Data Collection 4+

Name: Data Collection
Price: 0.99 GBP
Rating: 4.3 (3 reviews)
Author: Chris Wozny

Chris Wozny

Designed for iPad

- 4.3 • 3 Ratings

- £0.99

Description

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.

1 Nov 2021

Version 1.15

- Updated for iOS 15 and other behind-the-scenes things

4.3 out of 5

3 Ratings

Good

Interested in the magnetometer more than the rest. Seems to be quite accurate apart from the Y axis. This has a scaling problem. Worth 4 stars.

Clever App - does what it says

See that screen? That's what you get - data for the three sensors, in three axes, displayed live on screen. Turn recording on, and it saves all the data to a .txt file, which you can email when you turn recording off.

Issues? (What would get 5* ?)

Would be nice to be able to reduce the sensitivity levels reported (it's so sensitive that even flat on the table reported data is changing.)

Would be nice to be able to change the recording rate (fewer records per second) to reduce the volume of data captured over a period of time. Recording a 5 minute car trip produces a big file.

But it's a smart piece of work - go for the PhD!

Sample rate to high

App has potential but the sample rate is too high, will produce large amount of data. Need to be able to select a sample rate of say once a minute to once an hour to get a sensible data quantity in a day to see trends.

The developer, Chris Wozny, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.