# Vibration analysis — Vibrometer

> Analyzes phone accelerometer data to build a vibration spectrum for mechanism evaluation. (iPhone/iPad app by Dmitriy Kharutskiy.)

- Source: https://appshunter.io/ios/app/vibration-analysis/id817385888 (this page in markdown: same URL + `.md`)
- Developer: [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891)
- Category: Utilities, Entertainment
- Price: Free with in-app purchases
- Rating: 4.00/5 from 43 App Store ratings · 41 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 5 MB
- Languages: American English, German (Germany), Japanese, Russian
- Released: 2014-02-27
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews.md

## What is Vibration analysis?

The application analyzes the data from the phone's accelerometer and builds a vibration spectrum. This allows the evaluation of not only the strength and frequency of the vibration, but also the speed of rotation of various mechanisms: fans, motors, various rotating components; since the vibration frequency often (but not always) coincides with the frequency of rotation. The application will be useful in determining the quality of fans and motors, in determining whether their actual parameters coincide with the ones declared by the manufacturer, it will find its uses in monitoring of malfunctions (e.g. in bearings) or while testing the quality of assembly and balancing of the homemade mechanisms with rotating parts.

Do not expose your iPhone to an excessive vibration, as it may break. If the analyzed vibration is too strong, use a foam material pad, or put your iPhone at a distance where the force of the vibration is not dangerous to your device. In addition to decreasing vibration for the iPhone, a foam pad improves contact between the iPhone and the vibrating part, which makes the transmission of vibration more accurate and produces better results.

BE SURE TO READ THE EXAMPLES OF THE VIBRATION SPECTRUM ANALYSIS AT THE APPLICATION WEB SITE (usefulmobileapps.com).

Features of the full version of the application:
• The choice of units of measurement. X-axis: Hz or RPM. Y-axis: g, m/s², ft/s², mm/s, in/s (ips), mm, mil, dB(A), dB(V).
• FFT size (for built-in accelerometer): 64, 128, 256, 512, 1024, 2048, 4096 (data collection time from 0.64 sec. to 40 sec.). For an accelerometer connected to the headphone jack FFT size from 2048 to 131072. For Bluetooth-accelerometer FFT size from 512 to 32768.
• Linear and logarithmic frequency scale.
• Linear frequency scale with maximum details (there is a choice for the displayed frequency range).
• Peak frequency detection.
• Values of any point (for frequency scale and sound wave (at maximum detail)).
• Selecting which axis of the accelerometer is to collect data.
• Octave bands (1/1,1/3,1/6,1/12).
• Window functions (Blackman, Hamming, Hann (Hanning), Blackman–Nuttall, Gaussian, Flat top).
• Peak hold.
• Exponential spectrum averaging.
• Taking a screenshot by lightly touching the screen.
• Root mean square (RMS, for vibration) or average value (AVG, for absolute values) for vibration wave. Values are calculated only for data displayed on the screen.
• Calibration of the built-in accelerometer. Need EXCLUSIVELY for measuring absolute acceleration values (gravitational acceleration). To activate the settings, turn on the "Vibration wave" mode and turn off the "Only fluctuations" mode. The parameters of the accelerometer depend on the temperature and voltage of the battery, and may change over time. To obtain stable values, the accelerometer should work for several minutes.
• Saving the measurement results in the application. Files with saved data (SavedData_[date]_[time].txt) can be copied to a desktop/laptop computer or transferred to another iPhone using iTunes.
• Export data to a text ("Y=[y1 y2... yn]", "y1;y2;... yn", "x1;y1\nx2;y2;...") or WAV file. Number of points is adjusted via "FFT size". To export octaves, use "x1;y1\nx2;y2;...".
• Accelerometer connects to the headphone jack (measurement range from 5 Hz to 24000 Hz).
• A stroboscope for an external accelerometer (the feature was proposed by Todd French from Los Angeles, California).
• Bluetooth accelerometer.

When converting acceleration into speed or displacement, at 0-5 Hz frequencies noise starts prevailing over vibration peaks, which is why such frequencies are disregarded when doing the conversion. Should vibration frequency exceed 50 Hz, the peak will be recorded at an incorrect frequency, and hence speed or displacement will not be calculated correctly. Unrealistically high speed or large displacement may be a sign of this kind of false frequency.

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (10 of 41)

All indexed reviews: https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews.md

### 3/5 — How can I download the time vs xyz raw traces ?

*2026-05-04*

I could download the frequency vs xyz traces but cannot the time vs raw traces. Help me with that

**Developer response:** To export raw data, you must either select the timeline and disable the "Only fluctuations (for X, Y, Z, Blu)..." option, or click the other export button that appears if the "Moving over all collected data" option is enabled. The time between samples depends on the sample rate.

### 5/5 — Screenshots not saving.

*2025-10-16, version 4.3.12*

Why are screenshots not saving any more: every screenshot I took before iOS 26.0.1 were automatically saving to photos now nothing. Why?

### 3/5 — Buggy

*2025-08-05*

The data could disappear during pause.

**Developer response:** This is very strange. Probably the app was in the background when you switched to another app. Or the iPhone was in sleep mode. The app just restarted. My app is not to blame here.

