The BeWell Score

The score blends two things: passive biology (about 60%) — sleep, movement, and nocturnal heart-rate variability from HealthKit — and how you actually feel (about 40%) — a quick daily check-in of mood and energy.

Measured against you — the ergodicity principle

Population averages don't apply to individuals. Someone sleeping 6.5 hours may be sleeping more than their own norm; someone at 7,000 steps may be far below theirs. So every metric is scored as a Z-score against your own 14-day rolling baseline— how today compares to your recent self — never against a population benchmark. This is what prevents the "recovery trap" where a red score makes a fine day feel like a failure.

The first week — cold start

On day one BeWell silently reads your last 30 days of sleep, steps, and HRV to establish a personal baseline immediately, so the objective score is yours from the start. Because we can't fetch past moods, the subjective side uses a simple bridge for days 1–7 (a 7/10 mood gives 70% of mood points), then transitions to your rolling baseline. During this window the score shows a calm "Calibrating" badge rather than a blank screen.

State, not a verdict

The score reflects your current state— it doesn't hand out the day's habits and it isn't an adherence grade. Your habits come from the weekly plan; the score simply tells you where you are. Breathing sessions and habit completion are tracked separately and never feed the score, which keeps it a clean measure of wellbeing rather than effort.

See how the plan responds to your state in the Protocol.