Set it and step in.
Choose sauna or steam room, select a remembered timer, and start from your wrist. The session is designed to keep its timing when the display goes dark.
Heat, measured
A better way to log sauna and steam.
Sauna Log turns every heat session into a clear, useful record, right from your Apple Watch. Set the timer, follow your heart rate, and build a picture of your progress over time.
Free to try for three sessions. Unlock once, use without limits.
More than a countdown.
Sauna Log keeps the important parts simple while giving your sessions enough context to become useful over time.
Understand your heat.
See live heart rate, active and total calories, and optional minimum or maximum heart-rate alerts with Watch haptics and notifications when enabled.
Notice the pattern.
Review your sessions on iPhone with heat per active day, duration trends, sauna and steam mix, and personalised insights.
Made for Apple Watch
Simple enough for the sauna.
The Watch experience is deliberately focused: choose your heat, choose your time, slide to start. During the session, the essentials stay close at hand, with additional controls available by scrolling when needed.
See the Watch flowDuring a session
12:48time remaining
118 bpmheart rate
84 kcalactive calories
102 kcaltotal calories
“Your heart rate is building.” Personal guidance based on this session and your recent same-type sessions.
Your heat history
SaunaSteam room
42 minheat per active day
Trendduration by time window
Progress, not pressure
See the habit forming.
Switch between week, month and year views. Swipe back through earlier windows and see how often you use heat, how long you stay, and how your sessions are changing.
Explore InsightsQuestions, answered.
Clear answers for people deciding whether Sauna Log is right for their sauna routine.
Is Sauna Log a sauna timer for Apple Watch?
Yes. Sauna Log is designed to run the timer and session tracking from Apple Watch, with the iPhone app used for settings, history, purchases and insights.
Can I track a steam room session?
Yes. Choose Sauna or Steam Room before starting. Each heat type can remember its own temperature and humidity defaults.
Does Sauna Log write to Apple Health?
With 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.
Can I use it away from my iPhone?
Yes. The Watch app is designed to operate during a session without your phone nearby, then sync the completed record when the devices reconnect.
Start your next session
Get Sauna LogMake heat part of the record.
Sauna Log requires iPhone and Apple Watch. Record three completed sessions free, then unlock unlimited use with one in-app purchase.