# VR Mobile vs Hamm Seismograph

The clearest difference is rating: VR Mobile at 4.7 against Hamm Seismograph's 4.1. VR Mobile also leads on review sentiment (100% vs 75%) and update cadence (every 4 months vs every 14 months). Hamm Seismograph's advantage is iOS requirement (9.0 vs 13.0). On price, ratings volume, 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.

VR Mobile holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 11 and 17 respectively. Written reviews point the same way: 100% of VR Mobile's written reviews are positive against 75% of Hamm Seismograph's.

VR Mobile ships an update every 4 months, Hamm Seismograph every 14 months. Both last shipped on September 9, 2026.

## The numbers

| Metric | VR Mobile | Hamm Seismograph |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (11 ratings)](https://appshunter.io/ios/app/vr-mobile-vibration-testing/id469459743/reviews)** | [4.1 (17 ratings)](https://appshunter.io/ios/app/hamm-seismograph/id704450894/reviews) |
| Number of ratings | 11 | **17** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 14 months |
| Monetization | Free | Free |
| Size | 34 MB | 1 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vibration Research Corporation](https://appshunter.io/developer/469459746) | [i-NOVATiON GmbH](https://appshunter.io/developer/295851560) |

## What reviewers say

### VR Mobile

[App page](https://appshunter.io/ios/app/vr-mobile-vibration-testing/id469459743)

This app provides live vibration test monitoring and analysis by connecting to specific hardware. It also includes a suite of engineering calculators, a noise meter, an accelerometer, and a strobe light for various testing and measurement needs.

**Highlights:** Live vibration test monitoring, Engineering calculators, Noise SPL meter, Accelerometer, Strobe light, Remote test control

**Features:** Vision Pro support

**In-app purchases:** none


### Hamm Seismograph

[App page](https://appshunter.io/ios/app/hamm-seismograph/id704450894)

This utility app visualizes structure-borne swings caused by construction machinery, helping to identify potentially damaging vibrations. It offers real-time display, adjustable presentation modes, and diagram freezing for clear analysis.

**Highlights:** Real-time swing display, Adjustable presentation modes, Line width selection, Diagram freeze function, Sunlight-readable display, Local data processing

**In-app purchases:** none


## Frequently asked questions

### Is VR Mobile free?

VR Mobile is free to download, with no in-app purchases.

### Is Hamm Seismograph free?

Hamm Seismograph is free to download, with no in-app purchases.

### Which has better reviews, VR Mobile or Hamm Seismograph?

VR Mobile is rated higher. VR Mobile averages 4.7 out of 5 from 11 ratings, while Hamm Seismograph averages 4.1 from 17 ratings.

### Do VR Mobile or Hamm Seismograph have ads?

Neither VR Mobile nor Hamm Seismograph shows ads.

### Which is updated more often, VR Mobile or Hamm Seismograph?

VR Mobile ships an update every 4 months, and Hamm Seismograph every 14 months. Most recently, VR Mobile was updated on September 9, 2026 and Hamm Seismograph on September 9, 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.*