# Vibration Meter, seismograph vs Profometer

The clearest difference is in-app purchases: Profometer at none against Vibration Meter, seismograph's 1. Profometer also leads on update cadence (every 3 months vs every 7 months). Vibration Meter, seismograph's advantage is ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

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

Vibration Meter, seismograph ships an update every 7 months, Profometer every 3 months. The most recent releases landed on October 2, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Vibration Meter, seismograph | Profometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (717 ratings)](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201/reviews)** | — |
| Number of ratings | **717** | — |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 495 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [ExaMobile S.A.](https://appshunter.io/developer/506014841) | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) |

## What reviewers say

### 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 |


### Profometer

[App page](https://appshunter.io/ios/app/profometer/id1638693429)

**In-app purchases:** none


## Frequently asked questions

### Is Vibration Meter, seismograph free?

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

### Is Profometer free?

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

### Do Vibration Meter, seismograph or Profometer have ads?

Profometer shows ads; Vibration Meter, seismograph does not.

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

Vibration Meter, seismograph ships an update every 7 months, and Profometer every 3 months. Most recently, Vibration Meter, seismograph was updated on October 2, 2026 and Profometer on September 14, 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.*