# Seismometer

> Measures vibrations and movements using device accelerometer, displays energy on a logarithmic scale. (iPhone/iPad app by FFFF00 Agents AB.)

- Source: https://appshunter.io/ios/app/seismometer/id288966259 (this page in markdown: same URL + `.md`)
- Developer: [FFFF00 Agents AB](https://appshunter.io/developer/288966262)
- Category: Utilities, Entertainment
- Price: $1.99
- Rating: 3.30/5 from 17 App Store ratings · 456 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 3 MB
- Languages: American English
- Released: 2019-02-01
- Data updated: 2026-09-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/seismometer/id288966259/reviews.md

## What is Seismometer?

Measure everything that vibrates, shakes or moves. Or why not an actual earthquake?

Seismometer uses your iPhone's built in accelerometer to measure movements in two axes, calculate the resulting energy and draw the results on a rolling logarithmic scale.


Features:

 * Different signal filters
 * Highly configurable
 * Recordings
 * CSV exporting of recordings
 * UDP Streaming

http://yellowagents.com/seismometer/ for more info and examples of how to use the streaming protocol.

## Key features

- Measure vibrations and movements
- Uses device accelerometer
- Calculates energy of movements
- Logarithmic scale display
- Signal filters
- Recordings and CSV export
- UDP Streaming

## What do users think of Seismometer?

Overall sentiment: neutral

**Pros**

- 🚀 Sensitive and accurate
- 👍 Great for demonstrating vibrations
- 👍 Useful for photography and audio
- 👍 Visually appealing
- 👍 Clever use of accelerometer

**Cons**

- 🐛 Crashes frequently
- 🐛 Inaccurate readings even on flat surfaces
- 🔋 Drains battery quickly
- 🔒 No security or privacy features
- 👎 Limited functionality and customization

**Commonly reported bugs**

- Crashes when trying to view recordings
- Unresponsive controls
- Incompatible with newer iPhone models
- Screen turns off unexpectedly

**Most requested features**

- Pause and scroll back through recordings
- Save and email recorded data
- Adjustable sensitivity settings
- Richter scale or other measurement units
- Ability to record and review vibration history

## Recent user reviews (10 of 456)

All indexed reviews: https://appshunter.io/ios/app/seismometer/id288966259/reviews.md

### 5/5 — Best app

*2026-07-05, version 2.4*

Of all seismometer apps

### 2/5 — Crashes immediately upon launch

*2026-05-29, version 2.4*

I don’t want this to be my permanent review of the product. I had been using it with great results for a while, and then for some reason now it simply quits as soon as I launch it. I have tried uninstalling and reinstalling, restarting the phone, etc. But the app simply will not run. I would like it to be fixed. Any thoughts?

### 2/5 — .

*2021-09-20*

Tolle App aber sollte dringend mal ein Update bekommen besonders für die Auflösung des iPhone 12/13 Pro Max....

Korrigiere auf 5 Sterne sobald sich darum mal etwas gekümmert wurde.

### 4/5 — Export to PDF

*2021-07-21, version 2.4*

Can the option to export to a PDF file be added?

### 1/5 — Export functions don’t work

*2021-04-26, version 2.4*

Export functions don’t work App shuts down with no error message.

### 1/5 — Crashes

*2020-10-12, version 2.4*

Crashes so much, app needs to be updated. Waste of $2

### 3/5 — How do I contact the creator of this app?

*2019-11-24, version 2.4*

This is an excellent app, very useful. However I’d really like more information about the app eg what do the numbers mean at the side of the graph are they seconds or minutes? And how do I use the app eg where can I store data and how to send by email? If the creators of this app are reading this, I’d still really like some help with my questions here. How do I contact you, do you have an email address please? Many thanks

### 1/5 — Doesn’t let you export data

*2019-04-07, version 2.4*

Having just bought the app to use for a project, manage to record necessary data, but when trying to export csv via email crashes and won’t let you send email.

### 1/5 — No good

*2019-02-24, version 2.4*

This is really a terrible application. I want my money back. I am a specialist in earthquake engineer and this app is useless

### 2/5 — Great app...but...

*2018-09-07, version 2.4*

It is great app for recording vibrations and it is very sensitive, but it constantly crashes during playback of recording. Wasted money!

## Frequently asked questions about Seismometer

### What does the Seismometer app do?

The app utilizes your iPhone's built-in accelerometer to detect and measure vibrations, shakes, and movements. It calculates the energy associated with these movements and presents the data on a rolling logarithmic scale.

### What are the key features of Seismometer?

Key features include the ability to measure vibrations, use the device's accelerometer, calculate movement energy, display results on a logarithmic scale, apply different signal filters, record measurements, export recordings as CSV files, and utilize UDP streaming.

### Is Seismometer free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free experience for users.

### What devices is Seismometer compatible with?

The description specifically mentions using the 'iPhone's built in accelerometer,' suggesting compatibility with iPhones. Further details on specific iOS versions or other device compatibility can be found on the developer's website.

### How can I use the Seismometer app?

You can use the app to measure any kind of vibration, shaking, or movement, including potentially detecting actual earthquakes. The app provides tools like signal filters, recording capabilities, and CSV exporting for detailed analysis.

## Version history (last 5 releases)

### 2.4 — 2019-02-01

This update from Apple will improve the functionality of this app. No new features are included.

iOS 11 support

### 2.3 — 2013-04-25

iPhone 5 support

### 2.2 — 2012-05-01

–  Added Scientific mode - for professionals who use the recording feature
 –  Export recordings via iTunes
 –  Support for UDP unicasting over cellular networks
 –  Improved sampling rates and accuracy for recordings
 –  3D drawing on iPhone4+ devices
 –  bugfixes and performance improvements

Big thanks to Sandia National Laboratories for sponsoring this update!

### 2.1 — 2011-03-17

* Increased sensitivity
 * 4 different filters!
 * Retina graphics
 * Performance improvements on iPhone 4
 * Settings can now be accessed from within the app

### 2.0 — 2010-05-31

* Recordings
* Exporting recordings
* Stream accelerometer data over the network (see http://yellowagents.com/seismometer/ for more information)
* New design
* Improved performance on all devices

## Apps similar to Seismometer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Vibration Detector](https://appshunter.io/ios/app/vibration-detector/id1097738573) | 1.0 (1) | $2.99 | Utilities |
| [Earthquakes: Earthquake Map](https://appshunter.io/ios/app/earthquakes-earthquake-map/id879715693) | 3.8 (10) | $0.99 | Utilities |
| [DeepDays Ticket Scanner](https://appshunter.io/ios/app/deepdays-ticket-scanner/id6760829271) | — | Free | Utilities |
| [MP3 Converter: Videos to Audio](https://appshunter.io/ios/app/mp3-converter-videos-to-audio/id6758502961) | — | Free | Utilities |
| [Voltage Drop Pro](https://appshunter.io/ios/app/voltage-drop-pro/id1601052433) | — | $3.99 | Utilities |
| [Ampere Watch](https://appshunter.io/ios/app/ampere-watch/id6502711943) | — | $3.99 | Utilities |

## More apps by FFFF00 Agents AB

- [Laundry Care](https://appshunter.io/ios/app/laundry-care/id353435242)
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All apps by FFFF00 Agents AB: https://appshunter.io/developer/288966262

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*