Splits: Triathlon & Marathon

AI Run Coach: VO2 Max & Zone 2

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Free triathlon, marathon and 5K-to-ultra plans that adapt to your week, your HRV and your sleep. VO₂ max, zone 2, readiness and records. No account, no ads. Splits is a training coach and a complete health app. It reads what your iPhone and Apple Watch already record and tells you what to do today: for a 5K, a marathon, a triathlon, a gran fondo, an open-water swim, a hybrid fitness race such as HYROX, or simply to get fitter. A PLAN MADE FOR YOU Answer a few questions (sport, race, goal, how much you train now, the days you really have, anything that hurts) and Splits writes a plan for that sport: speed and tempo for a 10K, marathon-pace long runs, sweet-spot rides, CSS sets, station circuits and compromised running for hybrid races. It starts from what you actually trained, grows safely, moves a missed key session, eases off after a hard week or a bad night, and fits around your calendar and the weather. TELL YOUR COACH "I only have five hours this week", "no training on Mondays", "my knee hurts": say it in your own words and the plan shows the change before it makes it. EVERY MORNING, HOW YOU ARE Readiness compares your heart rate variability, resting heart rate, sleep and training load with your own normal. A tide-style curve shows the best hour today for easy or hard work. MEASURES APPLE HEALTH DOES NOT GIVE YOU Training load, aerobic decoupling, heart-rate recovery, critical power and speed, intensity split, durability, sleep regularity and more, each with its method explained. EVERY WORKOUT Splits, heart rate, efficiency and your route in 3D for runs, rides and walks from any app that writes to Health. Log your gym sets and weights in Splits, or import them from Strong, Hevy and other gym apps. RACE DAY Pacing, fuelling and a race clock on iPhone and Apple Watch. ALSO - Apple Watch app with zone guidance and haptic alerts - Widgets for the Home Screen, Lock Screen and watch face - iPhone, iPad, iPhone Duo and Mac, in sync through iCloud - No account, no ads. Your health data stays in Apple Health. SPLITS PRO Free: Summary, readiness, when to train, your plan and race day, every workout and every Health measure, widgets and the watch app. Splits Pro adds advanced metrics, the assistant, a season of races, calendar and weather planning, routes in 3D and the nutrition coach, as a monthly or yearly auto-renewing subscription (the yearly plan starts with a free week). Payment is charged to your Apple Account and renews unless turned off at least 24 hours before the end of the period; manage it in your Apple Account settings. Or pay once for Splits Pro Forever, yours for good. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://javi7899.github.io/splits-web/privacy.html Splits is not a medical device and does not diagnose. Talk to a doctor about anything that worries you.

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New: the Christmas challenge. From 20 December to 6 January, train 20 minutes on 12 of the 18 days, any sport, and see your whole year in review, ready to share.

The developer, Javier Torres Rubio, 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 Not Collected

    The developer does not collect any data from this app.

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

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • VoiceOver

      • Voice Control

      • Larger Text

      • Dark Interface

      • Reduced Motion

    Seller
    Javier Torres Rubio
    Size
    36.1 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    • Apple Watch
      Requires watchOS 10.0 or later.
    Languages
    English and 32 more
    • English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
    Age Rating
    9+
    In-App Purchases
    Yes
    • Splits Pro Forever $34.99
    • Splits Pro, monthly $3.99
    • Splits Pro, yearly $29.99
    Copyright
    © 2026 Javier Torres Rubio