PT Lab gives you the brain of a private trainer — programming, feedback, progress analysis — without the price tag. You log, the AI reads what you did, and the next session adapts.
Most fitness apps generate one plan and forget you exist. PT Lab is built around a feedback loop where every workout becomes context for the next one.
Tell it your goals, equipment, restrictions. AI builds a routine or full multi-week program in seconds.
Per-set tracking with last-time references. Rate difficulty so the AI knows how it actually went.
Workout logs, check-ins, and your ratings become context for the next session. Not a generic template.
Auto-detected personal records. Lift stats per exercise. Visible progress that compounds.
One click. The AI reads your full training profile — every set, every check-in, every PR — and gives you a real analysis. What's progressing, what's stalling, what to do about it. The thing a private coach charges $200/month for.
This is the part most apps skip. A workout logger tells you what you did. A program app tells you what to do. PT Lab is the only thing that reads your data and tells you what it means — like a coach reviewing your logs on Sunday night, except it takes 5 seconds and you can ask whenever you want.
If you write your own programs, you know the drill: hours of YouTube, Reddit, and ExRx every cycle.
DIY spreadsheet
~3 hrs
to plan a 4-week block from scratch
With PT Lab
~5 min
AI generates → you tweak → start training
Hiring a coach
$200+
per month · vs. PT Lab's free + low-cost tiers
All features included at every paid level. No add-ons. No paywalls.
Personalized workouts in seconds based on your goals and equipment.
Plan up to 26 weeks of progressive training with proper periodization.
Track every set, every rep, every weight. See last time for each lift.
Coach-quality analysis of your training profile, anytime.
Soreness, mood, sleep — the AI factors them into the next session.
Auto-detected PRs across every exercise. See your trajectory.
Per-exercise charts. Watch your squat, bench, and pull move over time.
Set your own goals. AI checks progress and flags what to adjust.
Hand-curated exercises with form cues, progressions, and filters.
Mark what you love. AI prefers them when building your routines.
No app to download. Open your browser, log your set, done.
Export anytime. We don't sell it or train AI on it.
ChatGPT gives you text. PT Lab gives you a structured workout you can log sets against in real time. Your full history is in context every session — ChatGPT starts from zero every conversation.
Most apps give everyone the same templates. PT Lab generates unique routines for your body, goals, equipment, and training history — and adapts as you log.
A private trainer costs $50–300/month. PT Lab is free at the entry tier. You won't get hands-on form correction, but you'll get programming and feedback as good as most in-person coaches actually deliver.
No more Googling exercises and building your own sheet. AI handles exercise selection, volume, and progression. You just show up and train.
Free tier with AI generations every month. Every feature unlocked. Upgrade only when you want more.