Mithrion: Your Body's Protocol
Precision AI Fitness Coaching
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Most fitness apps don't know your body.
They know your age and weight. They hand you a plan designed for a
statistical average, then act surprised when you stop using it after
three weeks. The problem was never your discipline. It was the app's
blindness to your physiology.
Mithrion is a physiological intelligence system. Upload two posture
photos, and it does what no text box can: it reads your actual
skeletal structure, muscular symmetry, and movement patterns.
Then it builds a precision training plan, nutritional guidance, and
functional drills around your specific body.
Not a template. A protocol.
HOW IT WORKS
1. Upload two photos, front and side, standing naturally.
No special equipment or setup required.
2. Mithrion runs a full Physiological Audit and scores your body
across three dimensions:
Posture Score: how your body positions and carries itself
Muscle Balance Score: muscular symmetry across your whole structure
Body Composition Score: structural composition estimate
Together, these form your Composite Body Score, the single
number that tracks your physiological progress over time.
3. Your AI coach delivers your first protocol: a training plan,
nutritional guidance, and functional drills, all calibrated
to what the audit found in your body.
4. From that point, Mithrion is with you in every session. Your coach
tracks what you do, observes what is working, and evolves your
protocol continuously. This is not a plan delivered once. It is a
live system that adapts as your physiology changes.
WHAT THE DATA SAYS
Mithrion was validated with 120 participants. Results measured via
the Composite Body Score:
2x improvement vs. an elite coaching baseline at 4 weeks.
8x improvement at 6 months, driven by compounding structural gains.
Full methodology: mithrion.fit/methodology
WHO THIS IS BUILT FOR
Desk workers who apply precision thinking at work and are done
accepting generic fitness tools. Engineers, founders, analysts, and
professionals who want the same evidence-based rigour applied to
their physiology.
If you have tried using AI for fitness advice and hit a wall, you
already understand the problem. A language model cannot see your
skeleton. Mithrion can.
If you have paid for Freeletics, Nike Training, or a coach and
stopped, the issue was not your commitment. It was that every plan
you received was built for someone else's body.
EARLY ACCESS PRICING
Mithrion is currently in early access. Founding Members receive
lifetime-locked pricing at €49/year. The rate never reverts to
full price (€89.99/year or €10.99/month) as long as the
subscription remains active.
Join the waitlist: mithrion.fit/join
NOTES
Results depend on individual physiology, effort, and consistency
over time. The 2x and 8x improvement figures reference Composite
Body Score gains vs. published elite coaching benchmarks on a
matched group profile.
Full methodology: mithrion.fit/methodology
SUBSCRIPTION & LEGAL
Mithrion is available as an auto-renewable subscription:
Annual: €89.99/year (Founding Member rate: €49/year — locked for life)
Monthly: €10.99/month
Payment is charged to your Apple ID at confirmation of purchase.
Subscription renews automatically unless cancelled at least 24 hours
before the end of the current period. Manage or cancel anytime in
your Apple ID account settings.
Privacy Policy: https://mithrion.fit/privacy-policy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
We've rebuilt the app from the ground up for a cleaner, faster, more focused training experience.
What's new:
• A refreshed design across every screen — clearer typography, calmer layouts, and more room to focus on your training.
• Light mode is here. The app now follows your device's appearance automatically, or you can choose Light or Dark yourself in Settings.
• Redesigned workout sessions — a smoother flow through warm-up, working sets, rest, and cool-down, with clearer timers and set logging.
• A reworked body audit — your results, comparisons, and personalized plan are easier to read and act on.
• Refreshed mobility, program views, onboarding, and sign-in.
• Numerous performance, stability, and accessibility improvements.
The developer, Fittech B.V., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- FitTech B.V.
- Size
- 45.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- Mithrion Membership $12.99
- Mithrion Membership $99.99
- Copyright
- © 2026 FitTech