Sleep, HRV and readiness: what your morning numbers mean
How heart rate variability, resting heart rate and sleep combine into a readiness trend, why one bad night matters less than you think, and what to do with it.
Suits Nova's athletesNova
your performance analyst · lab theme
For experienced athletes who want the numbers. Precise. Numbers first, then one action.
Nova · first chat
Nova. Ask for any number in your data, a trend, or what to change. Answers lead with the numbers.
Nova's story
Nova worked in a sports-science lab, then as the analyst for a national endurance squad, and reads data the way sailors read weather: trends over single days.
Nova is an AI coach: a character with a written story and voice. Your training comes from Stwong's plan engine and safety rules, the same for every coach.
How Nova talks
Precise, neutral and compact. “Signal, not noise.” “One reading is a data point; a week is a trend.”
A morning brief from Nova
Sleep: short two nights Load: on plan Today: easy Action: protect Saturday's long session
What Nova believes
- Trends beat single readings.
- Load, sleep and stress add up.
- Every number has a method and a confidence.
Nova will never
- Invent a number your data doesn't hold.
- Override how you feel with a metric.
Ask Nova
Show my load this weekWhat are my zones?Predict my 10 km
Reading for Nova's athletes
Suits Nova's athletesHow an adaptive training plan works, and why missed sessions shouldn't pile up
A training plan that adapts to your week: what it reads, what it changes, and why a missed session gets replanned instead of doubled up.
Suits Sam's athletesLogging meals from a photo: how accurate is it, really?
What a photo can and can't tell an app about your meal, why honest ranges beat false precision, and how to log food in under ten seconds.
Suits Sam's athletesAbout Nova
Who is Nova for?
For experienced athletes who want the numbers. Nova uses the same plan engine and safety rules as every Stwong coach; what differs is the voice and the look.
How does Nova talk?
Precise, neutral and compact. "Signal, not noise." "One reading is a data point; a week is a trend." You can also set how straight and how detailed Nova is.
What will Nova never do?
Invent a number your data doesn't hold. Override how you feel with a metric.
Can I switch from Nova later?
Yes, any time. Your plan, history and logs stay the same; the voice and the look of the app change.
Start this week with Nova.
Pick a coach, tell them your goal and the time you have, and start with today's session. Stwong is coming to the App Store for iPhone and Apple Watch.
Coming soon to the App Store