# Vibration Pro vs IRISS SiteWalk

The clearest difference is price: IRISS SiteWalk at Free against Vibration Pro's $49.99. IRISS SiteWalk also leads on in-app purchases (none vs 2) and update cadence (every 9 days vs every 2 months). Vibration Pro's advantage is chart position (#124 vs unranked). On ads, device support and iOS requirement there is nothing between them.

IRISS SiteWalk is free to download; Vibration Pro costs $49.99 up front. Vibration Pro sells 2 in-app purchases, starting at $19.99 per month. IRISS SiteWalk asks for nothing beyond the download.

Vibration Pro ships an update every 2 months, IRISS SiteWalk every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Vibration Pro | IRISS SiteWalk |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/vibration-pro/id1521077799/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Paid | — |
| Best chart rank | **#124** | — |
| Size | 14 MB | 74 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Diffraction Limited Design LLC](https://appshunter.io/developer/294410307) | [IRISS Inc](https://appshunter.io/developer/1245323320) |

## What reviewers say

### Vibration Pro

[App page](https://appshunter.io/ios/app/vibration-pro/id1521077799)

**Currently charting:** #124 Top Paid · Business (US App Store)

Analyze vibration spectrums using your device's sensors or external accelerometers. Identify machinery defects, monitor equipment, and document findings with flexible data acquisition and reporting.

**Highlights:** Vibration spectrum analysis, Internal accelerometer and gyroscope support, External USB accelerometer integration, Time series data acquisition, FFT frequency spectra display, Predictive maintenance diagnostics, Scripting for guided measurements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Renewing | $19.99 | per month |
| Annual renewing | $214.99 | per year |


### IRISS SiteWalk

[App page](https://appshunter.io/ios/app/iriss-sitewalk/id6759625809)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vibration Pro free?

Vibration Pro costs $49.99, and also offers in-app purchases.

### Is IRISS SiteWalk free?

IRISS SiteWalk is free to download, with no in-app purchases.

### Do Vibration Pro or IRISS SiteWalk have ads?

Neither Vibration Pro nor IRISS SiteWalk shows ads.

### Which is updated more often, Vibration Pro or IRISS SiteWalk?

Vibration Pro ships an update every 2 months, and IRISS SiteWalk every 9 days. Most recently, Vibration Pro was updated on November 3, 2026 and IRISS SiteWalk on October 31, 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.*