SaunaFlow

Apple Watch auto-guides sauna>cold plunge>rest. Now records heart rate to visualize your Totonoi moment. Supports lock screen Live Activity and watch face complications.

No need to watch the clock. Apple Watch automatically guides you through sauna>cold plunge>rest right on your wrist. Build routines on iPhone, run them on your Watch, and refine your flow with every session.

◆ Start instantly with built-in presets

Choose from classic presets like 90-min standard, quick single round, or short cold plunge. Changes made on iPhone sync automatically to Apple Watch.

◆ Complete sessions from Apple Watch

No need for your smartphone inside the sauna. Phase transitions are notified by haptic feedback, and you can check time remaining and the next phase on your wrist. Use the Digital Crown to skip or pause.

◆ Build your personal routine from history

History shows completion rate, best session, notes, and score trends. Re-run great sessions or save them as new presets.

◆ Designed for consistent use

Favorite and recommended presets are easy to find on Watch. This isn't just a one-off timer — it's built for repeated use.

◆ Premium (one-time purchase)

Try it free, buy once if you need more. No subscription.

【Free】 ・Up to 3 presets ・Recent session history ・Basic score and notes

【Premium】 ・Unlimited presets ・Unlimited history and comparison ・Watch display/haptic customization ・Re-run and save sessions from history

◆ Safety Notice

Displayed times are guidelines. In high-heat environments, always prioritize your health and stop immediately if you feel unwell.

◆ Requirements ・iPhone: iOS 17 or later ・Apple Watch: watchOS 10 or later ・All data stored on-device. No personal data collected or sent to external servers.