# SPLnFFT Noise Meter vs Vibration analysis

The clearest difference is price: Vibration analysis at Free against SPLnFFT Noise Meter's $3.99. SPLnFFT Noise Meter's advantage is rating (4.8 vs 4.0) and review sentiment (90% vs 57%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Vibration analysis is free to download; SPLnFFT Noise Meter costs $3.99 up front. SPLnFFT Noise Meter sells 1 one-off in-app purchase and Vibration analysis sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SPLnFFT Noise Meter holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 61 and 43 respectively. Written reviews point the same way: 90% of SPLnFFT Noise Meter's written reviews are positive against 57% of Vibration analysis's.

SPLnFFT Noise Meter ships an update every 2 months, Vibration analysis every 3 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | SPLnFFT Noise Meter | Vibration analysis |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.8 (61 ratings)](https://appshunter.io/ios/app/splnfft-noise-meter/id355396114/reviews)** | [4.0 (43 ratings)](https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews) |
| Number of ratings | **61** | 43 |
| Positive reviews | **90.4% of reviews** | 57.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 4 MB | 5 MB |
| Requires iOS | **15.2** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fabien Lefebvre](https://appshunter.io/developer/338004167) | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) |

## What reviewers say

### SPLnFFT Noise Meter

[App page](https://appshunter.io/ios/app/splnfft-noise-meter/id355396114)

This app provides advanced audio measurement capabilities, including sound level metering, frequency analysis, and signal generation. It offers both simple interfaces for daily use and detailed metrics for professional applications, with features compliant with industry standards.

**Highlights:** Sound level meter (noise meter), Frequency analyzer, Frequency meter, Test signal generator, Dosimeter, Leq, peak, L10, L95 measurements, Real-time FFT analysis

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Export raw data to Dropbox + PRO features | $4.99 | one-time |

**What reviewers like**

- ⭐ Highly accurate sound measurements compared to professional equipment
- 🎯 Professional-grade features at affordable price point
- 📊 Comprehensive FFT and frequency analysis capabilities
- 🎨 Clean, intuitive, and visually appealing interface
- 🔧 Multiple weighting options (A, B, C, ISO-498) and response times

**What reviewers complain about**

- 🎤 Microphone gain stuck on auto with built-in iPhone mic
- 📞 Limited customer support accessibility (Facebook-only contact)
- 🔄 Persistent review request pop-ups despite already reviewing
- 📱 Display text sizing issues on some devices (iPhone 11)
- 🌐 No website or email support outside of Facebook

**Reported bugs**

- Microphone gain slider unresponsive/locked on auto
- Landscape mode gets stuck, preventing setting changes
- Text display cropped on iPhone 11 (showing '10...' instead of '100.1')
- App freezes and requires reboot on some devices
- Review request pop-up appears repeatedly even after review submitted

**Requested features**

- Ability to override automatic microphone gain control
- Recording functionality with audio and dB level overlay
- Landscape mode support with full FFT display
- Extended frequency range (down to 20Hz for 3rd octave analysis)
- Microphone frequency calibration curve adjustment


### Vibration analysis

[App page](https://appshunter.io/ios/app/vibration-analysis/id817385888)

This app analyzes phone accelerometer data to create a vibration spectrum. It helps evaluate vibration strength, frequency, and the rotation speed of various mechanisms like fans and motors. Useful for quality checks, malfunction detection, and balancing homemade rotating parts.

**Highlights:** Vibration spectrum analysis, Rotation speed evaluation, Mechanism quality assessment, Malfunction monitoring, Customizable FFT size, Multiple units of measurement, Peak frequency detection

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Settings | $2.99 | one-time |
| External accelerometer | $2.99 | one-time |


## Frequently asked questions

### Is SPLnFFT Noise Meter free?

SPLnFFT Noise Meter costs $3.99, and also offers in-app purchases.

### Is Vibration analysis free?

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

### Which has better reviews, SPLnFFT Noise Meter or Vibration analysis?

SPLnFFT Noise Meter is rated higher. SPLnFFT Noise Meter averages 4.8 out of 5 from 61 ratings, while Vibration analysis averages 4.0 from 43 ratings.

### Do SPLnFFT Noise Meter or Vibration analysis have ads?

Neither SPLnFFT Noise Meter nor Vibration analysis shows ads.

### Which is updated more often, SPLnFFT Noise Meter or Vibration analysis?

SPLnFFT Noise Meter ships an update every 2 months, and Vibration analysis every 3 months. Most recently, SPLnFFT Noise Meter was updated on October 23, 2026 and Vibration analysis on October 22, 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.*