Sauna tracker
Sauna bathing is one of the most studied longevity practices on the planet — but most people have no idea if they're hitting the weekly dose that actually moves the needle. Log every session, track contrast therapy, and build streaks that keep you coming back to the heat.
Free to use · No credit card · 2 sec to log
Also track: Cold Plunge · Breathwork · Workouts · Sleep · Supplements · Fasting
The problem
No fitness app has a dedicated sauna category — your sessions go untracked or get buried as a "custom activity"
You can't tell if you're hitting 57+ minutes per week, the threshold linked to longevity benefits
Contrast therapy (sauna + cold plunge) is powerful but impossible to analyze without logging both sides
OutLast logs sauna duration, pairs it with cold plunge for contrast therapy tracking, and builds streaks that keep you consistent
How it works
Tap once after your session. Pick your duration from presets (10, 15, 20, 30, 45 min) or slide to a custom time. Done in seconds while you're still cooling down.
Log a cold plunge right after your sauna for complete contrast therapy tracking. See both sessions side by side and track how the combination affects your recovery.
Every consecutive day you sauna, your streak grows. Track weekly frequency, total minutes, and connect heat exposure to how you feel. Data-driven sauna practice.
What you get
One-tap presets for 10, 15, 20, 30, and 45 minutes. Or slide to any custom duration. Your sauna tracker should be as simple as stepping out of the heat and tapping once.
Pair sauna sessions with cold plunge entries to track your full contrast therapy protocol. See heat and cold side by side and analyze how the combination affects recovery and energy.
A consecutive-day counter that rewards showing up. See your current streak, longest streak, weekly frequency, and total sauna minutes at a glance.
Log how you feel after each session. Over time, discover which duration, temperature, and frequency gives you the best recovery and energy. Optimize your sauna protocol with data.
The science
What people say
“I was doing sauna 4–5 times a week but had zero record of it. Now I can see my weekly minutes and know I'm hitting the 57-minute threshold. The streak counter is addictive.”
“The contrast therapy tracking is what I needed. I log sauna and cold plunge back to back and can actually see how the combo affects my sleep and energy the next day.”
“Tried spreadsheets, tried notes, tried nothing. OutLast takes five seconds after I step out. 50-day streak and my weekly average is over an hour for the first time.”
Questions
Every sauna session you don't track is progress you can't see. Start logging today and build a heat exposure habit backed by data.
Free to use. No account required to start.
Start tracking sauna sessionsFree to use · No credit card · Takes 2 seconds