# NoiseLevel vs Shh

The clearest difference is price: Shh at Free against NoiseLevel's $0.99. Shh also leads on review sentiment (100% vs 56%) and update cadence (every 5 days vs fortnightly). NoiseLevel's advantage is iOS requirement (10.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Shh is free to download; NoiseLevel costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NoiseLevel ships an update fortnightly, Shh every 5 days. The most recent releases landed on September 26, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | NoiseLevel | Shh |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.6 (28 ratings)](https://appshunter.io/ios/app/noiselevel/id302830630/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 56.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 2 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | +4 | 4+ |
| Developer | [KBMSoft ApS](https://appshunter.io/developer/288294299) | [Jia Jang](https://appshunter.io/developer/1750288126) |

## What reviewers say

### NoiseLevel

[App page](https://appshunter.io/ios/app/noiselevel/id302830630)

Measure ambient sound levels in decibels using your device's microphone. Visualize sound intensity with a dynamic balloon that changes size and color, bursting at high levels. Experiment with different sounds and environments for fun and insight.

**Highlights:** Measures sound in decibels (dB), Visualizes sound with a dynamic balloon, Balloon size and color change with sound level, Balloon bursts at high sound levels, Uses device microphone, Screen orientation flips

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

**In-app purchases:** none


### Shh

[App page](https://appshunter.io/ios/app/shh/id6737796995)

This app helps you stay focused by alerting you when your noise levels exceed a set limit. It's designed for quiet environments like study areas, reducing stress about making noise. Receive discreet alerts even when the screen is locked or the app is in the background.

**Highlights:** Noise level alerts, Background operation, Lock screen alerts, Focus enhancement, Stress reduction

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NoiseLevel free?

NoiseLevel costs $0.99, with no in-app purchases.

### Is Shh free?

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

### Do NoiseLevel or Shh have ads?

Neither NoiseLevel nor Shh shows ads.

### Which is updated more often, NoiseLevel or Shh?

NoiseLevel ships an update fortnightly, and Shh every 5 days. Most recently, NoiseLevel was updated on September 26, 2026 and Shh on June 9, 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.*