This app was developed for researchers so that they may capture accelerometer, gyroscope, and magnetometer data directly from their iOS device to use for research or play around with. The data is time stamped and the data from Apple's enhanced device motion is included for reference.

What's New

Version 1.14

- This version fixes a bug related to accessing GPS information
- The output format is now a CSV where each sensor axis is a column

Ratings and Reviews

No Lat/Long in output file

Lumberton NJ

Useless DataCollection without positional lat long!!!

Not sure about emailing - resolved

Herschel the inertial

Recorded five seconds at one hertz.

Display does not change when recording (maybe that is ok.)
Update: this is expected behavior.

When prompted after end of recording I selected 'email' and then app 'disappeared.' On restart, app is back to normal. I do not use apple email but another well-known third-party app.
Update: EBKAC ... I had not enabled the email setting for the ipad. Once I pointed it to my third-party app, everything worked just fine.

I have not checked via iTunes to see if data was actually recorded.
Update: the data was recorded and sent out via email.
Use was on ipad mini.

Cool app. Hope this helps.
Update: still a cool app. Hope my mistakes help some other user.

Amazing Potential

Data guy 78

As a recording mechanism, this app has some incredible potential. It could really benefit, however, by offering the user a way to adjust the sampling rate (i.e., takes a reading every 15 milliseconds or 2 seconds or 9 minutes). Otherwise, the saved file just ends up being huge. That would easily make this a 4 or 5-star app!


Christopher Wozny
1.1 MB
Requires iOS 11.3 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Polish, Spanish
Age Rating
Rated 4+
© 2018 Chris Wozny


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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