01
You decide. NAFA shows you why.
NAFA does not push advice. It measures and explains. The call is still yours. The difference is that it is based on what your data says, not a hunch.
NAFA
Your training, food, and body — measured, not guessed.
NAFA reads your lifts, meals, sleep, and body measurements together and tells you what they add up to today. Every recommendation shows the numbers behind it. Follow it, push back on it, or ignore it.
The app
One reading, every morning.
Today’s call, the numbers behind it, and the one that would change it — with your body-composition trend charted from every measurement you’ve logged. No streaks, no noise.
How it works
02
Every decision explains itself.
No black box. Every recommendation shows the three numbers that produced it and the one that would change it. You can agree or disagree. That is the point.
03
It gets sharper the longer you use it.
The more you log, the more accurate NAFA becomes. Your history is the asset. Streaks, scores, and badges are not.
What it reads
- Training history
- Nutrition logs
- Supplements
- Blood work
- DNA markers
- Recovery context
- Body measurements
HRV · 7d−14%vs. trailing 28-day mean
Protein · 7d−19 gvs. target
Sleep · 7d−42 minvs. 30-day median
Hold intensity. Add 30 g protein at the second meal. Delay progression by one session.
Change condition: HRV recovery by ≥0.5 SD by Day 414 flips the recommendation to resume progression.
This is a sample. Your data will be different.
FIG 01 · LEAN MASS (kg)n=18 obs · 17 months
2026-04-01 · Progression resumed after cycle 14
Against
Other apps make you choose.
MyFitnessPal counts calories. Hevy counts sets. Whoop counts recovery, if you wear the strap. Future gives you a human, for $199 a month.
NAFA reads your food, your training, and your HealthKit numbers in one place. The coach actually follows up. If you held bench at 60×8 last week, it remembers today and checks in tomorrow.
No wearable. No human on retainer. No second app to reconcile.
NAFA
Whoop
MFP + Fitbod
Food tracking
✓
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✓
Lift tracking
✓
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✓
Coach that follows up
✓
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No hardware required
✓
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✓
Against magical thinking. For the work only you can do.
NAFA is not a substitute for medicine or a doctor’s judgment. It covers the part of your fitness that no clinician and no injection will do for you. Measurement, evidence, the reward of paying attention.
Who this is for
- — You already track your sleep, HRV, or body composition without being nudged to.
- — You don’t trust cookie-cutter advice and check your sources when you can.
- — You want decisions you can audit. Not verdicts you have to accept.
- — You would rather see the numbers behind a recommendation than a motivational quote.
- — You have used Whoop, Oura, or Levels and found their explanations shallow.
- — You want a calm, serious tool. Not a gamified consumer app.
- — You take your body seriously.
If three of these describe you, NAFA will earn a place in your morning. If not, it won’t.
Frequently asked
How is NAFA different from Whoop, Oura, or Levels?
Those are sensors. Each measures one thing well. NAFA reads training, food, supplements, body, and recovery together, and tells you what the combined picture means today. You can plug in your existing sensors. You don’t have to.
Do I need a wearable to use it?
No. NAFA works without one. Log manually, and the recommendations get sharper as you add more data. Wearables help. They are not required.
Is this an AI coach?
No. NAFA does not cheerlead. It reads your data, shows the numbers, and explains the decision it would make. The call is yours. Agree, disagree, or ignore.
What happens to my data?
Your data is yours. It stays in your account, encrypted end-to-end, and is never sold or shared. Export it with one click. Delete it with one click.
How do I get it?
Download it from the App Store or sign up on the web. The application-and-invite phase is over, and pricing is shown in the app before you pay for anything.
Can I use it alongside a physician or coach?
Yes. NAFA is not a substitute for medical care. If you are working with a doctor, nutritionist, or coach, NAFA gives them better data to work with.
What does "every decision explains itself" mean in practice?
Every recommendation shows the three numbers that produced it and the one that would change it. If NAFA says "hold intensity today," you see the HRV trend, the protein gap, and the sleep debt behind it. You also see the threshold at which it would flip.
Get the app
NAFA is public now.
We started with applications and invite codes. That phase is over. Download NAFA from the App Store or create an account on the web, and you’re in. It works with or without a wearable, and you see pricing before you pay for anything.