AI strength coach · free

One person.
One plan.

n1 is a strength coach in your pocket that recalibrates to your real training data — every set, every session. Science-backed programming that adapts to how you actually train, recover, and progress.

Start training — free See it in action
Free to useNo credit cardWorks offline5 languages
Adapts every setRCT-cited programmingWorks offline in the gymFree — no paywallYour data stays private

See it in action

Your next session, already built.

Open n1 and today’s workout is waiting — the right movements, sets, and loads for your recovery. Here’s a full session, start to finish.

app.iamn1.app
Product film
A 30–60s screen recording: open the app → today’s readiness → start the workout → log a set → watch the plan adapt. Muted autoplay-loop works great here.
1920 × 1080 (landscape) or 1080 × 1920 · MP4 / WebM

Inside the app

Everything a serious lifter needs — nothing that gets in the way.

Adaptive training

A session built for today — not a template from last year.

n1 generates the right movements, sets, and loads for each workout, tuned to your recovery and your last performance. Swap anything and it rebalances your weekly volume on the fly.

  • Per-set load recommendations from your real history
  • Swap an exercise, keep your volume balanced
  • Deloads and periodization handled automatically
Screenshot · Train
The Train tab — “Pick how to train” with the AI Flex Plan and a generated Push day.
1080 × 2340 · PNG
Readiness & recovery

Train hard when you can. Back off when you should.

Connect Apple Health or Health Connect and n1 folds sleep, resting heart rate, and steps into a daily readiness score — then tunes the session to match. No wearable? It still works from what you log.

  • A daily readiness score, not a guess
  • Sessions scale to how recovered you are
  • Clear rest-day guidance when you need it
Screenshot · Home
The Home / Today screen — the readiness ring and the recovery breakdown.
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Visible progress

Proof the work is working.

Strength trajectories, body-composition projections, a muscle-distribution heatmap, adherence, and a year-in-review “Wrapped” that makes months of effort tangible.

  • Estimated-1RM trend per lift, with PR markers
  • Body-composition projection toward your goal
  • Hex-radar muscle map + all-time personal records
Screenshot · Progress
The Progress tab — strength trend, the hex-radar muscle map, and PRs.
1080 × 2340 · PNG
Your AI coach

A coach that has actually read your training log.

Ask anything — why you’re sore, what to do tonight, how to break a plateau — and get an answer grounded in your real sessions, readiness, and numbers. Free for everyone.

  • Draws on your logged sets, not a generic template
  • Explains the “why” behind every recommendation
  • Always a tap away, on every screen
Screenshot · Coach
The Coach chat answering “why am I sore on push days?” with your data.
1080 × 2340 · PNG

Evidence, not hype

Programming you can actually trust.

Most apps hand you a fixed program and hope. n1 treats your training like a single-subject experiment — a sample size of one — and tunes the next session to the evidence you just produced.

0–200
The N1-Score grades every exercise for quality and stimulus-to-fatigue — you train the best movements, not the most.
RCT
Volume landmarks, periodization, and strength standards drawn from published research — Helms, Israetel, Aragon.
Offline
Log every set in two taps, even with no signal in the gym. It syncs when you’re back online.
5
Fully localized — English, German, Spanish, French, and Portuguese.

How it works

A plan that learns you, then keeps learning.

Onboard

Answer a short, science-screened intake — goals, experience, equipment, body. n1 sets your starting plan and a real strength baseline in minutes.

Train

Each session is generated for you: the right movements, sets, and loads for your recovery and progress. Log sets in two taps, even offline.

Recalibrate

n1 reads every logged set, your readiness, and your recovery — then adjusts the next session. Your plan is never static.

From the first cohort

What lifters say.

Drop in real reviews as they come. Each card is a slot — quote, name, and photo.

“ A real testimonial goes here — one or two sentences on how n1 changed their training. ”
Reviewer name
Role / handle · photo 200×200
“ A real testimonial goes here — one or two sentences on how n1 changed their training. ”
Reviewer name
Role / handle · photo 200×200
“ A real testimonial goes here — one or two sentences on how n1 changed their training. ”
Reviewer name
Role / handle · photo 200×200

Questions

The short answers.

Is it really free?

Yes. n1 is free to use — every feature, including the AI coach. No credit card, no paywall, no trial that expires.

Do I need to install anything?

No. n1 runs in your browser today at app.iamn1.app — sign up and train in minutes. Native iOS and Android apps are on the way.

Do I need a wearable?

No. n1 works entirely from what you log. Connect Apple Health or Health Connect and it gets sharper — sleep and recovery feed your daily readiness — but it is completely optional.

Is my health data private?

Yes. Your health data is never sold and never used for advertising. It is stored encrypted, isolated to your account, and you can export or delete everything at any time.

Who is n1 for?

Lifters who want a real plan that adapts — from first barbell to advanced. Built men-first, it works for anyone training seriously for strength and physique.

Start today

Your first session is already waiting.

n1 is free. Open it in your browser and train in the next five minutes — your plan builds itself.

Start training — free Log in