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Free

$0

  • ✓ Techniques 1–2
  • ✓ 10 guided problems
  • ