CryoZest - Self Experiment

CryoZest - Self Experiment

Stop guessing, start testing

20 ratings
9 reviews
Free

Details

  • Released
  • Updated
  • June 7, 2023
  • March 10, 2026

Features

CryoZest - Self Experiment screenshot #1 for iPhone
CryoZest - Self Experiment screenshot #2 for iPhone
CryoZest - Self Experiment screenshot #3 for iPhone
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CryoZest - Self Experiment screenshot #5 for iPhone
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About

Track hot and cold therapy sessions like sauna, yoga, and cold plunges. Seamlessly integrate with the Health app to monitor progress and uncover patterns in your wellness journey. Log details like duration, temperature, and intensity for data-driven insights.

Log hot and cold therapy sessions
Track duration, temperature, and intensity
View session history and trends
Integrate with Health app via HealthKit/CareKit
Monitor associated health metrics
Data-driven wellness insights
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What's New in CryoZest

3.2.0

March 10, 2026

Improved AI integration

User reviews

Insights are unique

It’s cool to see the correlations it finds. It says my resting heart rate has been decreasing from the swimming I’ve been doing

No Sauna or cold plunge timer

The app use to have a cold plunge tracker as well as a sauna tracker but they have gotten rid of it. It used to be the core function of the app

Nice app

I use it all the time to track my runs

Decent app. Has problems.

Tracks and records info that other apps don’t.
Problems I’ve had with it:
When recording a session, my phone goes to sleep. Screen won’t stay on when recording a session.
Sometimes when I record a session it records the value as 0 minutes 0 sec completed.
There is no way to edit or delete a session so the days where it gives me a zero value it messes up my tracked info and skews my averages.
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Response from developer

Hello, Wanted to thank you for bringing this issue to light. We have updated Cryozest and it now includes the ability to delete an existing therapy session. Give it a download and let us know what you think! With regards to the phone going to sleep, I suggest going through your phone settings and changing the frequency and speed that your phone goes to sleep.

Built for the US, only Fahrenheit temps

Essentially built for the US not the majority of countries which use a metric system. No option to change the temp to Celcius

Developer apps

FAQ

What types of therapies can I track with CryoZest?

CryoZest allows you to log various hot and cold therapies, including sauna sessions, hot yoga, cold showers, and cold plunges. You can record details such as duration, temperature, and perceived intensity for each session.

How does CryoZest integrate with the Health app?

CryoZest utilizes HealthKit and CareKit APIs to seamlessly integrate with your iPhone's Health app. This allows you to connect your therapy session data with your broader health metrics for a more comprehensive view of your wellbeing.

Can I see my progress over time with CryoZest?

Yes, CryoZest provides easy-to-read visuals and summaries of your session history. You can analyze your trends over time to monitor improvements in your wellbeing and understand the impact of your hot and cold therapies.

What devices does CryoZest support?

CryoZest is available for iPhone and iPad. It is designed to run on Apple devices, leveraging their integrated health tracking capabilities.

Is CryoZest free to use?

Yes, CryoZest is available for free. There are no in-app purchases or subscription fees required to use its core features for tracking and analyzing your therapy sessions.

How often is CryoZest updated?

The latest version of CryoZest is 3.2.0, which was last updated on March 10, 2026. While this indicates a recent update, the app's update frequency can vary based on developer plans and user feedback.

What is the age rating for CryoZest?

CryoZest has an age rating of 4+. This indicates that the app is suitable for users of all ages, with no content restrictions for younger audiences.

Does CryoZest have ads?

No, CryoZest does not contain advertisements. The app is designed to provide a clean and uninterrupted experience for users tracking their health and wellness routines.