For coaches

I spent 25 years coaching Olympic and pro athletes. I built the app I always wanted.

Over 1,000 clients coached. Every piece of feedback — what kept clients engaged, what made them quit, what actually grew my business — went into J90. Now it's yours.

First 23 coaches lock in Pro for $49/mo — for life + free updates for life

No credit card required. 14 days of full access, then pick a plan. No contracts.

43-second app tour

See how J90 runs your coaching day

Clients, AI programming, nutrition, exercise videos, feedback, messaging, and scheduling — all in one system.

Silent walkthrough with on-screen captions.

25+

Years coaching Olympic & professional athletes

1,000+

Clients coached — their feedback built this app

90

Days at a time — the system that gets results

Dr J, founder of J90

Why I built this

I've coached at the highest level — Olympic training centers, pro locker rooms — and I've run a coaching business the hard way: spreadsheets, text threads, lost check-ins, clients drifting between sessions. The big platforms didn't fix it. They were built by software companies, not coaches.

So I built J90 around what actually keeps clients engaged and what actually grows a coaching business. Small habits. Big life. 90 days at a time.

— Dr J

Clients don't quit apps that feel alive

The #1 reason coaching clients churn is silence between sessions. J90 keeps them showing up every single day — without you lifting a finger.

Daily Health IQ quiz

A 30-second quiz every morning builds streaks, teaches your clients something, and keeps your app the first thing they open.

Daily recaps & weekly summaries

Every evening clients get a recap of their day. Every Friday you get a summary of each client — who crushed it, who's slipping.

Real messaging that feels personal

Text, photos, and video right in the app. Read receipts, push notifications, and your face and brand on everything they see.

Progress photos & check-ins

Scheduled check-ins, side-by-side photo comparisons, weight and measurement tracking — proof of progress that retains clients.

AI that coaches the way you do

The hours you hate, done for you

Not a chatbot bolted onto a spreadsheet. Every AI tool in J90 does a job a coach actually does — and you approve everything before a client ever sees it.

A full program from one intake

Your new client fills out the intake — equipment, injuries, days per week, goals — and a complete draft program is waiting for you. Edit anything, then release it to their calendar in one tap.

An AI you, answering 24/7

Clients tap your face and get form fixes, swaps, and nutrition answers in your voice, under your name — at 10pm when you're off the clock.

Goal preview photos

Take their current progress photo, add a goal like 'lose 10 pounds,' and show them an honest picture of where the work leads — with a realistic timeline. Nothing sells a 90-day commitment faster.

Food logging clients actually do

Snap the plate, say it out loud, or scan the barcode. Calories, protein, carbs, and fat land in their day automatically — no searching a database.

Read any program or photo

Drop in a client's old program or their progress photos and get a coach-level breakdown of what's missing, what's imbalanced, and what to fix first.

Content for your business

Turn your coaching into posts and captions in your own voice, ready to publish — so marketing stops being the thing you never get to.

The things other coaching apps don't do

Readiness that changes the workout

A 20-second morning check on sleep, soreness, and energy — and today's session tells them to push or pull back. You get pinged the moment someone lands in the red.

Your demos, in your voice

1,300+ exercises with animated demos, plus your own clips filmed on your phone. Clients tap play inside the workout and see you show it, not a stranger.

Your own team leaderboard

Your clients compete with each other — streaks, workouts, habits, and food logging roll into one score. First names hidden, bragging rights very much not.

A dashboard that flags trouble

One screen every morning: who checked in, who trained, who logged food, and an at-risk list of the clients quietly drifting before they cancel.

Everything you need to coach, in one place

Programs built in minutes

A full exercise library, reusable templates, and a builder that lets you drag a 12-week block onto a client's calendar — then tweak every set, rep, and tempo yourself.

Nutrition without the nagging

Targets calculated from their intake, plus different plans for training days, rest days, and refeeds. Water goals, weekly reports, and comments right on their food log.

