Support
We are a small team and we read every message. The fastest way to reach us is email.
Contact
Email [email protected] and we will get back to you within two business days.
[email protected]Frequently asked questions
What does StressTide need to work?
An iPhone on iOS 18 and an Apple Watch that records heart rate, HRV and sleep. StressTide reads those signals from Apple Health, read-only.
Where is my data stored?
Entirely on your iPhone. StressTide has no account and no server, and nothing about your body is uploaded. See our Privacy Policy for details.
Is StressTide a medical device?
No. StressTide offers an honest interpretation of your body’s signals. It does not diagnose, treat or prevent any condition — observed, not a diagnosis.
What does StressTide Pro include?
Free includes your current tide, confidence and freshness, today’s trend and three breathing patterns. Pro adds your full month and year history, all five breathing patterns, CSV/JSON export and the advanced Body breakdown — $3.99/month or $29.99/year, with a 7-day free trial.
Why does it sometimes not show a number?
Because it’s being honest. If your Watch is off, you’re mid-workout, your baseline is still forming, or access is off, StressTide tells you rather than inventing a reading.
How do I export or delete my data?
Anytime in Settings: export a full copy as CSV and JSON, or delete everything StressTide stores on your iPhone.