Haptic Feedback
Dumb oversight on the developers part.

Track your sauna sessions, from heat and cooling to rest, using your Apple Watch and iPhone. Analyze your ritual's duration, phases, and heart rate to understand your rhythm and progress. Unlock deeper insights and full history with an optional subscription.
7.0
October 15, 2026
SUNA 7.0 is our biggest update yet. NEW • Sauna Score v2: heart-rate-based heat load, scored round by round, with sliders for every phase, Rhythm and Consistency, and a comparison with your typical ritual. • Never lose a ritual: an interrupted ritual is restored with all its data. • New This Week: Sauna Score, weekly felt heat load, your personal range and rest between rounds. • New Total: profile, visit heatmap and cards of your typical rituals. • Journey: levels, milestones and the Hall of Fame. • Ritual detail with Rating and Journal: feel and heat sliders, tags and notes. • Rate a ritual straight from the notification. • Apple Watch: a new phase ring with smooth color blending, round numbers, a haptic on every phase change and optional in-sauna tips. • Timer: interval haptics in every phase, set on iPhone or Watch. • Smarter reminders based on your usual sauna days. • All-new onboarding. • iPhone Duo: Home and History side by side. IMPROVED • Redesigned Home and tab bar, smoother transitions. • Redesigned SUNA+. • Cleaner empty history with quiet Apple Health import. FIXES • In-sauna tips work without the timer, a smooth move between rounds and the correct Watch haptics setting.
MoreUnlock full history and detailed insights.
SUNA is a health and fitness app designed to help you track your sauna sessions. It allows you to monitor the heat, cooling, and rest phases of your sauna ritual, primarily using your Apple Watch and iPhone.
You can start a sauna session directly on your Apple Watch, focusing on the three phases without needing your phone in the cabin. The app also uses Watch data to record heart rate during heat.
On the iPhone, you can view your weekly rhythm, time and rounds for each ritual, duration, phases, Sauna Score, and heart rate data. You can also compare your sessions to your average and add notes.
No, SUNA is not medical advice and is not a medical device. It is designed for presence and rhythm, not for performance or medical purposes.
Suna+ unlocks your full session history and provides deeper progress insights. It is available through monthly, yearly, or a one-time lifetime purchase.
Suna+ offers a monthly subscription for $2.99, a yearly subscription for $22.99 with a 14-day free trial, and a one-time Lifetime purchase. Payments are charged to your Apple Account.
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings.
SUNA is designed to work with both Apple Watch and iPhone, allowing for seamless tracking and data analysis across both devices.