# KLAFS Sauna vs CryoZest

The clearest difference is rating: CryoZest at 4.3 against KLAFS Sauna's 1.0. CryoZest also leads on update cadence (every 2 days vs every 12 months) and ratings volume (20 vs 1). KLAFS Sauna's advantage is iOS requirement (12.0 vs 16.2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 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.

KLAFS Sauna ships an update every 12 months, CryoZest every 2 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | KLAFS Sauna | CryoZest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/klafs-sauna/id715455020/reviews) | **[4.3 (20 ratings)](https://appshunter.io/ios/app/cryozest-self-experiment/id6449912558/reviews)** |
| Number of ratings | 1 | **20** |
| Positive reviews | — | 55.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 1 MB | 4 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Informatik Werkstatt GmbH](https://appshunter.io/developer/570657197) | [OKRA Labs LLC](https://appshunter.io/developer/1691008963) |

## What reviewers say

### KLAFS Sauna

[App page](https://appshunter.io/ios/app/klafs-sauna/id715455020)

Control your SANARIUM® remotely to preheat it to your desired temperature before you arrive. Manage settings like humidity and time presets, access a wellness glossary, and receive useful information. Ensures safe operation with the ASC safety system.

**Highlights:** Remote SANARIUM® activation, Temperature control, Humidity regulation, Time presets, Status checking, Wellness glossary

**Features:** macOS Compatibility

**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 KLAFS Sauna free?

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

### Is CryoZest free?

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

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

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

### Do KLAFS Sauna or CryoZest have ads?

Neither KLAFS Sauna nor CryoZest shows ads.

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

KLAFS Sauna ships an update every 12 months, and CryoZest every 2 days. Most recently, KLAFS Sauna was updated on October 29, 2026 and CryoZest on October 24, 2026.

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