# HotLog - Sauna & Cold Plunge — Log Sauna & Infrared Sessions

> Digital companion for tracking sauna, steam bath, and infrared sessions. (iPhone/iPad app by Thomas Dori.)

- Source: https://appshunter.io/ios/app/hotlog-sauna-and-cold-plunge/id1413952733 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Dori](https://appshunter.io/developer/851172142)
- Category: Health & Fitness, Lifestyle
- Price: $1.99
- Rating: 4.60/5 from 518 App Store ratings · 58 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 18 MB
- Languages: American English, German (Germany)
- Released: 2018-12-01
- Data updated: 2026-08-29
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hotlog-sauna-and-cold-plunge/id1413952733/reviews.md

## What is HotLog?

There’s something uniquely satisfying about stepping into a hot sauna, steam bath, or infrared room and leaving feeling refreshed, relaxed, and recharged. Beyond relaxation, regular sauna sessions may also offer a range of health and wellness benefits.

HotLog is your personal companion for tracking sauna, steam bath, infrared and cold plunge sessions. Easily record all the details that matter, including:

• Sauna Type
• Temperature
• Humidity
• Duration
• Aufguss Sessions
• Cold Showers & Cold Plunges

Build a complete history of your sessions and gain valuable insights into your habits with statistics and trends. See how often you sauna, track your progress over time, and stay motivated to maintain your routine. For an even more complete wellness picture, HotLog can automatically save your sessions as workouts in Apple Health.

Whether you're an occasional sauna visitor or a dedicated enthusiast, HotLog helps you get more out of every session.

## Key features

- Track sauna, steam, infrared sessions
- Log temperature and humidity
- Record session duration
- Note aufguss and cold showers
- View session statistics
- Sync with Apple Health

## Chart rankings

- #122 in Top Paid · Health & Fitness (US App Store)

## What do users think of HotLog?

Overall sentiment: mixed

**Pros**

- 👍 Simple and intuitive interface
- 📱 Seamless Apple Health integration
- ⏱️ Easy time and session logging
- 🎯 Does exactly what it claims for basic tracking
- 📊 Detailed CSV export functionality
- ✨ Polished and attractive design
- 🔄 Converts sauna time to Apple Health workout minutes

**Cons**

- ⌚ No Apple Watch app support
- 🐛 Data loss during phone migration
- ❌ Manual entry only - no automatic tracking
- 📉 Lacks advanced analytics and statistics
- 💰 Limited features for paid app
- 🔋 No heart rate monitoring integration
- 📊 No weekly/monthly/yearly comparison views
- 🌡️ Temperature range limitations (can't track below 30°C or above 40% humidity)
- 🔗 Inconsistent Apple Health syncing for some users

**Commonly reported bugs**

- Apple Health syncing fails for some users
- Data not migrating to new devices properly
- Temperature field doesn't support ice bath temperatures below 30°C
- Humidity field limited to maximum 40%
- App crashes or won't launch for some users
- CSV export functionality unreliable

**Most requested features**

- Apple Watch app with timer functionality
- Built-in countdown timer for sessions
- Weekly, monthly, and yearly statistics views
- Heart rate monitoring and integration
- Preset saving for temperature, time, and humidity
- Automatic session tracking (start/stop button)
- Cold plunge duration tracking (not just toggle)
- Calorie calculation based on biometric data
- Scent/fragrance logging for sauna sessions
- Multi-user tracking and easy sharing
- Expanded temperature range for ice baths
- Humidity settings above 40%
- Mindfulness/meditation time sync instead of workout minutes

## Recent user reviews (10 of 58)

All indexed reviews: https://appshunter.io/ios/app/hotlog-sauna-and-cold-plunge/id1413952733/reviews.md

### 4/5 — Great logging app

*2026-08-01, version 1.7*

Only 4 stars because I would like to be able to log  hot tub experiences

### 2/5 — Just a log

*2026-07-04, version 1.7*

If you just want to manually enter on the data from your sauna session this app is for you. That wasn’t what I was looking for. 
No stop watch or timer built in to the app so you have to time your session in other ways then figure out/ remember your start time to log it. No cold plunge option.

### 4/5 — Pretty good but room for improvement

*2026-06-09, version 1.7*

Would love to see a timer feature to start a session at anytime and support with Bluetooth devices to automatically track heart rate like from earbuds.

