PaceFlip

Run/Walk Interval Timer

Free · In-App Purchases

PaceFlip: The Ultimate Run/Walk Interval Timer Whether you are training for your next marathon, conquering Couch to 5K, smashing HIIT intervals, or starting your fitness journey, your focus should be on the run—not doing math on your watch or phone. PaceFlip is a beautifully simple, highly focused interval timer built specifically for Apple Watch and iPhone. Stop calculating interval times in your head or staring at your wrist. PaceFlip gives you complete confidence in your timing so you can just run. Key Features: • Preset Workout Templates & Custom Routines: Jump straight into popular interval routines like Couch to 5K, HIIT Sprint 30/30, and Tabata 20/10, or easily build, save, and sync your own custom workout presets. • iPhone & Apple Watch Companion Experience: Use PaceFlip on whichever device suits your workout best! Configure and run workouts standalone on your Apple Watch, track on your iPhone, or sync seamlessly between both with one tap. • Active Workout Cards (Telemetry Graphs, Baseline Compare & Next Flip): Customize your top dashboard widget during active workouts to view live metrics that matter most to you: • Live Telemetry Graphs: Visually monitor your live heart rate (BPM) and real-time workout intensity trends. • Workout Baseline Comparisons: Compare your current run’s distance and elapsed duration directly against your last completed workout. • Next Flip Preview & Milestones: See exact countdowns to your upcoming phase transition (e.g., "NEXT: WALK in 00:30") along with trainer milestone cues. • Virtual Trainer, Voice Encouragements & Milestones: Enjoy intelligent audio guidance that ducks background music (Spotify, Apple Music, podcasts): • Phase Cues: Clear voice prompts ("Run!", "Walk!", "Warm Up", "Cool Down"). • Pre-Transition Countdowns: Hear your trainer count you in ("3, 2, 1...") before every pace flip. • Milestone Alerts: Audio callouts for halfway through your workout, halfway through an interval, 1 minute remaining, and final cycle! • Motivational Encouragements: Non-repeating motivational callouts at key workout milestones to keep you energized. • Live Distance & Workout History Logs: Track live distance in Miles or Kilometers. Review your completed workouts with detailed history logs synced across both iPhone and Apple Watch. • Custom Fitness Activity Types: Log workouts your way! Categorize your workouts under Outdoor Run, Indoor Treadmill Run, Outdoor Walk, Indoor Walk, or HIIT so your sessions save accurately to Apple Health and Apple Fitness. • Stunning Circular Interface: Visualize your workout at a glance with a progressive dual-ring interface tracking current interval and total workout progress on both iPhone and Apple Watch glass. • Eyes-Free Haptic Taps: Never break your stride. Distinct haptic vibrations prompt you exactly when it's time to switch between running and walking. • Customizable Stepper Precision: Adjust interval durations in flexible 15-second, 30-second, or 1-minute steps on both devices. • Clean, Unified Health Data: PaceFlip logs your interval workout as one continuous, elegant session in Apple Health & Fitness—preserving your overall pace metrics without cluttering your history with hundreds of micro-segments. • Marathon-Ready Reliability: Engineered for the long haul. Whether doing a quick 10-cycle jog or a 4-hour marathon run, PaceFlip runs smoothly in the background and saves instantly. • 100% Standalone Watch Support: Leave your phone at home or use it on a treadmill stand. Flip your pace, trust your timer, and close your rings with PaceFlip!

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

Squished a bug in our paywall, that prevented you from purchasing our app after the trial expired.

Version 2.0

The developer, John Lein, 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

    Accessibility

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

    Information

    Seller
    John Lein
    Size
    16.8 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Apple Watch
      Requires watchOS 10.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2000 - 2026 Lein Design Inc.
  • Developer Website
  • Privacy Policy

    • More by John Lein

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