App Reviews /

Purple Chill Review

Stress and Anxiety
Purple Chill Icon
Credibility

Credibility

3.57 / 5.00

Overall Score: 10/14

Research Base: 1/3
Research Funding: 2/2
Proposed Intervention: 3/3
Consumer Ratings: 1/3
Clinical Input in Development: 1/1
Software Support: 2/2

Date of Rating: May 2018

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User Experince

User Experience

3.27 / 5.00

Engagement: 2.80 Functionality: 4.00 Aesthetics: 2.50 Information: 3.75 Subjective quality score: 2.00 Perceived impact score: 3.00 Rating date: November 2018 Rated by: Queensland University

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Transparency

Transparency

Questionable

Overall Score: Questionable
Does the app have a privacy policy?: Yes
Does the policy describe the information storage and sharing procedures related to user entered information OR state that user information is stored locally?: Yes
Does the app provide the option of a pin entry or log-in process to view and enter user data?: No/Can’t Tell
Does the privacy policy state that the app/server encrypts the entered data OR state that user information is stored locally?: No/Can’t Tell
Does the privacy policy state whether or not users can delete entered information OR state that user information is stored locally?: No/Can’t Tell
Does the privacy policy state whether or not users can edit entered information OR state that user information is stored locally?: No/Can’t Tell

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Professional Reviews

Professional Review

Not Yet Available

“Purple Chill” is part of the Intellicare Suite* of mental health apps by the Center for Behavioral Intervention Technologies. Purple Chill is designed to help users calm down when feeling stressed or to relax before falling asleep. The app contains an explanation of and audio for the following types of relaxation exercises: deep breathing, progressive muscle relaxation, autogenic exercises, visualization, mindfulness, and sleep. Audio recordings range from 3 to 30 minutes in length. The app also provides options to customize and schedule reminders to optimize use.

*Stephen Schueller, the Executive Director of PsyberGuide and David Mohr, a PsyberGuide Scientific Advisory Board Member, were both involved with the development of IntelliCare. Dr. Schueller has no commercial interest in IntelliCare, nor Actualize Therapy. Dr. Mohr has an ownership interest in Actualize Therapy.

Technical Details

Available For: Android compatibility varies; Visit the Intellicare website.
Developer: CBITs, Northwestern University
Type of Treatment: Cognitive Behavioral Principles, Mindfulness, Psychoeducation & Information
Targeted Conditions: Stress & Anxiety
Target Audience: Not Specified
Designed to be used in conjunction with a healthcare professional: No
Languages Available: English
Cost: Free
Get it on: Google Play

Research on this App

“Purple Chill” is part of the Intellicare Suite of mental health apps by the Center for Behavioral Intervention Technologies. A 2017 trial of the Intellicare Suite found that users of the Intellicare apps showed a reduction in symptoms of depression and anxiety after using 5 or more apps in the Intellicare suite over eight weeks. Another study by Lattie et al (2015) presents the uptake and usage of apps from the IntelliCare suite following an open deployment on a large app marketplace. In the first year of public availability, 5210 individuals downloaded one or more of the IntelliCare apps, for a total of 10,131 downloads. Nearly a third of these individuals (31.8%) downloaded more than one of these apps. The modal number of launches for each of the apps was 1, however the mean number of app launches per app ranged from 3.10 to 16.98, reflecting considerable variability in the use of each app.

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How we evaluate

We review apps against rating criteria developed by experts in the field. Some of those criteria are:

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Credibility

We look at the research supporting the technology and the credibility of the development process.

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Transparency

We review privacy policies to see if key pieces of information about what happens with entered data are addressed.

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User Experience

We explore how fun, functional, easy-to-use, engaging, and interesting the technology is.

ProfessionalReviews

Professional Reviews

A professional in a relevant field downloads and uses the technology and writes a narrative review, highlighting pros & cons and some recommendations for use.

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