# Hamm Seismograph vs Vibration Meter, seismograph

The clearest difference is rating: Vibration Meter, seismograph at 4.7 against Hamm Seismograph's 4.1. Vibration Meter, seismograph also leads on ratings volume (732 vs 17). Hamm Seismograph's advantage is in-app purchases (none vs 1) and review sentiment (77% vs 42%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Vibration Meter, seismograph sells 1 one-off in-app purchase. Hamm Seismograph asks for nothing beyond the download.

Vibration Meter, seismograph holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Vibration Meter, seismograph has 732 ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 77% of Hamm Seismograph's written reviews are positive against 42% of Vibration Meter, seismograph's, so the app with the better star average is not the one people write more warmly about.

Hamm Seismograph ships an update every 14 months, Vibration Meter, seismograph every 7 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Hamm Seismograph | Vibration Meter, seismograph |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (17 ratings)](https://appshunter.io/ios/app/hamm-seismograph/id704450894/reviews) | **[4.7 (732 ratings)](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201/reviews)** |
| Number of ratings | 17 | **732** |
| Positive reviews | **76.9% of reviews** | 42.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 7 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 18 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [i-NOVATiON GmbH](https://appshunter.io/developer/295851560) | [ExaMobile S.A.](https://appshunter.io/developer/506014841) |

## What reviewers say

### 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

**Features:** Vision Pro support

**In-app purchases:** none


### Vibration Meter, seismograph

[App page](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201)

This application uses your phone's accelerometer to measure and record vibrations from various sources, including earthquakes and everyday objects. It displays ground motion on a graph and uses an instrumental intensity scale for analysis. You can also monitor and share your measurement results.

**Highlights:** Measures vibration strength, Detects seismic waves, Uses accelerometer for analysis, Displays ground motion graph, Utilizes instrumental intensity scale, Monitors and shares results

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Hamm Seismograph free?

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

### Is Vibration Meter, seismograph free?

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

### Which has better reviews, Hamm Seismograph or Vibration Meter, seismograph?

Vibration Meter, seismograph is rated higher. Hamm Seismograph averages 4.1 out of 5 from 17 ratings, while Vibration Meter, seismograph averages 4.7 from 732 ratings.

### Do Hamm Seismograph or Vibration Meter, seismograph have ads?

Neither Hamm Seismograph nor Vibration Meter, seismograph shows ads.

### Which is updated more often, Hamm Seismograph or Vibration Meter, seismograph?

Hamm Seismograph ships an update every 14 months, and Vibration Meter, seismograph every 7 months. Most recently, Hamm Seismograph was updated on November 6, 2026 and Vibration Meter, seismograph on November 6, 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.*