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Happify: For Stress & Worry Review

Happify: For Stress & Worry Screenshots


5.00 / 5.00

Overall Score: 14/14

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

Date of Rating: May 2020

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User Experince

User Experience

3.34 / 5.00

Engagement: 3.80 Functionality: 2.88 Aesthetics: 3.17 Information: 3.50 Subjective quality score: 2.38 Perceived impact score: 2.92 Rating date: February 2018 Rated by: Queensland University

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Overall Score: Acceptable

Does the app have a privacy policy?:Yes
Does the privacy policy describe the information storage and sharing procedures related to user entered information, OR state that user information is stored locally?:Yes
Does the privacy policy state that the app/server encrypts/de-identifies the entered data 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?:Yes
Does the privacy policy state whether or not users can delete entered information OR state that user information is stored locally?:Yes
Does the privacy policy state whether or not users can edit entered information OR state that user information is stored locally?:Yes

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Happify is a mobile app and web based program aimed at helping users reduce stress, anxiety and negative thinking, and improving emotional well-being. Users create an account and answer a short questionnaire which helps the app suggest a “track” for the user. “Tracks” are groups of activities and games which help the user achieve their goals. Tracks are based on cognitive behavioral principles therapy, mindfulness and positive psychology and are created by professionals to help clients achieve specific goals. Examples of tracks include “Cope Better with Stress” and “Conquer Your Negative Thinking.” Users can access free tracks or choose to pay a subscription fee to access more tracks and features such as data statistics that help measure progress. There is also an AI coach present to help guide users. Users can participate in the Happify community through forums and public posts and they can also read a digest of positive news through Happify Daily.

Accessibility features are presented upon being introduced to the app. Settings include a high-contrast mode, font resizing through the operating system, and the option to be notified if an activity requires high audio/visual content.

Read the Professional Review for Happify: A Professional Review

Technical Details

Available For: iOS 9.0 or later (iPhone, iPad, and iPod touch). Android 5.0 and up. Computers (PCs and Macs)
Developer: Happify, Inc.
Type of Treatment: Cognitive Behavioral Principles, Mindfulness, Symptom Tracking/Self-Monitoring, Psychoeducation & Information, Gratitude
Targeted Conditions: Mood Disorders, Stress and Anxiety, PTSD, Sleep, Chronic Pain
Target Audience: Adults
Designed to be used in conjunction with a healthcare professional: No, but recommended
Languages Available: English, Chinese, French, German, Japanese, Portuguese, Spanish, Traditional Chinese

Cost: Free with in-app purchases
Get it on: Google PlayiTunes, Online

Research on this App

One study tested the efficacy of Happify, specifically whether usage predicts well-being. Data was collected from 152,747 users, and results showed that happiness improved about 11% over the course of 8 weeks. More usage predicted more positive emotion and less usage predicted less positive emotion.

Another study investigated the effects of the Breather activity in Happify. 140 participants (mean age 20.48 y/o, 77.1% female) were presented with a stressor and randomly assigned to recovery in one of three conditions; with a phone, no phone, and with the Happify Breather game (treatment condition). The study found significantly less salivary alpha amylase in the treatment condition, indicating better recovery with the treatment condition.

In a study published in 2018, 1051 new users of Happify were randomly assigned to one of 4 groups. 222 were assigned to a Happify recommended usage group, 250 participants were assigned to a Happify low usage group, 501 participants were assigned to a psychoeducation recommended usage group, and 78 participants were assigned to a psychoeducation low usage group. Changes were measured using the PHQ-9 assessment for depression, GAD-7 for anxiety, PSS for stress, HS-E for positive emotionality, and LOT-R for optimism. The latter 3 tests were used to measure overall resilience. The majority of participants were female (N=908) and varied widely in age. Depressive symptoms for participants in the Happify recommended usage condition were significantly lower than in the low usage Happify condition, and the recommended psychoeducation condition. There was no significant difference between low usage psychoeducation participants and recommended usage Happify participants. Anxiety symptoms were significantly lower for the recommended usage Happify condition than in the low usage Happify condition, and both psychoeducation conditions. Recommended usage Happify participants demonstrated significantly larger improvements in resilience compared to low usage Happify participants, and both psychoeducation conditions.

In another study published in 2018, change in resilience was measured for new users of Happify who were also employed full-time. Users were randomly assigned to one of 3 conditions: Happify intervention, psychoeducational interventions (modules-only), and no usage (no treatment). There were two samples of users, with sample 1 (N=321) measuring emotional distress in full-time employees and sample 2 (N=270) measuring workplace distress in full-time employees. In Sample 1, all three conditions showed significant effects. Happify showed greater significant change in resilience from baseline to post-test than did participants in the Psychoeducation or no-usage conditions. In sample 2, employees who used Happify showed significantly greater increases in resilience over eight weeks than employees in the other two groups.

How we evaluate

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



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



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


User Experience

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


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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