# Ultrasonic Repeller vs Vibration analysis

The clearest difference is price: Vibration analysis at Free against Ultrasonic Repeller's $0.59. Vibration analysis also leads on rating (4.0 vs 3.6) and review sentiment (57% vs 44%). Ultrasonic Repeller's advantage is in-app purchases (none vs 2). On ratings volume, update cadence, ads and device support there is nothing between them.

Vibration analysis is free to download; Ultrasonic Repeller costs $0.59 up front. Vibration analysis sells 2 one-off in-app purchases. Ultrasonic Repeller asks for nothing beyond the download.

Vibration analysis holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 51 and 43 respectively. Written reviews point the same way: 44% of Ultrasonic Repeller's written reviews are positive against 57% of Vibration analysis's.

Ultrasonic Repeller ships an update every 2 months, Vibration analysis every 3 months. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Ultrasonic Repeller | Vibration analysis |
| --- | --- | --- |
| Price | $0.59 | **Free** |
| Rating | [3.6 (51 ratings)](https://appshunter.io/ios/app/ultrasonic-repeller/id445318668/reviews) | **[4.0 (43 ratings)](https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews)** |
| Number of ratings | **51** | 43 |
| Positive reviews | 43.6% of reviews | **57.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 5 MB |
| Requires iOS | 16.1 | **15.6** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandr Balyberdin](https://appshunter.io/developer/336185043) | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) |

## What reviewers say

### Ultrasonic Repeller

[App page](https://appshunter.io/ios/app/ultrasonic-repeller/id445318668)

This app uses ultrasound technology to create a protective barrier against insects, rodents, and aggressive dogs. It also offers features for personal space and experimental bat deterrence, with advanced controls and Apple Watch integration.

**Highlights:** Insect repellent, Rodent deterrent, Dog deterrent, Personal space protector, Apple Watch support, High-precision frequency generator, Background mode

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

**In-app purchases:** none

**What reviewers like**

- ✅ Effective on mosquitoes and insects
- ✅ Works on rodents when volume is high
- ✅ Free app with no cost
- ✅ Simple and intuitive interface
- ✅ Multiple pest settings available

**What reviewers complain about**

- ❌ Inconsistent effectiveness across different pests
- ❌ Doesn't work on dogs or older animals
- ❌ Requires high volume to be effective
- ❌ Limited range of effectiveness
- ❌ Effectiveness diminishes over time as pests adapt

**Reported bugs**

- App crashes on startup (multiple iOS versions)
- Incompatible with iOS 8 and older versions
- App force closes when screen is locked
- Crashes on iPhone 6s and later models
- No sound output on iPad 1

**Requested features**

- Add cat repeller mode
- Add bat repeller mode
- Add ant repeller mode
- Add fly repeller mode
- Add snake repeller mode


### 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 Ultrasonic Repeller free?

Ultrasonic Repeller costs $0.59, with no in-app purchases.

### Is Vibration analysis free?

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

### Which has better reviews, Ultrasonic Repeller or Vibration analysis?

Vibration analysis is rated higher. Ultrasonic Repeller averages 3.6 out of 5 from 51 ratings, while Vibration analysis averages 4.0 from 43 ratings.

### Do Ultrasonic Repeller or Vibration analysis have ads?

Neither Ultrasonic Repeller nor Vibration analysis shows ads.

### Which is updated more often, Ultrasonic Repeller or Vibration analysis?

Ultrasonic Repeller ships an update every 2 months, and Vibration analysis every 3 months. Most recently, Ultrasonic Repeller was updated on September 26, 2026 and Vibration analysis on September 21, 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.*