# Sound Meter HQ vs HYLA

The clearest difference is in-app purchases: HYLA at none against Sound Meter HQ's 1. HYLA also leads on rating (5.0 vs 4.8). Sound Meter HQ's advantage is ratings volume (346 vs 2) and review sentiment (38% vs 18%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sound Meter HQ sells 1 one-off in-app purchase. HYLA asks for nothing beyond the download.

HYLA holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Sound Meter HQ has 346 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 38% of Sound Meter HQ's written reviews are positive against 18% of HYLA's, so the app with the better star average is not the one people write more warmly about.

Sound Meter HQ ships an update every 3 months, HYLA every 6 weeks. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Sound Meter HQ | HYLA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (346 ratings)](https://appshunter.io/ios/app/sound-meter-hq/id1093419762/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hyla/id1574468551/reviews)** |
| Number of ratings | **346** | 2 |
| Positive reviews | **37.5% of reviews** | 17.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 18 MB | 36 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ExaMobile S.A.](https://appshunter.io/developer/506014841) | [HYLA d.o.o.](https://appshunter.io/developer/1574468553) |

## What reviewers say

### Sound Meter HQ

[App page](https://appshunter.io/ios/app/sound-meter-hq/id1093419762)

This application measures noise and sound levels using your device's microphone. It displays results in decibels on a logarithmic graph and allows for calibration to ensure accuracy. You can record minimum, average, and maximum sound levels.

**Highlights:** Measure sound level, Vibration meter, Noise detector, Record Min, AVG, Max levels, Logarithmic dB graph, Manual and auto calibration

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


### HYLA

[App page](https://appshunter.io/ios/app/hyla/id1574468551)

Control your HYLA AREA Water Air Freshener remotely. Adjust power, customize lighting colors and speeds, and manage multiple devices for a personalized ambiance.

**Highlights:** Remote power on/off, Customizable light colors, Adjustable light speed presets, Connect and manage multiple devices, Personalize ambiance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sound Meter HQ free?

Sound Meter HQ is free to download, with in-app purchases available.

### Is HYLA free?

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

### Which has better reviews, Sound Meter HQ or HYLA?

HYLA is rated higher. Sound Meter HQ averages 4.8 out of 5 from 346 ratings, while HYLA averages 5.0 from 2 ratings.

### Do Sound Meter HQ or HYLA have ads?

Neither Sound Meter HQ nor HYLA shows ads.

### Which is updated more often, Sound Meter HQ or HYLA?

Sound Meter HQ ships an update every 3 months, and HYLA every 6 weeks. Most recently, Sound Meter HQ was updated on October 19, 2026 and HYLA on October 3, 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.*