SaunaPro
Sauna & Cold Plunge Tracker
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
SaunaPro automatically detects and analyzes your sauna and cold plunge sessions using heart rate data from your Apple Watch or compatible smartwatch.
BENEFIT ZONES
See exactly how your body responds to heat and cold. SaunaPro maps your heart rate to therapeutic zones during every session:
- Sauna: Warm-Up, Light Heat, Cardio, Deep Heat, and Extreme zones
- Cold Plunge: Cold Shock, Activation, Adapting, Vagal Tone, and Deep Calm zones
Each zone shows time spent, BPM range, and what your body is gaining.
AUTOMATIC SESSION DETECTION
Start an "Other" workout on Apple Watch (or Yoga/Mind & Body on Garmin) before your session. SaunaPro automatically finds it, merges multi-round sessions, and shows your complete session with peak HR, baseline comparison, and recovery time.
YOUR FULL DAY IN ONE VIEW
See your entire day's heart rate as a continuous story. Gym sessions, sauna visits, cold plunges, walks — all identified and colour-coded on one interactive chart. Tap any point to see your exact heart rate at that moment.
MULTI-WATCH SUPPORT
Works with Apple Watch, Garmin, Fitbit, and any watch that syncs to Apple Health. Configure which workout types trigger session detection in Settings.
SESSION INSIGHTS
- Peak heart rate and elevation above baseline
- Heart rate recovery time after each session
- HRV impact (before vs after)
- Water and wrist temperature tracking
- Notes for each session (supplements, seat position, water temp)
- Confirm or dismiss auto-detected sessions
BUILT FOR CONTRAST THERAPY
Track the full sauna-plunge-rest cycle. SaunaPro handles multi-round sessions with configurable merge windows, so your 60-minute sauna visit with breaks shows as one complete session.
PRIVACY FIRST
All data stays on your device. No accounts, no cloud, no analytics, no ads. Your health data is never shared with anyone.
IMPORTANT SAFETY NOTE
Apple Watch is designed for temperatures between 0-35C (55C for Ultra models). Traditional saunas exceed these limits. SaunaPro supports manual session entry and before/after metrics for sauna tracking. Cold plunge temperatures are within the watch's operating range.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
NEW IN v1.1:
CONTRAST THERAPY TRACKING
Automatically detects sauna + cold plunge sequences and groups them as contrast therapy sessions. See round counts, rest gaps, and earn the Søberg badge when you end on cold.
COACHING INSIGHTS
Get personalized coaching based on your session history — session quality scores, weekly progress, protocol tips, recovery trends, and streak tracking.
AI COACH (Apple Intelligence)
On supported devices, get AI-powered coaching insights analyzing your session patterns and providing actionable recommendations.
WATCH CONTRAST MODE
New guided contrast therapy mode on Apple Watch — track sauna and cold plunge rounds with per-phase heart rate monitoring, haptic cues between phases, and automatic sync to iPhone.
SESSION MANAGEMENT
Reclassify any session as Sauna, Cold Plunge, Swimming, or Other. Swimming workouts now correctly tracked as their own category.
The developer, Bruce Milligan, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bruce Milligan
- Size
- 3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - Mac
Requires macOS 26.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
- Copyright
- © 2026 Bruce Milligan