### 3/5 — I want to like this, but…

*2025-05-27*

I’ve been trying to find an app that measures vibration in mm/s. This might be that app (I don’t know yet), but whenever I launch it, the app takes over the entire screen of my iPhone, and it’s impossible to swipe away or quit. I’ve tried to do measurements, but it asks for money before I can try, and because of how it blankets over my iPhone screen and won’t quit when I want to exit, I’m hesitant to make any payments.

**Developer response:** When you swipe the app, do you take into account that the app interface has a landscape orientation :)? You can try how the app determines the frequency and strength of vibration in the free version of the app. For the conversion from "g" to "mm/s" you only need to pay $ 3, one time.

### 5/5 — You’ll feel like a TAKUMI 🥴

*2024-12-11, version 4.3.11*

Everything needed for vibration analysis of internal combustion engines under one app ❤️

### 5/5 — Absolutely the best app for vibration analysis

*2024-06-29*

No other app that I’ve found comes close to the advanced capabilities of this app.  It’s more than I need, but other apps don’t use the full capabilities of the accelerometer in a modern phone.  This one does.

### 5/5 — 非常に面白い

*2023-06-23*

優れた機能を持っており、シンプルで使いやすい！目の前の物体の共振が知りたい時も携帯さえあれば良いという素晴らしさ。でも、BluetoothのWT9011DCLが使えると嬉しいけど。どうやったら使えますか？

### 5/5 — Is a great help to show what sound and vibes are

*2022-10-26*

I use to live in a house with two apts, the neighbor started a small laundry biz, so washer and dryer during the activity, vibrate and resonance is what the vibration through walls and floor transform in sound, LFE from 1 Hz til 10/12 Hz. Those  Hz incapsulate in +45 dbA are the reason of my discomfort or better, pain. 
Regular people usually don’t care about it is a kind of low sound, but me, I have this issue with LFE, for me is like to live in a disco, so download this and others app to evaluate the amount of vibes and their power, if you move from 1 Hz to 400 Hz keeping the same peak volume then people understand my pain. Police officer said I can’t hear anything. When I moved from 1 Hz to 600 Hz he said thst is disturbance. Asking him on what base is disturbance? On volume or power of impact? He said volume and I showed him that I didn’t grow up the volume, I only adapted the range to the standard common people. Thank you for this jewel. I need some advice how to capture and to transform in audible sound, if I ask by email is there any chance to get an answer?

**Developer response:** Of course, I'll try to help you. My email: usefulmobileapps@icloud.com

### 5/5 — Пожелания

*2022-07-08*

Хотелось бы функционал для диагностирования вибраций на автомобиле. С оценкой возможных причин неисправностей по частотам вращения колёс, валов, двигателя и тд.

### 2/5 — Could not quit app

*2022-05-24*

after the screen rotated I could not exit the app on my iPhone 13P. I had to restart the phone

**Developer response:** If the app can block iOS, then it's an iOS bug :)

## Frequently asked questions about Vibration analysis

### What does the vibration analysis app do?

This application uses your phone's accelerometer to analyze vibration data and generate a vibration spectrum. This allows you to assess the strength and frequency of vibrations, and also estimate the rotational speed of various mechanisms like fans and motors.

### What are the key features of the full version?

The full version offers extensive features including a choice of measurement units (Hz, RPM, g, m/s², etc.), customizable FFT sizes for different accelerometers, linear and logarithmic frequency scales, peak frequency detection, and the ability to select accelerometer axes.

### How much does the app cost?

The application is free to download and use, but it offers in-app purchases for its full version. This allows users to access advanced features and unlock the complete functionality of the vibration analysis tools.

### What kind of devices is this app compatible with?

The app is designed for mobile devices equipped with an accelerometer. It can utilize the built-in accelerometer, and also supports accelerometers connected via the headphone jack or Bluetooth for more advanced analysis.

### What are some common use cases for this app?

Common use cases include evaluating the quality of fans and motors, checking if their actual parameters match manufacturer specifications, monitoring for malfunctions like bearing issues, and testing the assembly and balancing of homemade mechanisms with rotating parts.

## Version history (last 5 releases)

### 4.3.14 — 2026-02-15

• Bug fixes.

### 4.3.13 — 2025-11-12

• Bug fixes.

### 4.3.12 — 2025-07-30

• Minor changes in app design.
• Bug fixes.

### 4.3.11 — 2024-04-15

• A more detailed zoom level for the vibration wave (time scale).
• The way data is drawn on the frequency scale while simultaneously drawing data from all accelerometer axes has been changed.
• Bug fixes.

### 4.3.10 — 2023-10-14

• Minor changes in app design.

## Apps similar to Vibration analysis

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## More apps by Dmitriy Kharutskiy

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All apps by Dmitriy Kharutskiy: https://appshunter.io/developer/817385891

## Related topics

[vibration analysis](https://appshunter.io/ios/topics/vibration-analysis) · [vibration detection](https://appshunter.io/ios/topics/vibration-detection) · [vibrometer](https://appshunter.io/ios/topics/vibrometer) · [vibrochecker](https://appshunter.io/ios/topics/vibrochecker) · [vibration meter](https://appshunter.io/ios/topics/vibration-meter)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*