# i Sound Level Meter vs SonoMeter

The clearest difference is in-app purchases: i Sound Level Meter at none against SonoMeter's 4. i Sound Level Meter also leads on update cadence (every 2 months vs every 8 months) and iOS requirement (13.0 vs 16). SonoMeter's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. SonoMeter sells 4 in-app purchases, starting at $1.99 per 7 days. i Sound Level Meter asks for nothing beyond the download.

i Sound Level Meter ships an update every 2 months, SonoMeter every 8 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | i Sound Level Meter | SonoMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (38 ratings)](https://appshunter.io/ios/app/i-sound-level-meter/id912170360/reviews)** | — |
| Number of ratings | **38** | — |
| Positive reviews | 22.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Ad-supported | — |
| Size | 7 MB | 35 MB |
| Requires iOS | **13.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [Raphael Goupille](https://appshunter.io/developer/1650597250) |

## What reviewers say

### i Sound Level Meter

[App page](https://appshunter.io/ios/app/i-sound-level-meter/id912170360)

Measure the noise levels around you with this sound meter. Track maximum and minimum decibel values during your measurements. For the most accurate readings, consider using a high-performance noise meter.

**Highlights:** Measures ambient noise levels, Tracks maximum noise values, Tracks minimum noise values, Displays noise measurements

**Features:** Vision Pro support

**In-app purchases:** none


### SonoMeter

[App page](https://appshunter.io/ios/app/sonometer-decibel-meter/id6745488403)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly subscription | $5.99 | per month |
| Annual subscription | $24.99 | per year |
| Premium Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is i Sound Level Meter free?

i Sound Level Meter is free to download, with no in-app purchases.

### Is SonoMeter free?

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

### Do i Sound Level Meter or SonoMeter have ads?

i Sound Level Meter shows ads; SonoMeter does not.

### Which is updated more often, i Sound Level Meter or SonoMeter?

i Sound Level Meter ships an update every 2 months, and SonoMeter every 8 months. Most recently, i Sound Level Meter was updated on October 24, 2026 and SonoMeter 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.*