# Vibration analysis vs Low Frequency Detector

The clearest difference is price: Vibration analysis at Free against Low Frequency Detector's $9.99. Vibration analysis also leads on rating (4.0 vs 2.8) and update cadence (every 3 months vs every 9 months). Low Frequency Detector's advantage is in-app purchases (none vs 2). On review sentiment, ads and device support there is nothing between them.

Vibration analysis is free to download; Low Frequency Detector costs $9.99 up front. Vibration analysis sells 2 one-off in-app purchases. Low Frequency Detector asks for nothing beyond the download.

Vibration analysis holds the better App Store score, 4.0 against 2.8. That said, the two scores are not equally well evidenced: Vibration analysis has 43 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 57% of Vibration analysis's written reviews are positive against 50% of Low Frequency Detector's.

Vibration analysis ships an update every 3 months, Low Frequency Detector every 9 months. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Vibration analysis | Low Frequency Detector |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.0 (43 ratings)](https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews)** | [2.8 (6 ratings)](https://appshunter.io/ios/app/low-frequency-detector/id1196584147/reviews) |
| Number of ratings | **43** | 6 |
| Positive reviews | **57.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 5 MB | 1 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### 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 |


### Low Frequency Detector

[App page](https://appshunter.io/ios/app/low-frequency-detector/id1196584147)

This tool measures and analyzes low-frequency sounds that are difficult for the human ear to detect. It helps identify potential noise pollution from sources like construction or factories, providing detailed reports on frequency components and sound levels.

**Highlights:** Low-frequency power level measurement (<100Hz), Audible band power level measurement (Leq), 1/3 octave band analysis (OCT), FFT analysis (FFT), Time course graph (TIME), Measurement report generation, Calibration function

**In-app purchases:** none


## Frequently asked questions

### Is Vibration analysis free?

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

### Is Low Frequency Detector free?

Low Frequency Detector costs $9.99, with no in-app purchases.

### Which has better reviews, Vibration analysis or Low Frequency Detector?

Vibration analysis is rated higher. Vibration analysis averages 4.0 out of 5 from 43 ratings, while Low Frequency Detector averages 2.8 from 6 ratings.

### Do Vibration analysis or Low Frequency Detector have ads?

Neither Vibration analysis nor Low Frequency Detector shows ads.

### Which is updated more often, Vibration analysis or Low Frequency Detector?

Vibration analysis ships an update every 3 months, and Low Frequency Detector every 9 months. Most recently, Vibration analysis was updated on October 14, 2026 and Low Frequency Detector on October 6, 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.*