Sauna or steam, your choice.
Choose the heat type, pick one of four remembered timer defaults, and slide to start. Add more time at the end using any of your defaults.
Everything you need to make heat useful.
Sauna Log gives you a calm, reliable way to track sauna and steam room sessions without turning the experience into a data project.
The iPhone side
Set it up once. Keep the record.
Manage timer defaults and heart-rate alerts on iPhone, then let the Watch handle the session.
Live response, not guesswork.
See heart rate while you are in the heat. Personal guidance compares your response with the start of the session and recent same-type sessions.
Active and total calories.
Keep an eye on active and total calories during the session, then see them alongside the saved record on iPhone.
Remember the room.
Enter temperature and humidity on the Watch when you want to. Sauna and steam room defaults are remembered separately, so repeat visits take less effort.
Keep your health record connected.
With your permission, Sauna Log writes eligible workout and heart-rate data through HealthKit. The selected heat type is stored in Sauna Log metadata; Apple may display the workout under its generic category.
See progress over time.
Review heat per active day, duration trends, sauna and steam mix, heart rate and heat load across week, month and year views.
Built for real use
How it works on WatchLess screen. More session.
Haptics, background timing, optional heart-rate alerts and delayed sync help Sauna Log stay useful while your phone is out of reach.