CalcuRun

Plan your races with science

Free · Designed for iPad. Not verified for macOS.

CalcuRun 3.0 is here — a brand-new chronograph design, iCloud sync across your devices, and a redesigned iPad layout. Free, private, and ad-free. Tired of juggling apps, websites, and bookmarks to plan your race training? CalcuRun is an all-in-one solution — completely free, with no ads and no accounts. Newly redesigned in version 3.0 with a chronograph-inspired look and a dot-matrix display, CalcuRun helps you predict race times, plan splits, and dial in your workout paces. Features * Input a recent race or time trial and get accurate predictions across common race distances. * Use the "Other" race distance for non-standard events. * View splits for each race, in kilometers or miles. * Get workout paces based on your predictions. * Use the Calculator to plan an individual race — input a time or pace and calculate the other. * Sync your saved races and predictions across your iPhone and iPad with iCloud. * Redesigned iPad layout with a sidebar that takes advantage of the bigger screen. * Choose between the new dot-matrix display font or the system monospaced face. * Learn more about how the calculations are performed. Most importantly, your data is private. Calculations run entirely on your device. CalcuRun does not require an account, internet access, or any device permissions. iCloud sync is fully encrypted, and your data is never sent to a CalcuRun server. If you choose to follow any in-app links, only the URL is passed to your default browser.

  • This app has not received enough ratings or reviews to display an overview.

Welcome to CalcuRun 3.0 — the biggest update since launch. * All-new chronograph look with a dot-matrix display. * Your saved races and predictions now sync across devices via iCloud. * Redesigned iPad layout with a sidebar that puts the bigger screen to work. * New Display Font option in Settings if you'd rather use the system monospaced face. * More resilient progress chart and a smoother first-sync experience. * Tightened up race predictions and splits to handle edge cases more gracefully.

The developer, Joseph Iannazzone, 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 based, for example, on the features you use or your age. Learn More

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

    Provider
    • Joseph Iannazzone
    Size
    • 2.3 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    • iPad
      Requires iPadOS 18.6 or later.
    • Mac
      Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.6 or later.
    Languages
    • English
    Age Rating
    9+
    Copyright
    • © 2021 Joseph Iannazzone