# Sauna Record vs 8weeks.ai Sync Hub

The clearest difference is price: 8weeks.ai Sync Hub at Free against Sauna Record's $3.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

8weeks.ai Sync Hub is free to download; Sauna Record costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sauna Record ships an update fortnightly, 8weeks.ai Sync Hub every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sauna Record | 8weeks.ai Sync Hub |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/sauna-record/id1629008394/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 90 MB | 79 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [koichi sonehara](https://appshunter.io/developer/1590319623) | [NEXTRAVELER INC.](https://appshunter.io/developer/6774433671) |

## 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


### 8weeks.ai Sync Hub

[App page](https://appshunter.io/ios/app/8weeksai-sync-hub/id6774433669)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sauna Record free?

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

### Is 8weeks.ai Sync Hub free?

8weeks.ai Sync Hub is free to download, with no in-app purchases.

### Do Sauna Record or 8weeks.ai Sync Hub have ads?

Neither Sauna Record nor 8weeks.ai Sync Hub shows ads.

### Which is updated more often, Sauna Record or 8weeks.ai Sync Hub?

Sauna Record ships an update fortnightly, and 8weeks.ai Sync Hub every 2 weeks. Most recently, Sauna Record was updated on November 3, 2026 and 8weeks.ai Sync Hub on October 31, 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.*