Sapere.
iOS companion app coming
Studio reads your own intervals.icu data and makes the call a coach would: go, ease off, or rest. Every number explains itself, and your own sense of the day adjusts the call.
Launching soon on iOS · free to start.
The answer is the first thing you see; the depth is one tap under it.
Go, ease, or rest — with a clear effort ceiling for the day, in plain language.
Studio weighs your load and form (fitness, fatigue, form) against your readiness and your own check-in, then answers in words — not just a score. If today’s planned workout clashes with your recovery it suggests an adjustment; you decide.
Sources: Banister (1991) impulse-response · Coggan / TrainingPeaks (CTL·ATL·TSB).How ready your body is to train, from heart-rate variability, resting heart rate and sleep.
Your recovery signals are scored against your own rolling baseline with robust z-scores, so one odd night doesn’t swing the call. HRV is read as a 60-day baseline, smoothed against a 7-day rolling average; we use SDNN (what Apple provides natively) and don’t claim the separate rMSSD evidence base.
HRV method after Shaffer & Ginsberg (2017); baseline reading is ours.Tap any metric for what it means, why it matters now, the reference and the source.
Estimates are labelled “≈”. On a fresh account Studio tells you it is still building your baseline instead of faking precision. The recovery-deviation cue is a non-medical attention signal — it flags when several signals drift off your baseline together, never illness.
See the full honesty page for every model and reference.A live second screen on your phone while you ride (with the Edge fields), plus sleep, body and form trends that never exaggerate.
While you ride, Studio mirrors your block, target vs actual power, elapsed and remaining, NP/TSS/kJ on a second screen. The cockpit shows your trends honestly — a zoomed axis is marked, and a thin series says so.
The Garmin data fields are coming; the live screen pairs with them.Studio works either way — it just shows the honest fallback when a number can’t be computed.
Your watt-based numbers fill in: form, efficiency context and the power-duration profile. The rider-type radar sharpens as you test.
Readiness, sleep, body and the daily decision all still work. The watt-only numbers stay blank rather than guessing — honest over fake precision.
A non-medical attention signal. When several recovery signals drift off your own baseline together for two or more days, Studio flags that something is off and suggests an easier day. It does not detect, diagnose or predict illness. Wrist temperature is read as a deviation from your baseline, never as a fever or temperature reading.
Sapere is not a medical device and does not provide medical advice. More on the science →
iOS — launching soon. Built solo by a cyclist; free to start.
An intervals.icu account (sign-in or an API key you provide). Apple Health for Apple Watch recovery is coming; read-only, processed on your device.
English, Dutch, German, French, Italian and Spanish — labels switch with your device language; units and metric abbreviations stay neutral.
Every part feeds one honest daily answer. Explore the family →
Sapere is a training & wellness tool — not a medical device. It does not diagnose, treat or predict illness, and does not give medical advice.