Sauna Flow vs Sauna Tracker & Session Log

Time your sauna sessions from your wrist and see your heart rate zone as you go. Sauna Flow is a sauna timer for Apple Watch that keeps a clear record of every session on your iPhone. Set a target time, start on your Apple Watch, and stay focused on the heat. Afterwards, your iPhone shows how the session went and how your routine is building week by week. ■ Round mode • Plan 1 to 5 rounds of sauna, cool-down and rest on your Apple Watch. • Each sauna phase starts when you tap. Cool-down and rest move on automatically, with a haptic at each change. • Your iPhone shows a breakdown for every round. ■ Live heart rate on your Apple Watch • See your current heart rate and zone during the session, with optional alerts when your zone changes. • Zones are based on a max heart rate you choose: the default, an age-based estimate, or your own value. ■ Your sauna routine • A session calendar that marks the days you went. • Current and longest streak, plus a weekly goal you set (1 to 14 sessions). • Optional reminders on the weekdays and at the time you pick. They stay off unless you turn them on. • Session details: duration, average and highest heart rate, time in each zone, plus effort and stability scores for single sessions. • Export your sessions to CSV or share a session card. ■ On your watch face • Add the Sauna Flow complication to open the app in one tap. ■ Sessions you can count on • Each session stays on your Apple Watch until your iPhone confirms it is saved, and is resent automatically. • If the app closes mid-session, the session is recovered and saved as interrupted. • If your Apple Watch gets too hot, it warns you. If it overheats, the session is saved and ended. ■ Apple Health • Sessions and heart rate data are saved to Apple Health. ■ Your language • Korean, English, German, Finnish, Japanese, Dutch and Russian. Choose in the app's settings; your Apple Watch follows. ■ Premium • Your 3 most recent sessions are always available. Sauna Flow Premium, an in-app purchase, unlocks your full session history and full export. ■ What you need • Apple Watch with watchOS 10 or later to record sessions. ■ Please note • Sauna Flow is not a medical device and does not provide medical advice. Heart rate zones are informational estimates, not medical measurements. • If you have a cardiovascular condition or other health concerns, consult your doctor before using a sauna. • Stay hydrated and avoid overheating. Stop your session immediately if you feel unwell. • Apple Watch and iPhone are not designed for extreme heat. Do not expose your device to sauna temperatures beyond its operating range (Apple Watch: 0–35°C / 32–95°F); keep it somewhere safe. Protecting your device is your responsibility.

PREMIUM — PURCHASE REQUIRED: All features described below are part of Pro and require a purchase: a weekly or yearly auto-renewing subscription, or a one-time lifetime purchase. WHAT YOU GET Track every sauna and temperature contrast therapy session. Record temperature in Celsius, duration in minutes, rounds, cooldown time, a perceived benefit rating from 1 to 5, and notes. Six session types: Sauna, infrared, steam room, cold plunge, ice bath, contrast therapy. Guided session timer: Protocols with guided heat → cold → rest phases. Six preset programs from beginner sauna to advanced athlete. PERFECT FOR Anyone building a sauna habit or tracking temperature contrast therapy. Whether you are starting out or optimizing performance, see your sessions accumulate over time. WHAT YOU'LL SEE Session history list (7-day view). Heat-minute trend chart. Session-type breakdown. Perceived benefit trend. Patterns by day of week. Session streak by day. Health insights cited from research (Hussain & Cohen 2018, Cleveland Clinic). Safety guidelines are built into every session. PRIVATE BY DEFAULT All data stored locally via SwiftData. Your privacy stays yours—no cloud sync, no account to create, no tracking. PREMIUM (PURCHASE REQUIRED) SaunaLog Premium unlocks complete session tracking with guided timer, insights, statistics, and subscription levels: Weekly, Yearly, or Lifetime purchase. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia