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iSeismometer

iSeismometer

Your phone is a seismograph

172 ratings
272 reviews
📚 Education
🔧 Utilities
Free

Details

Released
February 22, 2009
Updated
September 15, 2026

Features

Developer

ObjectGraph LLC
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About

Transform your iPhone into a sensitive seismometer to detect and visualize vibrations. Explore its educational and data-collecting capabilities for fun or serious applications.

✓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
Show original description

What users say about iSeismometer

Reviews of iSeismometer are mostly positive: the Education app is rated 3.6/5 from 172 App Store ratings. What users like most: sensitive and accurate, simple and easy to use. Top complaints: crashes or freezes on newer devices, high battery consumption. Summarized from real user reviews.

Positive things

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

Negative things

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

What's New in iSeismometer

1.7.1

September 15, 2026

• 1.7.1: the app now speaks German, French, Spanish and Japanese. Connect to your Mac by address on networks that block Bonjour; the Mac shows its address and port under Receiver iSeismometer has been rebuilt from the ground up. • Smooth, fast charts that scroll back through up to an hour of history while recording continues • Live spectrum with adjustable range, window, and averaging • Event detection: tremors are flagged with peak acceleration, duration, and dominant frequency • Automatic recordings, browsable by day, with CSV export and Files app access • Gravity filter with a selectable corner frequency • USGS earthquakes on a globe, with time and magnitude filters • Mac app redesigned as a control center for every device streaming to it • Auto-reconnect to your Mac, charging awareness, and a keep-awake option • Dark mode, iPad layout, and a new launch screen

More

User reviews

Most RecentHighest RatedLowest Rated

WOW

WOW
Iinfantilepillock

Response from developer

Danke. iSeismometer 1.7 (September 2026) ist komplett neu gebaut für aktuelle iPhones, iPads und Macs: Live-Diagramme mit einer Stunde Verlauf, Ereigniserkennung, automatische Aufzeichnungen mit CSV-Export und eine Mac-App, die jedes Telefon im Haus empfängt.

Plz do this

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

It would be better if it could be used on all iPhones

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

Please update this app for iso 11

Please update !!!
Ccseg1

アップデート希望します！

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。
汎汎用旋盤使い

Response from developer

お待たせしました。iSeismometer 1.7（2026年9月）は現行のiPhone、iPad、Mac向けに一から作り直しました。1時間分の履歴をさかのぼれるライブ波形、イベント検出、CSV書き出し付きの自動記録、家中のiPhoneを受信するMacアプリを備えています。

See 267 more reviews

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User experience

🐞

Reported Bugs

3 issues

Buttons/controls not working on newer iOS versions

Bug

Keyboard not appearing in text input fields

Bug

Inconsistent performance across device models

Bug
✨

Requested Features

6 requests

Add sensitivity control

Feature

Implement zero control for reference plane

Feature

Increase recording time

Feature

Improve UI/UX (e.g. color coding, scrolling, chart speed control)

Feature

Implement Richter scale or other measurement units

Feature

Add data export/sharing options (e.g. email, save to file)

Feature

FAQ

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.