# Decibel X vs Vibroscope

The clearest difference is price: Decibel X at Free against Vibroscope's $7.99. Decibel X also leads on review sentiment (66% vs 40%) and ratings volume (164K vs 2). Vibroscope's advantage is in-app purchases (none vs 5) and rating (5.0 vs 4.6). On ads there is nothing between them.

Decibel X is free to download; Vibroscope costs $7.99 up front. Decibel X sells 5 in-app purchases, starting at $1.99 per 7 days. Vibroscope asks for nothing beyond the download.

Vibroscope holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Decibel X has 164K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 66% of Decibel X's written reviews are positive against 40% of Vibroscope's, so the app with the better star average is not the one people write more warmly about.

Decibel X ships an update every 3 months, Vibroscope every 8 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | Decibel X | Vibroscope |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | [4.6 (164K ratings)](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vibroscope/id1034169622/reviews)** |
| Number of ratings | **164K** | 2 |
| Positive reviews | **66.3% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | **Freemium** | Paid |
| Size | 90 MB | 1 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SkyPaw Co., Limited](https://appshunter.io/developer/1842040687) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### Decibel X

[App page](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923)

This tool transforms your device into a professional sound level meter, offering precise measurements of ambient noise. It features advanced calibration, frequency analysis, and data management for various applications, from personal curiosity to professional use.

**Highlights:** Pre-calibrated sound pressure level (SPL) measurements, Frequency weighting filters (dBA, dBC, ITU-R 468), Apple Watch and Health App integration, History data management with export options, Dosimeter with NIOSH, OSHA standards, FFT and BAR graphs for real-time frequency analysis, InstaDecibel for sharing dB reports on photos

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Membership | $1.99 | per 7 days |
| Monthly Membership | $5.99 | per month |
| Annual Membership | $49.99 | per year |
| ITU-R 468, A, B, C Weightings | $1.99 | one-time |
| Data Export | $2.99 | one-time |

**What reviewers like**

- ⭐ Excellent app
- 👍 Easy to use and understand
- 🔍 Useful for various applications
- 🎓 Helpful for hearing protection
- 🔧 Accurate and reliable

**What reviewers complain about**

- 💰 Expensive subscription model
- 🔒 Misleading free trial
- 📢 Intrusive ads
- 🤖 Inaccurate readings compared to professional meters
- 🤔 Confusing interface

**Reported bugs**

- App crashes when deleting recordings
- Microphone issues on certain devices
- Saved files not accessible after updates

**Requested features**

- Add GPS coordinates to recordings
- Improve reporting and data export
- Provide more weighting options
- Extend frequency range
- Allow music playback while using the app


### 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


## Frequently asked questions

### Is Decibel X free?

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

### Is Vibroscope free?

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

### Which has better reviews, Decibel X or Vibroscope?

Vibroscope is rated higher. Decibel X averages 4.6 out of 5 from 164K ratings, while Vibroscope averages 5.0 from 2 ratings.

### Do Decibel X or Vibroscope have ads?

Neither Decibel X nor Vibroscope shows ads.

### Which is updated more often, Decibel X or Vibroscope?

Decibel X ships an update every 3 months, and Vibroscope every 8 months. Most recently, Decibel X was updated on November 11, 2026 and Vibroscope on November 11, 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.*