MarathonOS

Train. Plan. Race. Remember.

Only for iPhone

Free · In‑App Purchases · Designed for iPhone

iPhone

Spring marathon season is here. Get race-ready with logistics tracking, proven training plans, and smart checklists. Your race day command center awaits. YOUR RACE DAY COMMAND CENTER You've done the training. You've logged the miles. Now don't let race day logistics derail months of preparation. MarathonOS is the only app built for the full marathon experience — from registration to finish line to reflection. RACE DAY LOGISTICS Flights, hotels, parking, bib pickup, start line directions — everything in one place. No more digging through emails the night before. SMART CHECKLISTS Gear, nutrition, travel, mental prep. Customizable lists with due dates so nothing gets left behind. Never forget your race belt again. PROVEN TRAINING PLANS Hansons and Pfitzinger methods built in. No AI guesswork — real plans that real marathoners use. Link plans directly to your race. YOUR MARATHON MEMORY Pre-race notes. Post-race reflections. Mile splits. What worked, what didn't. Build your personal marathon knowledge base across years of racing. CONNECT YOUR WEARABLES Strava, Garmin, and Apple Health. Auto-import your runs into one unified dashboard. Built by marathoners, for marathoners. Free to start. Premium unlocks advanced plans, full logistics, and unlimited checklists for $5.99/month or $39.99/year. Terms of Use: https://www.42cal.com/terms

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The developer, Esteban De la Vega, 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
    • Purchases
    • Contact Info
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

  • Seller
    • Esteban De la Vega
  • Size
    • 31.4 MB
  • Category
    • Health & Fitness
  • Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    • English
  • Age Rating
    4+
  • In-App Purchases
    Yes
    • Race Block Pass $24.99
    • Premium Annual $39.99
    • Premium Monthly $5.99
    • Learn More
  • Copyright
    • © 2026 Esteban de la Vega
  • Developer Website
  • Privacy Policy

    • More by Esteban De la Vega