Frequently Asked Questions

How do I start a session?

Tap the active session tab, configure your temperature and sauna type, then press Start.

How do I log a past session?

Use the manual log option to enter session details retroactively including rounds, temperature, and wellness metrics.

How do I delete my data?

Go to Settings inside the app and tap "Erase all data" to delete all your sessions, body profile and preferences, or "Delete body data" to remove only your weight, height, sex and year of birth. Erasing does not touch Apple Health: to remove the workouts, energy and water the app saved there, use "Unlink and delete from Health". A deleted session stays in Recently deleted for 30 days before it is removed for good.

Is my data shared or uploaded anywhere?

Your sessions, notes, photos, body profile and Health data stay on your device: the app never sends them to us or to anyone else. On its own, the app only asks Apple's App Store whether a new version exists, without anything about you or your sessions. If you agree, it also shares up to four usage milestones (for example that you saved a second session) with a random identifier, never your session details. This is off unless you say yes, and you can switch it off in Settings at any time. The website measures its audience without cookies. Details are in the Privacy Policy.

Does the app support HealthKit?

Yes. If you connect Apple Health, the app reads heart, sleep, energy and body data locally to estimate sweat loss and calories and compare your recovery with your sessions, and can save your sessions as workouts. It never uploads HealthKit data. The Privacy Policy lists every data type.

Still need help?

Send us an email and we'll get back to you as soon as possible.

support@saunametrics.app

Sauna Metrics is an independent app and is not affiliated with Apple Inc.