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GSR 11

1.1 MB / 10+ Downloads / Rating 3.3 - 20 reviews


See previous versions

GSR, developed and published by Michael Gasperi, has released its latest version, 11, on 2014-09-01. This app falls under the Health & Fitness category on the Google Play Store and has achieved over 1000 installs. It currently holds an overall rating of 3.3, based on 20 reviews.

GSR APK available on this page is compatible with all Android devices that meet the required specifications (Android 1.6+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

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App Screenshot

App Screenshot

App Details

Package name: com.GSR.gasperi

Updated: 10 years ago

Developer Name: Michael Gasperi

Category: Health & Fitness

New features: Show more

App Permissions: Show more

Installation Instructions

This article outlines two straightforward methods for installing GSR on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

App Rating

3.3
Total 20 reviews

Reviews

5 ★, on 2015-03-16
This app is brilliant! It allows kids (and adults!) to make their own GSR electrodes for a lie detector test or stress indicator and it really works! Great for science fair projects or just for fun. Make sure you follow the directions carefully when making the electrodes.

4 ★, on 2015-10-04
Can someone kindly tell me the threshold levels used to determine the GSR levels? As in, the screen is made to change colours from blue (neutral) to red (stressed). At what GSR level is the distinction made?

5 ★, on 2015-09-24
I totally never hit this though: the ear phone could be used to a sense of heartbeat.

5 ★, on 2017-08-11
Great app! Built something like this back in the 70's. One modification I made was to use the pads from my tens. Is there any good documentation on how to control the gsr?

Previous Versions

GSR 11
2014-09-01 / 1.1 MB / Android 1.6+

About this app

Please see my website before downloading for more information: http://www.extremenxt.com/gsr.htm

Please don't just give this app a low review without at least saying why you had a problem with it.

This is an app to measure Galvanic Skin Response or GSR. It will only work with special finger electrodes and a smartphone. It needs an external microphone input and so it may not work with some tablets. Samsung phones may require a modified cable.

GSR logs the value of skin resistance into a comma separated value file that can be read with most spreadsheet programs. The file is written to the top of your SD memory area with a unique name made from the date and time (YYMMDDHHMMSS.CSV).

The chart shows the previous 50 seconds of values. If the value changes too much, it automatically re-centers itself. You can push the Center button at any time to force it to center. Centering does not effect the data that is stored in the file. A vertical marker is drawn periodically to help show the scrolling movement of the chart.

During the first 25 seconds, the audio output level is automatically adjusted to set the gain for the measurements. At the end the volume is restored to the original setting.

The right audio channel has a feedback signal for the change in GSR. Lower frequency means more relaxed while higher is more stress.

The background color also changes from green which is neutral to red with stress or blue with increased relaxation.

This is still experimental software, so I have some debugging numbers than can be turned on from the menu. They don't have anything to do with the GSR values. If you have any problems, or success, please email me before giving a negative review.

New features

Made time between samples 0.2 seconds.
Some improvements for Samsung phones
Tone on right audio channel is continuous now

App Permissions

Allows an application to write to external storage.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to record audio.
Allows an application to read from external storage.