App Reviews /

Peak Review

Peak Screenshots


4.33 / 5.00

Overall Score: 13/15

Consumer Ratings: 2/2
Proposed Goal: 1/2
Evidence Based Content: 0/1
Software Updates: 2/2
Clinical Input in Development: 1/1
Research on Development Process: 1/1
Efficacy of Other Products: 1/1
Research Independence and Review: 2/2
Research Base: 3/3

Rating Date: August 2020

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User Experince

User Experience

4.52 / 5.00

Engagement: 4.40 Functionality: 5.00 Aesthetics: 4.50 Information: 4.18 Subjective quality score: 4.88 Perceived impact score: 2.92 Rating date: August 2016 Rated by: Queensland University

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Overall Score: Unacceptable

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?: No/Can’t Tell

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 use the app WITHOUT entering identifiable information, OR state that user information is stored locally?: 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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Professional Reviews

Professional Review

Not Yet Available

Peak aims to deliver short and engaging cognitive training games. The app offers a suite of games that address cognitive processes in 8 areas: Memory, Attention, Problem Solving, Mental Agility, Language, Coordination, Creativity and Emotion Control. After completing an assessment, users perform daily “Workouts” and cognitive skills training tasks to earn points for tracking progress and comparing to friends and others who use the program. Workouts and tasks consist of a few short games that help to improve certain areas such as language, mental “endurance,” and problem solving. A Pro version is also available for an additional cost that offers additional games and programs.

Technical Details

Available for: Requires iOS 12.0 and watchOS 2.0 or later. Compatible with iPhone, iPad, and iPod touch. Requires Android 5.0 and up. Available on the Web.
Developer: Brainbow Limited
Type of Treatment: Cognitive Training
Targeted Conditions: Mood Disorders, Schizophrenia, Traumatic Brain Injury (TBI), ADHD
Target Audience: Not Specified
Designed to be used in conjunction with a professional? No
Languages Available: English, Danish, Dutch, French, German, Italian, Japanese, Korean, Norwegian Bokmål, Portuguese, Simplified Chinese, Spanish, Swedish, Traditional Chinese
Cost: Free with in-app purchases
Get it on: Apple App Store, Google Play, Web

Research on this App

In a study published in 2015, a memory game called Wizard was developed. It was based on Paired-Associate Learning, and later included as a component of the Peak app, “”The Cambridge University & Peak Advanced Training Plan””. Twenty-two participants (11 male, 11 female, age > 16 y/o) with a clinical diagnosis of schizophrenia or a related disorder (e.g., schizoaffective disorder, schizophreniform disorder) were recruited for the study. 12 participants were assigned to a treatment as usual group (TAU), and 10 participants were assigned to a cognitive training group (CT). Participants in the CT group played the memory game for a total of 8 hours over a 4-week period. At the end of the trial, participants in the CT group improved significantly in their social, occupational, and psychological functioning, as measured by the Global Assessment of Functioning (GAF). The CT group also correctly located more patterns at the first attempt of the eight-pattern stage in the CANTAB PAL assessment. The CT group also rated more highly in terms of task enjoyment and motivation. (Sahakian et al. 2015.

In a study published in 2019, a game targeting sustained visual attention was developed called Decoder. It was later included as a component of the Peak app. 75 young adults (age 18-30) were randomly assigned to a Cognitive Training (Decoder, 8h of playing Decoder over 4 weeks, n=25), Active Control (Bingo, 8h of playing Bingo over 4 weeks, n=25), or Passive Control (No Game, continuing activities of daily living, n=25) group. Attention and concentration was significantly improved for the Decoder group based on measurements using the Trail Making Test (TMT), and CANTAB Rapid Visual Information Processing Test (RVP). The Decoder group also rated more highly in task enjoyment and motivation. (Savulich et al. 2019.

Several other studies use the Peak brain training app as a tool as a part of their studies, but don’t directly examine the efficacy or development of the app.

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.

Learn More About Our Criteria
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Thank you for your interest in One Mind PsyberGuide. Due to a loss of funding, we are no longer updating or maintaining the One Mind PsyberGuide website. Reviews have been updated as of the last date indicated on each review. Other activities at One Mind PsyberGuide stopped in June 2023. We hope this website can still serve as a resource for those interested in using technology to support people and their mental health. We thank everyone for their support of One Mind PsyberGuide over the years.