Sauna Log vs SaunaPro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sauna Log
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Sauna Log helps you run sauna and steam sessions with structure, consistency, and clean health tracking. Use your Apple Watch to start a session fast, choose sauna or steam room, run your preferred timer presets, and monitor live heart rate plus active and total calories while youβre in the heat. When a timer ends, you can stop or extend immediately for the next round. Sauna Log records your session details, including: - Heat type: sauna or steam room - Session duration - Heart-rate data - Energy burned: active and total calories - Sauna temperature and humidity - Cold shower selection Remember your usual temperature and humidity settings, so recording regular sessions takes seconds. The iPhone app gives you quick control of timer presets, heart-rate thresholds, session history, and longer-term progress insights. See your heat time, active days, heart-rate response, calories, and sauna-versus-steam patterns across weeks, months, and years. Optional monthly reminders help you return to your progress and stay consistent. Free to try for 3 sessions, then unlock with a one-time purchase.
SaunaPro
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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 β 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.
Screenshots
Verdict
The clearest difference is in-app purchases: SaunaPro at none against Sauna Log's 1. SaunaPro also leads on update cadence (daily vs every 9 days). Sauna Log's advantage is iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Sauna Log sells 1 one-off in-app purchase. SaunaPro asks for nothing beyond the download.
Sauna Log ships an update every 9 days, SaunaPro daily. The most recent releases landed on September 15, 2026 and September 17, 2026 respectively.
| Parameter | Sauna Log | SaunaPro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Daily β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, Apple Watch β better | iPhone |
| Requires iOS | 17.0 β better | 26.2 |
| Further details β not scored | ||
| Size | 10 MB | 3 MB |
| Age rating | 12+ | 17+ |
| Developer | Barnaby Wood | Bruce Milligan |
In-app purchases
Sauna Log
- Sauna Log Unlock$2.99
SaunaPro
No in-app purchases









