No readings yet
Add a few days.
- Import your Garmin export below, paste a few lines, or log this morning's HRV. Three days in the past week are enough for a first call.
How the call is made
Not medical advice. A training guide from your own numbers; listen to your body and see a doctor about symptoms.
Your baselines
7-day band
–
Needs 3 days
28-day band
–
Needs 7 days
Resting HR, 7-day average
–
Needs 3 days
HRV trend
Import
Garmin Connect: Reports → HRV Status (or Resting Heart Rate, Sleep) → export CSV. Any file with date and HRV columns works; resting HR and sleep are optional.
History
| Date | HRV | Resting HR | Sleep | vs 7-day | Remove |
|---|
Tidemark, £4.00 once
Free try: 3 updates (log a morning, paste lines or import a file) with the full view. One payment opens the whole app for good.
- Log, paste or import as many days as you like
- Every day you have saved, not just the last 14
- 28-day, 90-day and all-time trend charts, and CSV export
FAQ
What does the £4.00 buy?
One payment, no subscription. It opens the whole app in this browser: unlimited logging and imports, your full history, the 28-day, 90-day and all-time charts, and CSV export. The free try gives you 3 updates first.
Where is my data kept? What leaves my browser?
Your HRV, resting HR and sleep numbers are saved only in this browser (localStorage) and never uploaded. The only thing that talks to our server is the unlock check: it sends your Stripe payment reference so we can confirm the purchase, plus an anonymous page-view count. No health data goes with it.
Which browsers work?
Any current Chrome, Edge, Firefox or Safari, on phone or desktop. Private windows may forget your data when closed, so export first.
Can I get a refund?
Access starts straight away, so the 14-day cancellation right ends once you start using it. If something does not work for you, email business@thatched.ai and we will sort it out with you, including a refund where it is fair.