# Vibration Diagnostic Service vs Spindle Dynamics Studio

The clearest difference is device support: Vibration Diagnostic Service at 3 against Spindle Dynamics Studio's 1. Vibration Diagnostic Service also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vibration Diagnostic Service ships an update every 2 months, Spindle Dynamics Studio every 3 months. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Vibration Diagnostic Service | Spindle Dynamics Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/vibration-diagnostic-service/id1634378327/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 120 MB | 106 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Johnson Controls, Inc.](https://appshunter.io/developer/503559091) | [Sens-OS](https://appshunter.io/developer/1533837951) |

## What reviewers say

### Vibration Diagnostic Service

[App page](https://appshunter.io/ios/app/vibration-diagnostic-service/id1634378327)

This service helps diagnose machinery health by analyzing vibratory forces emitted by HVAC and rotating equipment. It facilitates the creation of maintenance plans to prevent premature failure and downtime. Data is collected wirelessly via a connected device and analyzed by certified professionals.

**Highlights:** Vibration data collection, Wireless data acquisition, Cloud-based analysis, Predictive maintenance planning, Certified analyst reports, Email report delivery

**In-app purchases:** none


### Spindle Dynamics Studio

[App page](https://appshunter.io/ios/app/spindle-dynamics-studio/id1661428624)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vibration Diagnostic Service free?

Vibration Diagnostic Service is free to download, with no in-app purchases.

### Is Spindle Dynamics Studio free?

Spindle Dynamics Studio is free to download, with no in-app purchases.

### Do Vibration Diagnostic Service or Spindle Dynamics Studio have ads?

Neither Vibration Diagnostic Service nor Spindle Dynamics Studio shows ads.

### Which is updated more often, Vibration Diagnostic Service or Spindle Dynamics Studio?

Vibration Diagnostic Service ships an update every 2 months, and Spindle Dynamics Studio every 3 months. Most recently, Vibration Diagnostic Service was updated on November 4, 2026 and Spindle Dynamics Studio on November 7, 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.*