Sauna
Live heart rate placed into five effort zones plus a Sauna Load score. On the lock screen and Dynamic Island while you sit.
You know the temperature. You know the time.
What is your heart actually doing?
See your live heart rate, understand your effort zone and capture your complete training-to-cold routine in one simple app.
Know your zones.
- One plan: AUD $9.99 a year — launch price, locked in while you stay subscribed
- Built in Australia
- Wellness estimates, not medical claims
Works with
Bluetooth chest strapGarmin · Broadcast HRApple HealthOuraWHOOPLive ActivityShare sheet · Strava
Your stack
Works with the apps you already use.
SaunaMind is the hub for heat and cold. It listens to the sensors you already own — a chest strap, a Garmin watch, or an Apple Watch through Apple Health — and reads resting heart rate from Apple Health, and readiness from Oura and WHOOP. Every finished session goes back out to where you keep your fitness life: Apple Health as a workout, Strava as an activity, Instagram as a share card. Updates arrive in the background, so the app is current before you open it.
- InLive heart rate from Polar, Wahoo, CooSpo, Garmin and any standard Bluetooth strap, a Garmin watch with Broadcast Heart Rate on, or an Apple Watch through Apple Health: start any workout on the watch and SaunaMind reads its heart rate every few seconds. There is no Bluetooth broadcast from an Apple Watch, so a strap or Garmin is the sharpest option.
- OutEach session written to Apple Health as a workout with its full heart-rate curve, uploaded to Strava with its heart-rate stream, and shared as a card to Instagram.
- AutoOura and WHOOP sync on open and through provider webhooks; Apple Health background delivery keeps readings current between sessions.
SaunaMind
Garmin watchBroadcast HR
Polar & strapsLive heart rate
Apple WatchVia Apple Health
OuraReadiness
WHOOPReadiness
StravaActivities
Apple HealthWorkouts in & out
InstagramShare card
- Heart rate and readiness in
- Sessions and cards out
Reviews
What people say.
A note from the founder
SaunaMind started because I had one simple question: what is my heart actually doing through my entire training and recovery routine — from lifting weights, to sitting in a ridiculously hot sauna, to voluntarily jumping into freezing water afterwards?
Apparently, relaxing normally wasn’t enough for me.
I was already using a Polar strap, Garmin watch, Oura Ring, Apple Health and Strava, but all my information lived in different places. I wanted one simple app that brought everything together, helped me understand my heart-rate zones and allowed me to share the suffering — I mean progress — with my mates.
After more than 180 sauna sessions and counting, SaunaMind has become something I genuinely use and believe in. It was created from my own routine, curiosity and passion for training and recovery.
Now I want to share it with anyone who wants to train, recover and better understand how their body responds — without needing a science degree to use the app.
Know Your Zones. Own Your Recovery.
“I’ve been looking for a sauna / heat tracking app to track both my sauna sessions and hot baths. I use them for both my recovery and to do passive heat training. I’ve tried so many other apps until I found SaunaMind. It’s the first one I’ve found that lets you connect your Heart Rate monitor and view it live, and then also feeds that data back to Apple health to distribute to my other apps and calculate the sessions strain and also track my hr trends over time.”
CameronKnow your zones.
“I don’t use sauna application but have found the training section of this app to be invaluable in aiding me to keep within planned zone based on my training plan. It syncs with my Oura ring and has become key to measure whether my training output was a success. Also like the colour scheme and the fact it reminds me to drink water!”
AshleyKnow your zones.
How it works
Four steps. One complete routine.
- Step 01
- Step 02
- Step 03
- Step 04
- 01
Connect your heart.
Pair a Bluetooth chest strap or Garmin once from More › Devices. You can still log a session without one.
- 02
Start your routine.
Choose Training, Sauna or Cold — or capture the complete sequence as one routine.
- 03
See what your heart is doing.
Watch your heart rate and effort zone change live while your session is underway.
- 04
Understand what happened.
Every session keeps its numbers, its heart-rate curve and a plain comparison with the last one of its kind. For a cold plunge that means where your heart rate started, where it finished and how far it settled.
Share
One card. Every session.
