Recovery
Is your body ready to take on load? A 0–100 score every morning.
82
For Apple Watch · iPhone
Recover better.
Train smart.
Tonus reads your Apple Watch and tells you every morning whether your body is ready — no cloud, no account.
Get the app7 days free · no commitment
Recovery
82
Ready for a hard session
72 ms
HRV
49
Resting HR
7h42
Sleep
Works with
With what you already
wear on your wrist.
Apple Watch, iPhone, Apple Health. Nothing to buy, nothing to sign up for.
- Apple Watch
- Apple Health
- iPhone
No sensors to buy. No account to create.
One number to know
where you stand.
Three scores computed each night from your heart rate, HRV and sleep.
Strain
Your daily load, session after session — so you never do too much, or too little.
61
Sleep
Light, deep, REM: what your night actually gave you, stage by stage.
74
HRV · HR · Sleep
Calculated while you sleep. Ready before your coffee.
Apple Watch · 28 sports
Every workout,
straight from your wrist.
Start a workout on Apple Watch, follow it live on iPhone, share a photo card at the end. 28 sports.
Running
12.4 km
58 min · Tonus
Cycling
42 km
1 h 31 · Tonus
Swim
2,000 m
44 min · Tonus
Strength
6 moves
52 min · Tonus
Yoga
Flow
35 min · Tonus
Hike
9.8 km
2 h 10 · Tonus
Climbing
14 routes
1 h 20 · Tonus
Ski
31 km
3 h 05 · Tonus
AI coach100% on your iPhone
A coach who knows
your nights.
Ask him anything — he knows your nights, your load, your recovery.
100% on-device — nothing ever leaves your phone
Tonus
online
What should I do today?
Recovery at 68, HRV below your baseline. 40-min walk or yoga. Skip the strength session.
Explain my HRV
72 ms tonight, baseline 78 ms. Likely cause: alcohol or a late meal. Check back in 2 days if it holds.
Ask Tonus anything…
Everything Tonus reads
Your data.
All connected.
HRV, sleep, effort, activity, heart rate, calories. Tonus cross-references them to tell you what to do today.
Recovery
82
Ready to push hard
HRV · night
+9 %72 ms
Strain
/ 2112,4
Optimal zone
Sleep
7 h 42
Deep 1 h 41 · REM 1 h 50
It all stays
on your iPhone.
No account. No server. The AI coach runs locally. Delete the app and your data goes with it.
- Sans compte
- Sans serveur
- IA locale
- Export libre
Made with care.
Used every morning.
Built for people who want to train for the long run, not just hard.
★★★★★
Finally clear
TestFlight tester
« One number in the morning and I know whether to push or ease off. Exactly what I wanted from my Watch. »
★★★★★
Calm, not stressful
TestFlight tester
« No guilt-tripping notifications. The dark theme is gorgeous. »
★★★★★
Nothing leaves the phone
TestFlight tester
« No account to create — rare these days. I checked: not a single network request. »
Ready when you are.
One morning at a time. Tonus tells you where you stand and helps you move forward without burning out.
Get the app7 days free
