# PaceFlip — Run/Walk Interval Timer > Run/Walk Interval Timer (iPhone/iPad app by John Lein.) - Source: https://appshunter.io/ios/app/paceflip/id6821489074 (this page in markdown: same URL + `.md`) - Developer: [John Lein](https://appshunter.io/developer/504182228) - Category: Health & Fitness - Price: Free with in-app purchases (on sale, was $1.99) - Age rating: 4+ - Requires: iOS 17.0 · 16 MB - Languages: American English - Released: 2026-10-13 - Data updated: 2026-10-26 ## What is PaceFlip? 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! ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | PaceFlip Full Access | $1.99 | one-time | ## Is PaceFlip safe? Not enough ratings yet to assess PaceFlip. ## Is PaceFlip legit? PaceFlip appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for PaceFlip is 75 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 4 releases) ### 2.0 — 2026-10-26 Squished a bug in our paywall, that prevented you from purchasing our app after the trial expired. ### 1.6 — 2026-10-24 What’s New in Version 1.6 Workout Presets & Custom Routines • Built-In Preset Templates: Quick-start popular interval programs including Couch to 5K, HIIT Sprint 30/30, Tabata 20/10, and Default Run/Walk. • Custom Workout Creation: Build, rename, and save custom interval routines that seamlessly sync between your iPhone and Apple Watch. Logs & Distance Tracking • Syncing Workout Logs: View detailed workout history logs on both iPhone and Apple Watch, synced automatically. • Distance Tracking (Miles & KM): Track total distance in real time during workouts, with flexible switching between Miles (mi) and Kilometers (km). Audio Trainer, Encouragements & Milestones • Voice Encouragements: Your virtual trainer delivers random, non-repeating motivational callouts at key milestones to keep you energized. • Smart Milestone Announcements: Stay informed without looking at your watch with audio prompts for: • Halfway through full workout • Halfway through current interval • 1 minute remaining in total workout • Final cycle notification • Pre-Transition Countdowns: Hear clear countdowns ("3, 2, 1...") right before transitioning between run, walk, warm-up, and cool-down phases. Customizable Fitness & Stepper Controls • Custom Apple Fitness Activity Types: Choose exactly how workouts are saved to Apple Fitness & Apple Health (Outdoor Run, Indoor Treadmill Run, Outdoor Walk, Indoor Walk, or HIIT). • Adjustable Stepper Precision: Tailor stepper adjustments on Watch & iPhone with customizable step increments (15-second, 30-second, or 1-minute steps). Connectivity & App Settings • Enhanced Watch Syncing: Faster real-time status updates and reliable background preset syncing between iPhone and Apple Watch. • Display & Banner Controls: Keep your screen active during workouts and toggle display banners independently. • Explore More Apps: Quick access link in Settings to discover our full suite of fitness and productivity apps. ### 1.5 — 2026-10-17 What’s New in Version 1.5 Now on iPhone & Apple Watch! PaceFlip is now a full companion app for both your iPhone and Apple Watch! You can now start, manage, and track your interval workouts directly on your iPhone or on your wrist. Use whichever device suits your workout best. Seamless Preset & Data Syncing Effortlessly configure your interval presets (Warm Up, Run, Walk, Cycles, Cool Down) on your iPhone and sync them straight to your Apple Watch with a single tap. Smart Audio Ducking on iPhone Keep listening to Spotify or Apple Music while training! PaceFlip automatically ducks background audio when announcing interval transitions ("Run!", "Walk!"), ensuring you never miss a cue. Unified Apple Health Integration Workouts completed on either device automatically sync to Apple Health and Apple Fitness, keeping your active calories and workout history updated in one place. ### 1.0 — 2026-10-13 No release notes. ## More apps by John Lein - [Landscape Pro Estimator](https://appshunter.io/ios/app/landscape-pro-estimator/id521672875) - [Turf Pro Estimator](https://appshunter.io/ios/app/turf-pro-estimator/id524058585) - [Topsoil Pro Estimator](https://appshunter.io/ios/app/topsoil-pro-estimator/id524193734) - [Mulch Pro Estimator](https://appshunter.io/ios/app/mulch-pro-estimator/id524817999) - [Design Fee](https://appshunter.io/ios/app/design-fee/id527161043) - [My Fee](https://appshunter.io/ios/app/my-fee/id528927214) All apps by John Lein: https://appshunter.io/developer/504182228 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-26.*