Five zones
Your heart rate, in five ranges.
Each zone starts a set number of beats above your resting heart rate: +31, +62, +93 and +124 bpm. No body temperature is measured or estimated.
Very LightEasing in
LightSettling
ModerateWorking
HardStrong effort
PeakUpper range
- Very Light60–90 bpm
- Light91–121 bpm
- Moderate122–152 bpm
- Hard153–183 bpm
- Peak184+ bpm
Wellness estimates to help you read a session, not clinical measurements. Keep your resting heart rate accurate under More; it sets every zone.
What it does
Simple tools for everyday recovery.
No clutter. No inflated promises. Just the session, recovery and progress information you actually use.
Cold
Your heart rate on entry, then how far it settles back toward resting while you stay in, live as a percentage. Round counts for contrast sessions.
Training
Track training in the same session system with optional timing and live zones.
Readiness
The readiness your Oura or WHOOP already gives you, next to your resting heart rate and recent sessions.
Hydration
Keep simple water logging close to your daily session and recovery view.
Progress
Streaks, weekly minutes, the heart-rate curve of every session, and a share card for any workout.
Early access
Early, honest, and built close to the sauna.
TestFlight
Early testers see it first.
SaunaMind is in TestFlight ahead of the App Store. Invites go out in batches as testing spots open.
Built in Australia
Australian made.
Made by SAUNAMIND PTY LTD, a small Australian team that uses the app in real saunas, cold plunges and gyms every week.
@thesaunamind
Open in Instagram
Session cards, build notes and what we are testing this week.
Questions
Straight answers.
Do I need a heart-rate monitor?
No. You can still log sessions without one. A Bluetooth chest strap, or a Garmin watch with Broadcast Heart Rate on, gives you live effort zones.
Is it safe to wear a heart-rate strap or watch in the sauna?
From our founder: I have personally used Polar heart-rate straps and Garmin watches during more than 180 sauna sessions, and counting, without experiencing any issues. However, this is my personal experience only. Wearable devices may have manufacturer-specified operating-temperature limits and may not be designed for sauna conditions. Heat can affect their accuracy, performance, battery life or warranty. Use any wearable in the sauna at your own discretion and always follow the manufacturer’s instructions and temperature limits. Heart-rate readings are provided for general information only and should not be treated as medical or safety advice.
Can I use my Garmin watch instead of a strap?
Yes. Turn on Broadcast Heart Rate on the watch, then connect it from More › Devices › Garmin watch. If it never shows up, pair it once in iPhone Settings › Bluetooth and scan again.
What are the effort zones?
Five ranges based on your live heart rate relative to your resting heart rate: Very Light, Light, Moderate, Hard and Peak. No body temperature is measured or estimated. They are wellness estimates, not clinical measurements.
Does SaunaMind sync with Apple Health?
Yes. With your permission it reads your resting heart rate and writes every finished session to Apple Health as a workout with its heart-rate curve. Health data stays on your device.
Does SaunaMind force fixed session times?
No. Sessions can start open-ended. Timers are available when you want structure.
What does it cost?
One plan with every feature: AUD $9.99 a year through the App Store. That is the launch price, and it stays yours for as long as you keep your subscription, even after it goes up for new members. Prices vary by country and are shown before you buy.
Is SaunaMind medical advice?
No. SaunaMind is a general wellness and fitness app. Its scores, zones and readiness context are wellness estimates, not medical measurements.
How do I get early access?
Join the waitlist and we will send TestFlight access as testing spots open.
More on the support page or in the guide.
Early access
Get the app now.
No waitlist. Two steps on your iPhone and you are in.
- 1
Install TestFlight from the App Store.
- 2
Tap the button below on your iPhone and accept the invite.
On a computer? Send yourself the link: testflight.apple.com/join/WWrpYrYr
Want the setup guide for your device and product updates by email?
One plan with every feature: AUD $9.99 a year through the App Store. That's the launch price, and it stays yours for as long as you keep your subscription, even after it goes up for new members.
We only email the setup guide and product updates. General wellness and fitness only; SaunaMind does not provide medical advice, diagnosis, treatment or monitoring.