Muscle fatigue map
Exercises map to muscles and fatigue zones, so weekly workload is easier to understand than a flat workout list.
TYR
Your health, ready for AI.
TYR gives AI a longitudinal understanding of your fitness life, so it can investigate what changes, what holds steady and what actually appears to work for you.
It brings together workouts, nutrition, sleep, activity, recovery, bodyweight, goals and interventions—not as another disconnected dashboard, but as structured context an AI can reason across.
No account is required for normal local use. No ads. No clutter.
Connected questions, not isolated scores
The questions TYR is built to help investigate
- What changed when I changed my nutrition?
- What appears to be keeping me from making progress?
- Is this supplement associated with any measurable change—and is it worth continuing?
- Are my sleep and recovery keeping up with my training?
- Is my program moving me toward the goal I actually set?
- Which conclusion is strongly supported, and which one needs more data?
Most fitness apps show one part of the picture. TYR is built to preserve the connections between them: what you changed, what happened next, how that compares with your own baseline and how complete the evidence is.
TYR preserves patterns as evidence for a hypothesis or test—not proof of causation. Personal baselines make changes legible, and missing data remains unknown rather than being converted to zero.
Download TYR
Start with structured tracking, then export useful context when you want help reasoning about your health and training.
Download on the App Store Android Beta — join the waitlist
Coming soon on Google Play. TYR is free to download. Optional AI-powered food logging is planned for a future paid tier; pricing has not been announced.
The blank chat box is the problem.
Most consumer AI starts with an empty screen asking what you want. For power users, that is freedom. For most people, it is another task.
You can ask any AI how to lose weight or gain muscle and get a reasonable answer. The missing piece is context: your workouts, meals, sleep, steps, heart rate, HRV, weight trend, baselines, goals, and constraints.
TYR removes the blank slate by turning your health data into organized context before the AI ever answers.
The inputs TYR tracks
These are the raw materials. TYR keeps them structured so they can become useful analysis instead of scattered dashboard fragments.
- Strength training
- Cardio
- Nutrition
- Sleep
- Steps and activity
- Bodyweight
- HR / HRV
- Goals
- Injuries and status notes
- Supplements and interventions
What makes TYR different
AI-ready report
TYR exports structured context an assistant can read without guessing from screenshots or disconnected apps.
Intervention log
Track changes like supplements, routines, sleep experiments, or training blocks against your own baselines.
Learn how TYR works
Understand what and how we track.
TYR is meant to be understandable. Read how the muscle map works, how analysis metrics are calculated, and what goes into the AI report.
Free routine tool
Routines at a glance.
Build a routine from TYR's exercise library, start with a built-in program, and inspect its mapped muscle emphasis. Advanced comparison is available when you want it.
Muscles in TYR
See where your training is going.
TYR maps exercises to muscles and fatigue zones so your training history becomes easier to understand. It helps turn a workout log into practical context: what you trained, what may still be fresh, and where weekly workload is building up.
The map is intentionally practical. It is not a medical anatomy tool. It is a way to understand balance, recovery, and movement patterns without needing another bloated dashboard.
AI Health Context Report
TYR can generate a 90-day structured report designed to be readable by ChatGPT, Claude, or another AI assistant.
The goal is not another vague score. The goal is useful context: enough structure for an assistant to reason about training load, nutrition, sleep, recovery, goals, and constraints without guessing from screenshots.
"Your HRV has been 14% below your 90-day baseline for 6 days. Training load increased 22% last week. That combination may point to recovery lag, especially if sleep or soreness also changed."
Two user-controlled paths
Use TYR with AI today—or connect directly after approval.
Generate a structured report today
Build and copy a 90-day report containing recent detail, personal baselines, coverage, goals, constraints, and interpretation rules. You choose whether to share it with an AI.
Connect TYR to ChatGPT after directory approval
TYR has been submitted for review and is not yet publicly listed in ChatGPT. Once approved, a user-authorized connection can expose six scoped, read-only tools.
Four ideas behind TYR
Why TYR. The Blank Chat Box Problem. When Understanding Gets Cheaper. Personal Context Creates Personal Solutions. AI for Humans.
TYR is built around the belief that personal context is what makes AI useful for real people.
Privacy-first
TYR is ad free and not tracking or selling your information. Your data, simplified and in your control.
- No ads.
- No credit card sign up.
- No location tracking.
The philosophy is simple: keep the core useful, avoid ads, logging is not the value, the user actually achieving their goals is real value.