Recovery
Wake up to context, not just a number.
Recovery, HRV, resting heart rate, and respiratory rate sit next to their own recent history, so a single low morning reads as a blip or a trend.
HRV vs 28-day baseline
Resting heart rate vs baseline
Your health history, in context
Understand the weeks behind today.
Strainlog turns your persisted WHOOP history and selected Apple Health metrics into a private, personal view of recovery, sleep, training, and trends.
The same charts you get in the app
Today, in one glance.
Data observed through 2026-09-06 · demo
Recovery
Sleep performance
Day strain
30-day recovery
30-day sleep duration
30-day strain
Last night's stages
Recovery
See recovery, HRV, resting heart rate, and respiratory trends in their recent context.
Sleep
Review sleep need, stages, consistency, and the nights behind each recovery.
Experiments
Log simple daily factors and compare your own next-day outcomes without causal claims.
A small, invite-only beta
Strainlog is a private dashboard: the owner invites each member individually, and every member sees only their own data. It stores the data needed to operate your views, keeps provider credentials server-side, and does not sell health data or use it for advertising.