# Sauna Record vs CryoZest

The clearest difference is price: CryoZest at Free against Sauna Record's $3.99. CryoZest also leads on rating (4.3 vs 1.0) and update cadence (every 2 days vs fortnightly). On review sentiment, ads, in-app purchases and device support there is nothing between them.

CryoZest is free to download; Sauna Record costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CryoZest holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: CryoZest has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 57% of Sauna Record's written reviews are positive against 56% of CryoZest's, so the app with the better star average is not the one people write more warmly about.

Sauna Record ships an update fortnightly, CryoZest every 2 days. The most recent releases landed on September 22, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Sauna Record | CryoZest |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/sauna-record/id1629008394/reviews) | **[4.3 (20 ratings)](https://appshunter.io/ios/app/cryozest-self-experiment/id6449912558/reviews)** |
| Number of ratings | 1 | **20** |
| Positive reviews | **57.1% of reviews** | 55.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 90 MB | 4 MB |
| Requires iOS | **15.0** | 16.2 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [koichi sonehara](https://appshunter.io/developer/1590319623) | [OKRA Labs LLC](https://appshunter.io/developer/1691008963) |

## What reviewers say

### Sauna Record

[App page](https://appshunter.io/ios/app/sauna-record/id1629008394)

Track your sauna sessions, water baths, and rest periods with detailed heart rate and environmental data. Analyze your records to optimize your sauna experience for better health and well-being. Integrates with Apple Watch and HealthKit for comprehensive health monitoring.

**Highlights:** Record sauna, water bath, and rest times, Track heart rate and estimated sweat volume, Save heart rate data to HealthKit, Sauna activity calendar and vibration notifications, Record sauna facility details and temperatures, Track weight, blood pressure, and BMI, Backup and share sauna records

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### CryoZest

[App page](https://appshunter.io/ios/app/cryozest-self-experiment/id6449912558)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sauna Record free?

Sauna Record costs $3.99, with no in-app purchases.

### Is CryoZest free?

CryoZest is free to download, with no in-app purchases.

### Which has better reviews, Sauna Record or CryoZest?

CryoZest is rated higher. Sauna Record averages 1.0 out of 5 from 1 ratings, while CryoZest averages 4.3 from 20 ratings.

### Do Sauna Record or CryoZest have ads?

Neither Sauna Record nor CryoZest shows ads.

### Which is updated more often, Sauna Record or CryoZest?

Sauna Record ships an update fortnightly, and CryoZest every 2 days. Most recently, Sauna Record was updated on September 22, 2026 and CryoZest on June 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*