This app has been created to facilitate the collection of data from the movement sensors of the mobile phones. It has been written for Android and iOS platform and stores the measurements of the available sensors at a frequency of 200 Hz. The user can easily add labels to the measurements, even change the labels during the recording. Once the measurement is finished, the user can send the data to a remote server that is hosted at EPFL.
As an additional gamification, the different labels start red, after 1 minute of usage they turn yellow, and after one more minute of usage they turn green.
Before you download and install the app, we recommend you try this tutorial version.
The tutorial is a fake version of the app, which guides you through all the steps of creating a successful recording using IndiePocket. It does not actually work, it is only a mock-up. This means it won't record any data, nor upload it on the server.
Tutorial screen, with hints and explanations.
You can get the app from here: https://go.epfl.ch/indie-pocket-download
<aside> ⚠️ The app has not yet been reviewed by the Google play store nor by the Apple store. When you install it, you will have to accept warnings about potential risks to your phone.
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All data you collect will be sent to a server hosted at EPFL, Lausanne, Switzerland. The following information will be sent:
We do not keep track of the IP addresses of the phones!
<aside> ℹ️ For more information, read the user instructions here: "Indie-Pocket" user guide
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Once you choose the placement of the phone and your activity, the app will start tracking the sensors.
Select the placement and the action before starting record. You can change it anytime while the phone is recording. Once you're done, click on Stop and choose Stop and upload.
You can find a short video explaining how to use the app here: (French only)