Comparison

Mithrion vs Fasta

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mithrion

This app uses AI to analyze your body's structure and movement from photos, creating a personalized fitness and nutrition plan. It continuously adapts your protocol based on your progress and effort.

Highlights
  • AI-driven physiological analysis
  • Personalized training plans
  • Nutritional guidance
  • Functional drills
  • Continuous protocol adaptation
  • Posture, muscle balance, and body composition scoring
Features
Read full description

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/

About

Fasta

Features
Read full description

Fasta is a private intermittent fasting timer for a routine that fits your life. Choose a daily fasting window, track water and personalize Today. No account. No ads. Core fasting records stay on your device. DESIGNED FOR DUO Optimized compact and expanded layouts make room for your routine. Unfold for spacious dashboards, a redesigned Progress view and side navigation. Custom plans include 15-minute duration controls and support for larger text. YOUR TIMER, YOUR PACE Choose a daily preset or custom window. See elapsed time, keep water and optional weight logs, and look back at your saved history. Stage estimates describe elapsed time, not a measurement of your body. MAKE TODAY YOURS Choose a Simple, Balanced or Detailed layout. Pin your favorite cards, hide what you do not need or use weight-free mode. Pick a coach tone and check-in preferences. Name your companion plant and choose its pot and scene. Breaks do not reduce its health. A MOMENT TO PAUSE Choose free one-, three- or five-minute breathing or reflection, or try self-paced grounding. Adjust the breathing pace, pause whenever you need and choose an optional reminder. Mindful moments do not require a fast. YOUR NEXT WEEK Compare saved activity from two complete weeks, then explore a seven-day schedule around your days. The comparison and editable preview are free. Saving and using the schedule requires Premium, a safety review and your confirmation. A schedule never starts a fast automatically. SAVE YOUR SETUP Save, preview and share routine configurations for free. Shared links include only the routine name, schedule and appearance, not health records, profile or purchase data. Recipients review a preview before choosing whether to apply it. Applying a weekly schedule requires Premium and safety review. FREE TO START The timer, daily presets, free one-week schedule starters, static weekly templates, basic weekly recap, Time Capsule, Year in Review, hydration, optional weight, basic history and safety settings are free. So are Today personalization, companion preferences, mindful moments and an optional first week of prompts to explore Fasta at your own pace. Apple Health weight/water sync and Restore Purchases are available without an account. SMALL MOMENTS, RECOGNISED Trophies recognise mindful moments, check-ins, personal choices and saved routines. Choose animated, quiet or no celebrations, with optional haptics. Any days count; there is no streak to protect. FASTA PREMIUM Premium adds editable weekly fasting schedules, the private on-device coach, 30-day reports and CSV exports, premium themes and premium timer styles. Choosing a coach tone does not unlock Premium coach features. Local prices and subscription terms appear before purchase. Any trial depends on the selected store offer and your eligibility. APPLE WATCH, WIDGETS, AND HEALTH Stay oriented from your wrist, widgets, Lock Screen or Live Activity. Apple Health is optional. With permission, Fasta can read weight, water, sleep, HRV, resting heart rate, steps, active energy and blood glucose as logged context, and write water and weight entries you log in the app. Logged context is not a health or fasting-safety assessment. PRIVATE BY DESIGN Fasta uses local device storage. Your core fasting data stays on your device unless you choose to export or share it. You control optional health permissions. IMPORTANT Fasta is for general wellness and fasting habit support, not medical advice. If you are pregnant, under 18, have a medical condition, have a history of disordered eating, or are unsure whether fasting is appropriate for you, speak with a qualified health professional first. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ SHARE FEEDBACK Share feedback from Settings. Your email app opens your draft; you choose whether to send it.

Screenshots

Mithrion4 screens
Fasta4 screens

Verdict

The call

Mithrion and Fasta are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mithrion sells 6 in-app purchases, starting at $9.99 per month and Fasta sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Mithrion ships an update fortnightly, Fasta every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Mithrion versus Fasta: the parameters behind the verdict, then further details
ParameterMithrionFasta
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.1 — better16.4
Further details — not scored
Size45 MB87 MB
Age rating17+17+
DeveloperFittech B.V.OneCount Pty Ltd

In-app purchases

6 purchases

Mithrion

Subscriptions6
  • Mithrion Membership$9.991 Month
  • Mithrion Membership1 Month trial$12.991 Month
  • Mithrion Membership$12.991 Month
Show 3 more
  • Mithrion Membership$79.991 Year
  • Mithrion Membership1 Year trial$99.991 Year
  • Mithrion Membership$99.991 Year
2 purchases

Fasta

Subscriptions2
  • Fasta Premium14 Days trial$5.991 Month
  • Fasta Premium14 Days trial$39.991 Year

Questions

Is Mithrion free?
Mithrion is free to download, with in-app purchases available.
Is Fasta free?
Fasta is free to download, with in-app purchases available.
Do Mithrion or Fasta have ads?
Neither Mithrion nor Fasta shows ads.
Which is updated more often, Mithrion or Fasta?
Mithrion ships an update fortnightly, and Fasta every 3 weeks. Most recently, Mithrion was updated on November 5, 2026 and Fasta on October 31, 2026.

Other comparisons