01 — CALIBRATION
It calibrates to you.
Every week Asidu compares what you ate with how your weight actually moved — and corrects its estimate of your expenditure. Formulas are only the starting point.
COMING SOON TO IPHONE · FOR ENDURANCE AND STRENGTH ATHLETES
Eat for the training you actually do.
Asidu estimates your energy needs from your own weight trend — and shows your targets as honest ranges, not false precision.
HOW IT WORKS
Built on your data, layer by layer.
02 — RANGES
Targets as ranges.
Protein, carbs and fat are shown as target zones backed by sports-nutrition research. You see where you stand, not a number that pretends to be exact.
03 — FUELING
Fuel around your sessions.
Add your training and Asidu suggests how to time your meals around it — what to focus on before and after, with two sessions merged into one timeline.
04 — HONESTY
Honest about uncertainty.
A data-quality barometer shows how reliable your estimate is right now, and exactly what would make it better.
05 — CYCLE
Aware of your cycle.
Water retention before a period can move the scale. Asidu learns your own pattern from your cycle data and keeps it out of your trend — so your targets stay steady instead of swinging with it.
ALSO INSIDE
The rest, built for athletes.
Log in seconds
Snap a photo, type a sentence or scan a barcode. Portions and favorites remember how you eat.
Weekly budget
A big training day and a rest day balance out over the week — not within 24 hours.
Recovery signals
HRV, resting heart rate and sleep against your own baseline — shown as data, never as a verdict.
Guardrails
Flags when intake runs too low for your training load, and raises protein when you are in a deficit.
Recovery mode
Taking time off for injury or illness? Pause calibration so a few unusual weeks do not skew your numbers.
Widgets
Your ranges on the home and lock screen, updated as you log.
Apple Health
Reads workouts, weight, heart rate, sleep and cycle data. Writes your nutrition and weight back.
Swiss food data
Generic foods from the Swiss Food Composition Database, plus global product databases.
PRIVACY
Private by design.
No account.
No sign-up, no login and no email address needed to use the app.
Health data stays on your iPhone.
Apple Health data is processed on your device and never sent to our servers.
AI only when you ask.
When you log a meal with AI, only that photo or text is sent for analysis — without your name or health history.
No ads, no tracking.
No advertising, no tracking across apps, and your data is never sold.
Targets and formulas are based on published sports-nutrition research, with sources listed in the app. A full methodology page is coming soon. Details in our privacy policy.
WAITLIST
Be first on the start line.
We invite athletes from the waitlist to the beta — and let you know when Asidu launches in the App Store.
You're on the list.
We'll let you know when the beta opens. Questions in the meantime: [email protected]