Start free in your browser  |  New accounts include 7 days of Premium  |  No card required

Your AI Personal Trainer

YOUR TRAINER.
YOUR RULES.
YOUR RESULTS.

An AI trainer that helps you plan workouts, log food, and stay consistent, with coaching shaped around your goals, schedule, and preferences.

Works in your browser on phone and desktop. New accounts include 7 days of Premium access. No card required.

Jax AI trainer Tom AI trainer Sky AI trainer Cole AI trainer
Four trainer personalities. Pick the one that motivates you.
NX chat: the trainer reminds you of tonight's workout, estimates a burrito bowl at about 720 calories, and logs it when you reply LOG
NX Exercise tab: a weekly plan with three scheduled workouts of about 30 minutes
What NX Does

A TRAINER
THAT TALKS BACK

Coaching chat that logs for you

Tell your trainer what you ate. It estimates the calories and protein, and logs it when you reply LOG. Log workouts in plain words too.

Plans that fit your life

Weekly workouts built for your level, schedule, and equipment that progress as you do, plus meal plans built around your calorie target and tastes.

Accountability that sticks

Your trainer remembers your goals and checks in. Add optional texts, streaks, ranks, and friends to keep the habit going.

Free Plan and Premium

START FREE.
GO PREMIUM WHEN YOU'RE READY.

Every new account includes 7 days of Premium access. No card required, and nothing is charged unless you choose to subscribe.

Free Plan
$0
Coach + Log

Your trainer and everything you need to track your day.

  • Chat with your trainer
  • Log food by text or photo, plus water
  • Log any workout in plain words
  • Optional texts from your trainer
  • Streaks, ranks, challenges, and friends
Start Free

Billing starts only when you subscribe. Prices in USD.

Pick Your Coaching Energy

FOUR PERSONALITIES.
ONE MISSION.

Choose the style that matches your energy. You can switch trainers anytime.

Jax - Tough Love Drill Sergeant
Tough Love
Jax

No excuses, no shortcuts. Jax pushes you with discipline, directness, and the kind of honesty that makes skipping feel impossible.

Tom - Funny Fitness Coach
Funny Guy
Tom

Fitness should be fun. Tom keeps you laughing while nudging you through the plan with humor and good vibes.

Sky - Inspirational Motivator
Motivator
Sky

Every step matters. Sky lifts you up with belief, perspective, and a steady voice when the hard days start talking louder.

Cole - Data-Driven Scientist
Data Driven
Cole

Evidence over opinion. Cole focuses on your workouts, calories, macros, and recovery with precise, analytical coaching.

How It Works

THREE STEPS
TO YOUR FIRST WORKOUT

01
Pick your trainer

Choose Jax, Tom, Sky, or Cole and create your account in your browser.

02
Initial Assessment & Goals

Share your goal, schedule, equipment, food preferences, and any injuries or conditions.

03
Train and check in

Follow your plan, log food and workouts in conversation, and come back to a trainer who remembers.

Safety and Privacy

BUILT AROUND
YOUR LIMITS

NX is general wellness coaching, not medical advice. These safeguards are built in.

Injury-aware plans

Workout plans leave out exercises that conflict with the injuries and conditions you tell us about.

Allergy checks

Meal plans check the allergies you list, and flag or hold back anything that can't be checked.

Memory you control

See what your trainer remembers about you and delete anything you want.

Your data, your call

Download your data or delete your account from Settings. We don't sell your personal information.

Common Questions

QUESTIONS
ANSWERED

Quick answers about plans, pricing, texting, and safety.

Start Free

No. NX runs in your web browser on iPhone, Android, and desktop. Open it, pick your trainer, and you can add it to your home screen for one-tap access.

Chatting with your trainer, logging food (by text or photo), water, and workouts, optional texts from your trainer, and streaks, ranks, challenges, and friends. Premium adds weekly workout and meal plans, Daily Moves, recipes, and Make-a-Meal.

Every new account includes 7 days of Premium access. No card is required, and nothing is charged unless you choose to subscribe. Billing starts when you subscribe. If you don't, you keep the Free plan.

Premium is $19/month, or $199/year billed annually. You can cancel anytime from Settings, where you manage your subscription.

Yes, if you opt in with a U.S. mobile number. You get up to one check-in a day, plus replies when you text your trainer. Reply STOP anytime. See Text Messages for details.

Tell your trainer during setup or anytime after. Workout plans leave out exercises that conflict with the injuries and conditions you share, and meal plans check the allergies you list. NX is general wellness coaching, not medical advice, so check with a professional about anything medical.

The things you tell it that help it coach you, like your goals, schedule, food preferences, and injuries. You can see everything it remembers and delete any of it from your profile.

NX is available to adults 18 and older in the United States.
More in NX

MORE WAYS
TO STAY ON TRACK

Photo and text food logging

Snap a photo or describe a meal. Your trainer estimates the calories and gives it a health rating.

Workouts that progress Premium

Plans move you forward with more reps, then sets, then harder variations, with lighter recovery weeks. Every exercise has a demo video and a swap button.

Recipes from USDA data Premium

A recipe library with nutrition calculated from USDA ingredient data, plus cook mode and grocery lists.

Make-a-Meal and menu scan Premium

Build a meal from ingredients you have, or snap a restaurant menu and get order suggestions that fit your plan.

Streaks, ranks, and missions

Protect your streaks with a weekly Recovery Shield, climb 10 ranks, and take on daily missions and monthly challenges.

Friends and leaderboards

Add friends, race them on the weekly leaderboard, and see where you rank globally.