AI-powered workout programming, client management, built-in billing, team training, and a branded mobile app — all from one platform built for coaches who want to scale.
Stop duct-taping five different apps together. Flynn OS replaces them all with one unified system.
State-of-the-art drag-and-drop builder with supersets, circuits, RPE tracking, rest timers, and custom exercises. Design entire training blocks visually.
Create reusable multi-week programs, then assign them to individual clients or entire teams with one click. Write once, deploy everywhere.
Full client profiles with goals, injuries, daily notes, quick links, body composition tracking, and communication history — all in one place.
Create groups, assign team programs, manage rosters. Perfect for group coaching, boot camps, or sport teams. One program, unlimited athletes.
Infinite-scroll calendar showing every client's training day with real dates. Wearable data badges and nutrition overlays for the complete picture.
Stripe-powered subscriptions, one-time charges, payment links, and a revenue dashboard. Clients pay you directly — no chasing invoices.
Send professional branded emails to clients directly from the platform. No switching between apps — everything stays in one workflow.
Full two-way integration with Google Calendar. Booking, scheduling, and session reminders that stay in sync across your entire workflow.
Your clients get a mobile app with your logo, your colors, and your name. Workouts, progress logging, messaging, and habit tracking — all under your brand.
Custom intake forms, check-in questionnaires, and assessments. Completed forms live with the client's profile so nothing gets lost.
Pull in sleep, HRV, steps, and recovery data from wearables. See it right on the client's calendar alongside their training — the full picture.
Compliance rates, workout completion, messaging activity, and progress trends. See who's crushing it and who needs attention — at a glance.
Full per-exercise history panel so you and clients can track progression over time. Every set, every rep, every PR — all searchable.
1,200+ pre-loaded exercise videos with auto-linking. Upload your own branded demos too. Clients always know exactly what to do.
Add coaches to your organization, assign clients to trainers, manage permissions. Everyone gets their own workspace, you see everything.
Your logo, your colors, your app icon on your client's phone. Flynn OS disappears completely — your brand takes center stage.
Work in your workout builder and CRM side by side. Split-screen mode lets you program while viewing client data — then merge back when done.
In-app chat with clients. Share videos, form checks, and updates without leaving the platform. No more scattered WhatsApp threads.
Flynn OS includes two AI systems that get smarter the more you use them. Forge AI handles workout programming. Flynn AI handles everything else. Both auto-inject client context so they always know who you're working with.
"Sarah's been stuck on bench at 115 for 3 weeks. Can you suggest a deload week and re-progression?"
Based on Sarah's history, I'd recommend a deload at 85% for Week 5, then wave-load back up using the rep scheme I've seen you prefer for upper body plateaus:
Your client notes are more than text. Highlight any phrase and instantly tag it as an injury, PR, goal, or event. Flynn OS auto-detects dates and action items too. Everything becomes searchable, trackable context that makes you a better coach.
Check-in went great today. Sarah mentioned her left shoulder has been bothering her after overhead pressing. Going to swap OHP for landmine press next block.
Big win this week — she hit a 225lb deadlift PR which is a 20lb jump from last month. Her consistency has been incredible.
She wants to compete in her first powerlifting meet in September. Need to start planning a 16-week peak cycle.
Next assessment scheduled for June 5th.
Drag-and-drop exercises, build supersets with a click, assign to clients or teams, and let AI suggest what comes next.
For coaches and trainers, online coaching software is a must. The days of spreadsheets, email, and YouTube videos are over.
No more switching between a workout app, a billing tool, a messaging platform, and a spreadsheet. Everything lives in one place.
Most AI tools give generic outputs. Forge AI learns your exact programming style and generates suggestions that feel like you wrote them.
Your clients never see "Flynn OS." They see your logo, your colors, your app. You built the business — you should own the brand.
No complicated setup. No migration headaches. Just sign up and start coaching.
Sign up, name your business, and choose your plan. Your 14-day free trial starts immediately.
Upload your logo, pick your colors, and customize your client-facing app. It's all you.
Invite clients by email, build workout programs, and assign them with one click.
Your dashboard lives in the cloud. Track progress, manage billing, and program from any device.
All plans include a 14-day free trial. No hidden fees. Cancel anytime.
Save ~17% with annual billing. All plans include Stripe payment processing.
Join the growing community of trainers who are simplifying their business.
"I was paying for TrueCoach, a separate invoicing app, and managing everything in spreadsheets. Flynn OS replaced all three. My clients love having their own branded app."
"The AI workout suggestions are insane. It actually learned how I program and now generates blocks that feel like I wrote them. Saves me hours every week."
"We run a gym with 6 trainers and this is the first platform that actually handles multi-trainer management well. Each coach has their own clients, but I can see everything."