus/id1541742017)

Generate audio frequencies from 20Hz to 20kHz. Test your hearing, tune instruments, or analyze audio equipment with fixed frequencies or sweeps. Input frequencies precisely via keyboard or dial.

**Highlights:** Generate audio frequencies (20Hz-20kHz), Hearing test functionality, Instrument tuning aid, Audio equipment testing, Fixed frequency selection, Logarithmic frequency sweep

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibels

[App page](https://appshunter.io/ios/app/decibels-sound-level-db-meter/id1590741461)

Measure sound levels in decibels using your device's microphone. View real-time graphs and historical data to detect noise pollution and protect your hearing. Calibrate for accurate readings across various environments.

**Highlights:** Measures sound in decibels (dB), Displays sound samples on a graph, Detects loud and low environmental noise, Calibrated for accuracy, Shows min/avg/max decibel values, Saves data and view history, Calibrates decibel for each device

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dB Meter Full App Access | $3.99 | per month |


## Frequently asked questions

### Is Sonitus free?

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

### Is Decibels free?

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

### Which has better reviews, Sonitus or Decibels?

Decibels is rated higher. Sonitus averages 3.0 out of 5 from 4 ratings, while Decibels averages 4.3 from 22 ratings.

### Do Sonitus or Decibels have ads?

Neither Sonitus nor Decibels shows ads.

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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.*