The Claude personal trainer,
productionized.
You don't need a 2,000-word system prompt, a .txt lift log, and three Project files. We spent two years building the native version. Auto-logged lifts. Wearables in. A multi-agent coach that actually remembers.
This is what 30 lines of system prompt can't do.
If you've tried building a Claude PT,
you already know the problems.
- →
Your lift log is a .txt file you have to remember to update.
- →
Claude forgets everything outside the current Project window.
- →
No wearable data. No calendar. No deload reminders.
- →
Six weeks in, the context overflows and your coach starts hallucinating.
We hit all of these. So we built the layer underneath.
Claude Projects PT vs. Trayne
Same goal. Two very different amounts of work.
Logging your lifts
Claude Projects PT
Manual .txt edits
Trayne
Auto-logged in Active Workout
Memory across weeks
Claude Projects PT
Resets / overflows
Trayne
Persistent athlete understanding doc
Wearables (Garmin, Apple Health, Oura)
Claude Projects PT
None
Trayne
Native ingestion + recovery-aware adjustments
Calendar & scheduling
Claude Projects PT
"What's today?"
Trayne
Timezone-aware, session-first
Deloads
Claude Projects PT
You have to remember
Trayne
Automated weekly planner
Plan editing
Claude Projects PT
Re-prompting
Trayne
Multi-agent editor with preview-first patches
Methodology
Claude Projects PT
Whatever you paste
Trayne
Researched per-athlete by an onboarding strategist
Cost of your time
Claude Projects PT
Free, but you do all the work
Trayne
Paid, and Trayne does the work
Built on Claude. Wired to your body.
The architecture you'd build if you had two years and a team.
Multi-agent coach
A strategist agent designs your methodology during onboarding. Specialist executors handle weekly generation, plan edits, session swaps, and recovery analysis — each scoped to one job.
Memory that compounds
A living athlete-understanding document updated daily from your workouts, chats, and wearables. Every agent reads it before making a single decision. No context overflow. No re-explaining yourself.
Wearables-aware
Recovery scores from Garmin, Apple Health, and Oura flow into the weekly planner automatically. A bad night's sleep moves tomorrow's high-intensity session — without you opening the app.
30 seconds vs. 30 minutes
Same outcome. One of these is 60x faster and never forgets.
~30:00
Paste system prompt → exercise library → lift log → ask for next session
In Claude
Manual every single time.
0:30
Open app → tap Start Workout → log a set → next session is already there
In Trayne
Auto-logged. Auto-adapted. Auto-remembered.
What people are saying
"It's the version of my Claude Project I always wanted to build but never had time for. The fact that it just logs my lifts is worth it alone."
— Beta user
"Recovery from WHOOP actually changes my plan. I stopped overriding it because the app is right more often than I am."
— Hybrid athlete
"The memory is the killer feature. I told it about a tweaked knee in week one and it's still substituting exercises six weeks later."
— Lifter
For prompt engineers
Your prompts. Just not in a chat window.
We're shipping a Trayne MCP server so you can plug your training data directly into Claude Desktop, Cursor, and Claude Code — query your athlete understanding doc, pull last week's sessions, or have Claude propose plan edits that flow back into the app.
Claude Desktop
Query your training data
Cursor
Build on top of your plan
Claude Code
Programmatic plan edits
Available soon. Drop your email and we'll send you the connection details the day it ships.
Frequently asked
Stop prompting your coach.
Start training with it.
Trayne is on iPhone today. Free trial included.