Pzizz app

An app for people having trouble sleeping.

Pzizz By Pzizz
Pzizz app icon
  • Audio sleep aid

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Clinical review

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Paid version:

Read a clinical review of this app.

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Cost Free for basic version
$44 per year for pro version (or $15 per month)

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What does the app do?

This app has soundtracks designed to aid sleep in either a nap module (for a shorter daytime sleep) or sleep module (for a longer night-time sleep). These soundtracks change every day.The app plays a mixture of music, sound effects and a male voiceover. The different frequencies in the soundtrack are supposed to soothe and calm the brain - the app developers describe this as "binaural beats that induce theta brainwaves". The user can customise numerous settings including the length of the track, the volume of the soundtrack, the volume of the voice, turning off the voice, setting an alarm, and turning off phone notifications. In the pro version, users have access to more soundtracks including a 'focus' module, more app functions (such as choosing a female voice) and monthly updates. For a more detailed description of the app, see Google Play or iTunes and for a detailed review, see Reviews.

Pzizz app screenshots



✔  The app is based on research albeit limited.

✔ Wide selection of high quality audio tracks to help with sleep and focus.

✔ Voice-overs with scripts based on progressive relaxation and hypnosis. Choose from a female or male voice.

✔ Built in timer.

✔ Fairly frequent updated.

✘  Large download size (wi-fi download preferrable).

✘ Fairly expensive for what you get (10 USD a month) and the free version is very limited.

✘ Evidence to support use of the app appears limited.

✘ Some of the voice-overs are based on neurolinguistic programming which is a psychological approach that has been discredited scientifically

✘ You may need to use earbuds to get the most out of  

Security and privacy

Users must create an account and log on via their email address or Facebook. Has a privacy policy, all data you enter can be used by the company and shared with third parties to provide you with targeted advertising. View the app privacy policy. Read more about things you can do to improve your safety and security when using apps.

Review details

Date of review: December 2017
Platform reviewed: Android
App version: 4.7.7
Download size: 585 MB

Learn More

Koffel E, Kuhn E, Petsoulis N, et al. A randomized controlled pilot study of CBT-I Coach: Feasibility, acceptability, and potential impact of a mobile phone application for patients in cognitive behavioral therapy for insomnia. Health Informatics J. 2016 Jun 27.

Kuhn E, Weiss BJ, Taylor KL, et al. CBT-I Coach: A Description and Clinician Perceptions of a Mobile App for Cognitive Behavioral Therapy for Insomnia. J Clin Sleep Med. 2016 Apr 15;12(4):597-606.

Ko PR, Kientz JA, Choe EK, et al. Consumer Sleep Technologies: A Review of the Landscape. J Clin Sleep Med. 2015 Dec 15;11(12):1455-61.

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Credits: Editorial team. Reviewed By: Jeremy Steinberg, GP, FRNZCGP Last reviewed: 03 Apr 2018