# Hamm Seismograph vs Vibration analysis

The clearest difference is in-app purchases: Hamm Seismograph at none against Vibration analysis's 2. Hamm Seismograph also leads on review sentiment (75% vs 57%) and iOS requirement (9.0 vs 15.6). Vibration analysis's advantage is update cadence (every 3 months vs every 14 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Vibration analysis sells 2 one-off in-app purchases. Hamm Seismograph asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.1 for Hamm Seismograph against 4.0 for Vibration analysis. Both are backed by a comparable volume of ratings — 17 and 43 respectively. Written reviews are what separate them: 75% of Hamm Seismograph's written reviews are positive against 57% of Vibration analysis's.

Hamm Seismograph ships an update every 14 months, Vibration analysis every 3 months. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Hamm Seismograph | Vibration analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (17 ratings)](https://appshunter.io/ios/app/hamm-seismograph/id704450894/reviews)** | [4.0 (43 ratings)](https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews) |
| Number of ratings | 17 | **43** |
| Positive reviews | **75.0% of reviews** | 57.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 5 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [i-NOVATiON GmbH](https://appshunter.io/developer/295851560) | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) |

## 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

**In-app purchases:** none


### Vibration analysis

[App page](https://appshunter.io/ios/app/vibration-analysis/id817385888)

This app analyzes phone accelerometer data to create a vibration spectrum. It helps evaluate vibration strength, frequency, and the rotation speed of various mechanisms like fans and motors. Useful for quality checks, malfunction detection, and balancing homemade rotating parts.

**Highlights:** Vibration spectrum analysis, Rotation speed evaluation, Mechanism quality assessment, Malfunction monitoring, Customizable FFT size, Multiple units of measurement, Peak frequency detection

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Settings | $2.99 | one-time |
| External accelerometer | $2.99 | one-time |


## Frequently asked questions

### Is Hamm Seismograph free?

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

### Is Vibration analysis free?

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

### Which has better reviews, Hamm Seismograph or Vibration analysis?

Hamm Seismograph is rated higher. Hamm Seismograph averages 4.1 out of 5 from 17 ratings, while Vibration analysis averages 4.0 from 43 ratings.

### Do Hamm Seismograph or Vibration analysis have ads?

Neither Hamm Seismograph nor Vibration analysis shows ads.

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

Hamm Seismograph ships an update every 14 months, and Vibration analysis every 3 months. Most recently, Hamm Seismograph was updated on September 9, 2026 and Vibration analysis on September 21, 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.*