# Vibration Meter, seismograph vs Sensor Logger

The clearest difference is update cadence: Sensor Logger at weekly against Vibration Meter, seismograph's every 7 months. Vibration Meter, seismograph's advantage is ratings volume (717 vs 111) and iOS requirement (12.0 vs 16.4). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Vibration Meter, seismograph sells 1 one-off in-app purchase and Sensor Logger sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Vibration Meter, seismograph against 4.8 for Sensor Logger. That said, the two scores are not equally well evidenced: Vibration Meter, seismograph has 717 ratings behind it against 111, so its average is the more settled of the two. Written reviews are what separate them: 42% of Vibration Meter, seismograph's written reviews are positive against 44% of Sensor Logger's.

Vibration Meter, seismograph ships an update every 7 months, Sensor Logger weekly. Both last shipped on September 23, 2026.

## The numbers

| Metric | Vibration Meter, seismograph | Sensor Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (717 ratings)](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201/reviews) | **[4.8 (111 ratings)](https://appshunter.io/ios/app/sensor-logger/id1531582925/reviews)** |
| Number of ratings | **717** | 111 |
| Positive reviews | 41.7% of reviews | **44.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 18 MB | 81 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [ExaMobile S.A.](https://appshunter.io/developer/506014841) | [Choi Tsz Hei](https://appshunter.io/developer/1531583287) |

## 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 |


### Sensor Logger

[App page](https://appshunter.io/ios/app/sensor-logger/id1531582925)

This app collects and displays data from various device sensors, including motion, GPS, and audio. It offers background recording, interactive plots, and multiple export formats. Advanced features allow for data streaming, systematic data collection from other users, and creating shareable data-driven dashboards.

**Highlights:** One-tap logging, Background recording, Interactive plot visualization, Data streaming (HTTP/MQTT), CSV, JSON, Excel, KML exports, Create and share data dashboards, Systematic data collection studies

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $4.99 | per month |
| Pro Monthly | $9.99 | per month |
| Ultimate Monthly | $24.99 | per month |
| Plus Yearly | $49.99 | per year |
| Pro Yearly | $99.99 | per year |
| Ultimate Yearly | $249.99 | per year |


## Frequently asked questions

### Is Vibration Meter, seismograph free?

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

### Is Sensor Logger free?

Sensor Logger is free to download, with in-app purchases available.

### Which has better reviews, Vibration Meter, seismograph or Sensor Logger?

Sensor Logger is rated higher. Vibration Meter, seismograph averages 4.7 out of 5 from 717 ratings, while Sensor Logger averages 4.8 from 111 ratings.

### Do Vibration Meter, seismograph or Sensor Logger have ads?

Neither Vibration Meter, seismograph nor Sensor Logger shows ads.

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

Vibration Meter, seismograph ships an update every 7 months, and Sensor Logger weekly. Most recently, Vibration Meter, seismograph was updated on September 23, 2026 and Sensor Logger on September 23, 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.*