### 5/5 — Good easy app

*2026-06-01, version 1.6*

Very easy to use & nothing like it

### 4/5 — Could use some improvements

*2025-11-30, version 1.5.1*

I appreciate the polished interface and the ability to track my time in sauna as workouts that are stored in Apple health. However, why can I not choose a humidity over 40% for a Sauna? I have a traditional steam sauna and cannot choose above 40%?? I’d love to see the ability to save presets for time, temp, and humidity!

### 5/5 — Just what I needed

*2025-11-06, version 1.5.1*

This app is essentially perfect for its stated purpose… Just simply tracking my sauna use: time, temperature. No unnecessary frills.

### 4/5 — New feature request

*2025-09-26, version 1.5.1*

Enjoy being able to log. It would be nice to start and end a session.

### 5/5 — Great App!

*2025-07-26, version 1.5.1*

Links your sauna time to Apple Health. Easy to use!

### 2/5 — Meh

*2025-05-20, version 1.5.1*

Wish there was a countdown timer in app so that you could have a session capture your actual time in sauna without needing to set a separate timer. Would also appreciate if it connected with health more cleanly (height/weight, etc to better estimate calories based on heartbeat etc)

### 5/5 — Mega für Sauna Fans

*2025-02-21*

Tolle App mit schickem Layout und einwandfreier Funktion. Es wäre toll wenn man beim Aufguss Regler auch einen Duft  eintragen könnte :) (statt bei den Notizen)

## Frequently asked questions about HotLog

### What does HotLog do?

HotLog is a digital companion designed to help you track your sauna, steam bath, and infrared room sessions. It allows you to record key details of each session, providing insights into your habits and potentially syncing with Apple Health.

### What details can I log for each session?

You can log various important details for each session, including the type of room (sauna, steam, infrared), temperature, humidity, duration, whether an aufguss was performed, and if you took a cold shower or plunge afterward.

### Is HotLog free to use?

Yes, based on the provided information, HotLog is a free application. It does not appear to have any associated costs for downloading or using its core features.

### Can this app track my sauna sessions as workouts?

Yes, if you choose to enable this feature, HotLog can track all your logged sauna sessions as workouts within Apple Health. This allows you to integrate your sauna habits into your overall fitness tracking.

### Who would benefit from using this app?

This app is ideal for anyone who frequently visits saunas, steam baths, or infrared rooms and wants to monitor their usage. It's beneficial for those interested in the relaxation and potential health benefits of these practices and wish to understand their habits better.

## Version history (last 5 releases)

### 1.7 — 2026-06-04

Custom Sauna Types

You can now create your own sauna types and track sessions your way. Add favorites like Biosauna, Crystal Sauna, or any custom sauna experience.

### 1.6 — 2025-12-18

Finally adjusted the UI to iOS 26 and fixed some warnings and bugs under the hood.

### 1.5.1 — 2024-12-05

Fixed some small bugs you probably haven't even noticed :)

### 1.5 — 2024-10-01

Your Sessions are now saved in iCloud, if you're logged in

### 1.4 — 2023-12-26

Import from CSV is now available in the app settings.

## Apps similar to HotLog

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [GoPolar: Cold Plunge & Sauna](https://appshunter.io/ios/app/gopolar-cold-plunge-and-sauna/id6463441179) | 4.7 (292) | Free | Health & Fitness |
| [Sauna & Cold Plunge Tracker](https://appshunter.io/ios/app/sauna-and-cold-plunge-tracker/id6739606616) | 4.4 (24) | $5.99 | Health & Fitness |
| [Ultra Plunge: Recovery Tracker](https://appshunter.io/ios/app/ultra-plunge-recovery-tracker/id6499478156) | 4.1 (46) | Free | Health & Fitness |
| [Cold Water Therapy](https://appshunter.io/ios/app/cold-water-therapy/id1562132065) | 2.8 (43) | Free | Health & Fitness |
| [CryoZest - Self Experiment](https://appshunter.io/ios/app/cryozest-self-experiment/id6449912558) | 4.3 (20) | Free | Health & Fitness |
| [ThermaSesh](https://appshunter.io/ios/app/thermasesh/id6447648037) | 4.6 (74) | Free | Health & Fitness |

## More apps by Thomas Dori

- [TinaReturner](https://appshunter.io/ios/app/tinareturner/id1568744218)

All apps by Thomas Dori: https://appshunter.io/developer/851172142

## Related topics

[plunge sauna](https://appshunter.io/ios/topics/plunge-sauna)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*