# Vibroscope vs NIOSH Sound Level Meter

The clearest difference is price: NIOSH Sound Level Meter at Free against Vibroscope's $7.99. NIOSH Sound Level Meter also leads on ratings volume (17K vs 2) and review sentiment (65% vs 40%). Vibroscope's advantage is rating (5.0 vs 4.7). On update cadence, ads, in-app purchases and device support there is nothing between them.

NIOSH Sound Level Meter is free to download; Vibroscope costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Vibroscope holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: NIOSH Sound Level Meter has 17K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 40% of Vibroscope's written reviews are positive against 65% of NIOSH Sound Level Meter's, so the app with the better star average is not the one people write more warmly about.

Vibroscope ships an update every 8 months, NIOSH Sound Level Meter every 5 months. The most recent releases landed on October 26, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Vibroscope | NIOSH Sound Level Meter |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vibroscope/id1034169622/reviews)** | [4.7 (17K ratings)](https://appshunter.io/ios/app/niosh-sound-level-meter/id1096545820/reviews) |
| Number of ratings | 2 | **17K** |
| Positive reviews | 40.0% of reviews | **64.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | Paid | **Free** |
| Best chart rank | — | **#209** |
| Size | 1 MB | 6 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [EA LAB](https://appshunter.io/developer/1005558529) |

## What reviewers say

### Vibroscope

[App page](https://appshunter.io/ios/app/vibroscope/id1034169622)

This tool uses your device's accelerometer to analyze vibrations in real-time, even those inaudible to humans. It visualizes acceleration data and offers FFT analysis for frequency components, with options to log measurements.

**Highlights:** Real-time vibration measurement, Inaudible vibration detection, Two-axial coordinate display, Time-axis waveform display, FFT analyzer for frequency components, Data logging to text files, Snapshot of measurement screen

**In-app purchases:** none


### NIOSH Sound Level Meter

[App page](https://appshunter.io/ios/app/niosh-sound-level-meter/id1096545820)

**Currently charting:** #209 Top Free · Utilities (US App Store)

This free app measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and guidance on hearing protection and noise prevention.

**Highlights:** Sound level measurement, Noise dosimetry, Hearing hazard information, Hearing protector guidelines, Data reporting and sharing, Microphone calibration

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Free and ad-free
- 👍 Simple and intuitive interface
- ⚖️ Accurate and reliable measurements
- 💡 Useful for monitoring noise levels in various environments
- 🔍 Provides detailed noise data and exposure information

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔌 Issues with external microphone support
- 🔋 Can drain battery when running for extended periods
- 📱 Limited iPad optimization

**Reported bugs**

- Inconsistent or inaccurate readings in some cases
- Inability to properly connect and use external microphones
- Freezing or crashing when minimizing the app

**Requested features**

- Ability to save and export measurement sessions
- Option to run the app in the background while the screen is locked
- Integration with Apple Health for long-term noise exposure tracking
- Frequency-specific noise measurements (e.g., A-weighted, C-weighted)


## Frequently asked questions

### Is Vibroscope free?

Vibroscope costs $7.99, with no in-app purchases.

### Is NIOSH Sound Level Meter free?

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

### Which has better reviews, Vibroscope or NIOSH Sound Level Meter?

Vibroscope is rated higher. Vibroscope averages 5.0 out of 5 from 2 ratings, while NIOSH Sound Level Meter averages 4.7 from 17K ratings.

### Do Vibroscope or NIOSH Sound Level Meter have ads?

Neither Vibroscope nor NIOSH Sound Level Meter shows ads.

### Which is updated more often, Vibroscope or NIOSH Sound Level Meter?

Vibroscope ships an update every 8 months, and NIOSH Sound Level Meter every 5 months. Most recently, Vibroscope was updated on October 26, 2026 and NIOSH Sound Level Meter on November 1, 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.*