Apex Run: HR Zone 2 & Pace

Training Load & Race Predictor

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

MAKE YOUR RUNNING DATA COUNT. The ultimate analysis tool for data-driven runners. Unlike apps that just track your next run, Apex Run instantly unlocks the value of your entire running history — synced with Apple Health, with professional-grade insights. INSTANT HISTORY & CORE METRICS • Zero Cold Start: The day you install, your whole running life is already here — lifetime stats, heatmaps, and progress trends, synced from Apple Health. • Best Efforts: Your all-time bests across every common distance, found and tracked automatically. • Comprehensive Metrics: Pace, Cadence, Stride Length, Power, VO2 Max, and Zone2 Pace. • Map Styles: Color-code your full-screen route by Heart Rate, Pace, or Elevation — Standard or Satellite. • Personal Achievements: Earn exclusive badges as you hit new distance goals. • Quick Navigation: Jump straight to any past workout with the calendar picker. ADVANCED ANALYTICS SUITE Elite-level metrics used by professional coaches and athletes: [ MORNING RECOVERY CHECK (NEW) ] Know whether to push or hold back before you lace up. Apex Run reads your overnight recovery signals from Apple Health and compares them against YOUR personal baseline — no black-box score, every number auditable. • Recovery State: A clear morning readout — Optimal, Recovered, Compromised, or Fatigued. • Personal Baselines: Track HRV, Sleeping Heart Rate, Sleep Duration, and Restorative Sleep against your own 30-day range, with drill-in trends. • Daily Training Guidance (Pro): A concrete intensity recommendation for today — from a key session to an easy Zone 2 run to full rest. (Requires an Apple Watch worn during sleep.) [ RACE PREDICTION & PLAYBACK ] • Shadow Runner (Pro): Race the fastest version of yourself on any route you've run before — see where you're gaining or losing ground. • Race Time Prediction (Pro): Personalized finish-time estimates for your next 5K, 10K, Half, or Full Marathon. • Route Playback (Pro): Animated, step-by-step route playback on the map. [ PERFORMANCE & TECHNIQUE ] • GAP (Grade Adjusted Pace) (Pro): See your flat-ground equivalent effort on every hill. • Running Efficiency & Consistency (Pro): Track energy economy and rhythm stability over time. • Form Mechanics (Pro): Monitor Vertical Ratio and Duty Factor to run more economically. • Pace Zones (Pro): Personalized training zones (E/M/T/I/R). • Custom HR Zones: Build from Max HR %, Karvonen (Heart Rate Reserve), or Lactate Threshold (LTHR), then fine-tune every boundary in BPM. • Cadence Metronome: Lock in your rhythm — with Dynamic Island and Lock Screen Live Activities. [ SCIENTIFIC TRAINING LOAD ] • Training Status (ACWR) (Pro): Monitor your Acute:Chronic Workload Ratio. • Intensity Structure (Pro): Visualize your heart rate zone distribution. [ GEAR & DATA MANAGEMENT ] • Shoe Tracker: Track mileage on every shoe. • Workout Converter: Convert Walking/Hiking records into Running activities from the Toolbox. • FIT File Support (Pro): Import and export .fit files. • Monthly Reports: A beautiful recap of everything you achieved this month. [ EXPERIENCE, WIDGETS & PRIVACY ] • Local-First: Your data never leaves your device — no account required, all analysis on-device. • Advanced Widgets: "Latest Run", "Weekly Summary", and "Cadence Metronome" — one glance from the Home Screen. Download Apex Run today and gain a professional perspective on every step. (Optional Pro subscription available with a 14-day free trial.) SUBSCRIPTION & LEGAL Apex Run Pro is an optional auto-renewable subscription (monthly/yearly) with a 14-day free trial. Payment is charged to your Apple ID at purchase confirmation and renews automatically unless canceled at least 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.slowbloom.fit/privacy

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Your watch stopped mid-run? Put the session back together. When a watch is stopped and restarted, one run gets recorded as two short efforts — distance split, time split, and an average pace that reflects neither. Open the first one, choose Merge Next Run, and Apex Run rebuilds it as a single session: one route, one set of splits, best efforts that span the break. Your originals stay in Apple Health, and deleting the merged run brings them back. Also in this release: • Splits on imported and manually added runs appear at once instead of taking seconds. • Delete a run could crash the app on the way back to your summary. Fixed.

The developer, Chen Hao, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Health & Fitness
    • Usage Data
    • Diagnostics

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

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

Seller
  • Chen Hao
Size
  • 15.9 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
English and 2 more
  • English, Simplified Chinese, Traditional Chinese
Age Rating
9+
In-App Purchases
Yes
Copyright
  • © 2026 SlowBloom Studio