Scheduling that books itself

Your booking link, your availability, automatic notifications — and it drops straight onto Apple Calendar or Google Calendar.

Your brand, not ours

Your name, your logo, your colors, your headshot. Clients see 'Ask Coach You' — J90 disappears behind your business.

Check-ins on autopilot

Build your own check-in form, set the day it goes out, and get an alert the second it's answered — with side-by-side progress photos to prove the work.

Clients who pause, not disappear

Deactivate a client and they leave your active roster but stay on file with their whole history — so you can win them back later instead of starting over.

New revenue streams

Get paid for more than sessions

Build supplement protocols right inside a client's program, sell programs and challenges to people who aren't on your roster, and see it all — plus any cash you take in person — added up on one revenue card.

Supplement protocols

Tell each client exactly what to take and when, and add the revenue stream most coaches leave on the table.

Sell programs

Put a program in your storefront and let people buy it without ever becoming a full-time client.

One revenue view

Program sales, cash payments, and in-person training in one monthly total, broken down by category.

Pick your plan when you're ready

Every coach starts with 14 days of full access — no credit card. Choose a plan when the trial ends. Cancel anytime.

First 23 coaches lock in Pro for $49/mo — for life + free updates for life (23 spots left)

Coach Starter

For coaches building their first roster.

$49/mo

  • Up to 15 active clients
  • Programs, habits, and nutrition tracking
  • Messaging, check-ins, and progress photos
  • Client activity feed
Start free — no credit card
Most popular

Coach Pro

For full-time coaches running a busy practice.

$49/mo founders$99

  • Everything in Starter
  • Up to 50 active clients
  • Social Studio — AI posts, ads, and scripts
  • AI program analysis and daily recaps
  • Priority support
Start free — no credit card

Coach Team

For coaching teams and studios.

$199/mo

  • Everything in Pro
  • Unlimited active clients
  • Assistant coaches on your account
  • Your own branding across the app
  • Priority support
Start free — no credit card

Questions about which plan fits? Talk to Jay.

Honest look: J90 vs Trainerize

Trainerize runs the business side well and has been around far longer. J90 does the coaching better. Here's where each one lands — including where they're still ahead of us.

FeatureJ90Trainerize
Full program written from a client's intake

Equipment, injuries, days per week — a complete draft you edit and release.

Nutrition with macros per day type and real meals

Training days, rest days, refeeds, measured portions, swaps, grocery lists.

Readiness check-in that changes today's training
Form check videos with coach feedback
Group messaging with multiple named groups
Broadcast into every private thread
Your own coach videos inside the workout
Your brand — name, logo, colors, headshot

Trainerize puts white-label on higher tiers; J90 includes your brand.

Client-facing store for programs and packages

J90 sells programs today; a full per-coach store is on our roadmap.

Wearable and third-party integrations

Trainerize is ahead here — more connected apps and devices.

Multi-location / franchise accounts
Free trial without a credit card

Based on publicly listed features as of September 2026. Trainerize is a trademark of its owner; J90 isn't affiliated with them.

Where J90 wins

  • A full program drafted from the client's own intake — minutes, not an evening.
  • Nutrition a coach actually controls: macros by day type, real meals, grocery lists.
  • Morning readiness that pushes or pulls back the day's session automatically.
  • Form check videos, group messaging, and your brand on everything — included, not upsold.

What's on our roadmap

  • A full storefront for each coach — packages, clinics, and add-ons.
  • More wearable and app connections.
  • Organization accounts for gyms and multi-coach teams.
  • Richer progress reports and exports.

On our roadmap means planned, not promised — no dates attached.

Read the full comparison

You won't set this up alone

Every new coach gets a free 1-on-1 onboarding call with me. I'll walk you through the app, help you load your first clients, and share what's worked for the coaches already on J90.

Dr J

Coach like the pros. Run it like a business.

14 days free with no credit card. Then Starter gives you up to 15 clients — or grab the founders deal, Pro for $49/mo while spots last.

"Small habits. Big life. Let's get to work." — Dr J