Nothing better than sitting naked in a hot and humid room with strangers just to sweat like you never thought you could. Visiting the sauna, steam bath, or infrared room is not only relaxing but can also have health benefits.

HotLog is your digital companion to tracking your sauna, steam bath, and infrared sessions. HotLog allows you to easily capture all the important details of your sessions like:
- Sauna Type
- Temperature
- Humidity
- Duration
- Aufguss
- Cold Shower / Plunge

HotLog also gives you insights into your sauna habits by appealing statistics so you can see whether you sweat as often as you would like to.

If you want to, HotLog tracks all your sessions as workouts in Apple Health.

What’s New

Version 1.2

This is a very geeky update. While sweating in the office instead of the sauna (thanks global warming), we got soaked into Apple's WWDC Videos and tried out a lot of stuff.

* Calories: you now earn the calories of a brisk walk for your sweating. This will be added to Apple Health.

* Darkmode: if you got iOS13 and use Darkmode, the app (and its illustrations) will do too.
* Accessibility: we're using a lot of iOS13 features (e.g. SFSymbols) to give an improved experience for larger fonts.
* Rounded font: we finally use a rounded font on large numbers. Now the app looks even smoother.
* Settings icons: since the new Facebook logo is round we also made the rest of the icons in the settings round. Because we can.
* Space: we managed to reduce the size of the images even further so the app takes up even less space on your phone.

* A crash when you scrolled back a year in the week view and tapped a day from September 2018 - now that it's September 2019.

Ratings and Reviews

4.6 out of 5
79 Ratings

79 Ratings

Hal2150 ,

Great App!

Great app! Love that i can track my Sessions and keep track with out having to write in a journal! I love that i can easily look history and the notes i kept.

Developer Response ,

We are happy you like our app 🙏🏻 If you have any feature suggestions, let us know 😉

LilVickims ,

Add timer

Just bought the app, seems pretty good for what it has but definitely wanting an Apple Watch app where you can have a timer to keep track of exactly how long you’re in the sauna for. I always put a timer when I go in the sauna so it would be amazing to be able to do this.

Developer Response ,

Thanks for your feedback! Unfortunately we cannot encourage you to bring your device into the sauna (Apple would ban this app if we‘d do so 🙈). This is why we don‘t have a watch app, yet. We hope you understand 🙏🏻

imxbx ,

Simply Perfect

Does all that you could ask for logging saunas with Health/Workout integration.

Developer Response ,

We‘re happy you like our app 🙏🏻🙂

App Privacy

The developer, Thomas Dori, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


Thomas Dori
18.9 MB

Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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