# Shimmy Diagnoser vs AcceloVibe

The clearest difference is price: AcceloVibe at Free against Shimmy Diagnoser's $17.99. AcceloVibe also leads on rating (5.0 vs 3.5) and review sentiment (100% vs 63%). Shimmy Diagnoser's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 4 months). On ads there is nothing between them.

AcceloVibe is free to download; Shimmy Diagnoser costs $17.99 up front. AcceloVibe sells 1 one-off in-app purchase. Shimmy Diagnoser asks for nothing beyond the download.

AcceloVibe holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Shimmy Diagnoser has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 63% of Shimmy Diagnoser's written reviews are positive against 100% of AcceloVibe's.

Shimmy Diagnoser ships an update every 2 months, AcceloVibe every 4 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Shimmy Diagnoser | AcceloVibe |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | [3.5 (8 ratings)](https://appshunter.io/ios/app/shimmy-diagnoser/id1215880972/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/accelovibe/id6747295321/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 3 MB | 68 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DOAO Consulting AB](https://appshunter.io/developer/1181701800) | [Eyal Vardi](https://appshunter.io/developer/988684101) |

## What reviewers say

### Shimmy Diagnoser

[App page](https://appshunter.io/ios/app/shimmy-diagnoser/id1215880972)

This app acts as a vibration meter for your vehicle, detecting and analyzing vibrations to identify potential issues. It provides real-time graphs and statistics to help diagnose problems with engines, tires, or propshafts, assisting both DIY enthusiasts and professionals.

**Highlights:** Vibration detection and analysis, Real-time vibration graphing, Identification of vibration sources (engine, tire, propshaft), Vehicle database integration, Data storage and statistics, Built-in RPM calculations

**In-app purchases:** none


### AcceloVibe

[App page](https://appshunter.io/ios/app/accelovibe/id6747295321)

This tool transforms your iPhone into a car engine vibration analyzer. Simply place your phone on the hood while the engine idles to get an easy-to-read profile of vibration patterns and track stability over time.

**Highlights:** Engine signature technology, Color-coded stability indicators, Advanced vibration graphs, Trend tracking for anomalies, Vehicle profile saving, Used car assessment tool, Shareable PDF reports

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AcceloVibe | $6.99 | one-time |


## Frequently asked questions

### Is Shimmy Diagnoser free?

Shimmy Diagnoser costs $17.99, with no in-app purchases.

### Is AcceloVibe free?

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

### Which has better reviews, Shimmy Diagnoser or AcceloVibe?

AcceloVibe is rated higher. Shimmy Diagnoser averages 3.5 out of 5 from 8 ratings, while AcceloVibe averages 5.0 from 1 ratings.

### Do Shimmy Diagnoser or AcceloVibe have ads?

Neither Shimmy Diagnoser nor AcceloVibe shows ads.

### Which is updated more often, Shimmy Diagnoser or AcceloVibe?

Shimmy Diagnoser ships an update every 2 months, and AcceloVibe every 4 months. Most recently, Shimmy Diagnoser was updated on October 24, 2026 and AcceloVibe 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.*