# iSeismometer — Feel the Pulse of the Earth

> iPhone seismometer app for detecting and visualizing vibrations. (iPhone/iPad app by ObjectGraph LLC.)

- Source: https://appshunter.io/ios/app/iseismometer/id304190739 (this page in markdown: same URL + `.md`)
- Developer: [ObjectGraph LLC](https://appshunter.io/developer/284700705)
- Category: Education, Utilities
- Price: Free
- Rating: 3.60/5 from 170 App Store ratings · 271 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 2 MB
- Languages: American English
- Released: 2009-02-22
- Data updated: 2026-08-20
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/iseismometer/id304190739/reviews.md

## What is iSeismometer?

Start iSeismometer, leave it on your desk, then try tap somewhere. You will realize how sensitive iPhone is!

This is our new project to convert iPhone to seismometer. We created for fun and educational use, such as data collecting device.

---------------
In Total Ranking:
- #3 in Italy 
- #28 in Japan


In Education Category Ranking:
- #1 in Japan
- #11 in US! (*new*)
- #1 in Austoria,Finland and Greece
- #3 in Norway
- #5 in Japan and Belgium
- #8 in Denmark
- #9 in Norway
---------------

Please feel free to give us suggestion and feedback (iphone@objectgraph.com).

[Instructions and Information]
-iSeismometer stores data based on the frequency setting. the more the frequency, the sampling rate is increased per second
-If you suspend recording, you can drag the screen to re-track the previous data.
-X-Y-Z illustrated
- Lots of options... See the screenshots!

[User's Comments]
-"While I can see this has real possible applications, the only semi-serious use I've had is showing my 95 year old grandmother her washing machine was out of balance. (fixed it) The look on her face was PRICELESS. Thanks!" - by KeyboardError
-"Can't stop playing around it!" - by SeatlleBoiler
-"I sat on my desk and watched it as I wrote  and used  my laptop it picks up everything" - by Stretch Man
-"Unfathomable coolness" - by AbrahamKafi
-"This tool is really great , imagining a real potential" - by ITester
-"Cool to put subwoofer" - by thatkid

We were covered in "The Independent Guide To The iPhone 3Gs" By Nik Rawlinson. Here is his review

"This is a novelty app but one that also helps you learn something new. The concept is simple. You just leave tour iPhone on hard surface with the app fired up then tap somewhere nearby and watch what happens.

It looks like something you’d find in a hospital, but it’s one of those things that is very captivating once you’ve looked at it once. In fact, we completely lost track of time when we played with this app as we tried out different tap-based compositions – MTV had nothing on us during this review.

You’ve got the ability to pause the ‘recording’ of movement around the iPhone, in addition to looking at colorful spectrum graph of what occurred in the three seconds prior to requesting that data.

We didn’t quite understand what the chart was showing us. But it looked pretty nonetheless and it’ll make you look über intelligent to anyone looking over your shoulder .

The app will monitor movement for 10 seconds and report back on the last three seconds of activity. You can then upload that data in snazzy graph format to the web for all to see. Old friends will probably think you’ve changed career."

## Key features

- Converts iPhone to seismometer
- Detects and visualizes vibrations
- Data collecting capabilities
- Educational use
- Adjustable frequency settings
- Re-track previous data
- X-Y-Z illustrated graphs

## What do users think of iSeismometer?

Overall sentiment: positive

**Pros**

- 🚀 Sensitive and accurate
- 👍 Simple and easy to use
- 💡 Useful for various applications (e.g. monitoring vibrations, detecting heartbeat)

**Cons**

- 🐛 Crashes or freezes on newer devices
- 🔋 High battery consumption
- 🔒 Lacks security/privacy features (e.g. no option to disable data transmission)

**Commonly reported bugs**

- Buttons/controls not working on newer iOS versions
- Keyboard not appearing in text input fields
- Inconsistent performance across device models

**Most requested features**

- Add sensitivity control
- Implement zero control for reference plane
- Increase recording time
- Improve UI/UX (e.g. color coding, scrolling, chart speed control)
- Implement Richter scale or other measurement units
- Add data export/sharing options (e.g. email, save to file)

## Recent user reviews (10 of 271)

All indexed reviews: https://appshunter.io/ios/app/iseismometer/id304190739/reviews.md

### 5/5 — WOW

*2023-11-24*

WOW

### 5/5 — Plz do this

*2021-01-16*

I used this years ago and it was amazing but can you plz update it!!!!

### 1/5 — It would be better if it could be used on all iPhones

*2019-11-10, version 1.3*

If only this app were to be used on newer iPhones the could use it just like I did on my older iPhone.

### 5/5 — Please update this app for iso 11

*2019-05-03*

Please update !!!

### 5/5 — アップデート希望します！

*2019-04-15*

他の振動計アプリとは比較にならない程に優秀なアプリです。iosをアップデートしたら使えなくなっちゃいました。非常に困っています。

### 5/5 — 待更新

*2019-03-28*

很好用的一款软件，就是不更新ios12用不了了，求更新！

### 5/5 — Обновление

*2019-03-06*

Обновите приложение пожалуйста.

### 5/5 — Great

*2019-01-23*

Great but doesn’t work on iOS 11+

### 5/5 — Good APP.

*2018-12-18*

Please update this APP.

### 1/5 — Keine aktuelle App

*2018-11-13*

Entwickler muß app für IOS 11 aktualisieren

## Frequently asked questions about iSeismometer

### What does the iSeismometer app do?

This app transforms your iPhone into a sensitive seismometer. It allows you to detect and visualize vibrations around your device, making it useful for educational purposes or data collection.

### What are the key features of iSeismometer?

Key features include converting your iPhone into a seismometer, detecting and visualizing vibrations, data collecting capabilities, adjustable frequency settings for sampling rate, and the ability to re-track previous data by dragging the screen.

### Is iSeismometer 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 kind of data does iSeismometer collect?

The app stores data based on the frequency setting you choose. A higher frequency means an increased sampling rate per second, allowing for more detailed vibration data collection.

### What are some common use cases for iSeismometer?

Common use cases include educational experiments to learn about physics and vibrations, data collection for personal projects, or simply for fun to explore the sensitivity of your iPhone to external movements.

## Version history (last 5 releases)

### 1.6 — 2024-05-04

bug fixes

### 1.5 — 2024-04-25

bug fixes

### 1.4 — 2024-04-23

update to latest version of iOS
dark mode support

### 1.3 — 2011-03-21

Donation Banner

### 1.2 — 2010-05-11

-Wifi Transmit
-Organized Settings

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## More apps by ObjectGraph LLC

- [iRetroPhone - Rotary Dialer](https://appshunter.io/ios/app/iretrophone-rotary-dialer/id284700702)
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- [Cat Piano Free HD](https://appshunter.io/ios/app/cat-piano-free-hd/id376752605)
- [Halloween Sound Shelf](https://appshunter.io/ios/app/halloween-sound-shelf/id398908619)
- [Geo Measure: Area & Distance](https://appshunter.io/ios/app/geo-measure-area-and-distance/id451326903)

All apps by ObjectGraph LLC: https://appshunter.io/developer/284700705

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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 2026-08-20.*