Upgrade to Premium

Unlock advanced training calculators with comprehensive workout libraries

✅ Free Plan

What you get:

  • ✓ VOâ‚‚max calculator with basic training zones
  • ✓ Critical Speed calculator with threshold zones
  • ✓ Basic pace/speed conversions
  • ✓ Training zone recommendations
FREE

🚀 Premium Plan

Everything in Free, plus:

  • ✓ Threshold Builder: Complete workout library
  • ✓ Multi-anchor sessions using LT1/LT2 HR
  • ✓ Cruise intervals & broken threshold
  • ✓ Over/unders & progression runs
  • ✓ Tempo + Zone 2 Builder: HR-anchored workouts
  • ✓ Zone 2 continuous & tempo intervals
  • ✓ Advanced progression sessions
  • ✓ Detailed workout prescriptions
$9.99

One-time payment

Why Upgrade?

🎯 Precise Training

Get detailed workout prescriptions with exact rep counts, recovery times, and intensity targets based on your physiological markers.

📈 Progressive Development

Access advanced progression sessions that systematically build your aerobic capacity and threshold power.

💪 Complete Library

Choose from dozens of proven training sessions including continuous, interval, and broken session formats.

âš¡ Professional Quality

Same calculation methods used in our professional lab testing services, now available as training tools.

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