# Vibration analysis vs Pitch Witch

The clearest difference is review sentiment: Pitch Witch at 100% against Vibration analysis's 57%. Pitch Witch also leads on in-app purchases (none vs 2) and update cadence (every 9 days vs every 3 months). Vibration analysis's advantage is rating (4.0 vs 3.7) and ratings volume (43 vs 3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Vibration analysis sells 2 one-off in-app purchases. Pitch Witch asks for nothing beyond the download.

Vibration analysis holds the better App Store score, 4.0 against 3.7. That said, the two scores are not equally well evidenced: Vibration analysis has 43 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 57% of Vibration analysis's written reviews are positive against 100% of Pitch Witch's, so the app with the better star average is not the one people write more warmly about.

Vibration analysis ships an update every 3 months, Pitch Witch every 9 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Vibration analysis | Pitch Witch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (43 ratings)](https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/pitch-witch/id1590015267/reviews) |
| Number of ratings | **43** | 3 |
| Positive reviews | 57.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 6 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) | [Privacy Research LLC](https://appshunter.io/developer/1530390623) |

## 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 |


### Pitch Witch

[App page](https://appshunter.io/ios/app/pitch-witch/id1590015267)

This free, open-source app helps users train their speaking voice by monitoring pitch and resonance in real-time. It offers advanced features like multiple pitch estimation algorithms and customizable visual guides for pitch range. Users can save, analyze, and export recordings for later review.

**Highlights:** Live voice pitch monitoring, Multiple pitch estimation algorithms, Formant estimation for resonance analysis, Customizable visual pitch guidelines, Save, analyze, and export recordings, Pinch-to-zoom pitch chart

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vibration analysis free?

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

### Is Pitch Witch free?

Pitch Witch is free to download, with no in-app purchases.

### Which has better reviews, Vibration analysis or Pitch Witch?

Vibration analysis is rated higher. Vibration analysis averages 4.0 out of 5 from 43 ratings, while Pitch Witch averages 3.7 from 3 ratings.

### Do Vibration analysis or Pitch Witch have ads?

Neither Vibration analysis nor Pitch Witch shows ads.

### Which is updated more often, Vibration analysis or Pitch Witch?

Vibration analysis ships an update every 3 months, and Pitch Witch every 9 days. Most recently, Vibration analysis was updated on October 26, 2026 and Pitch Witch on October 24, 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.*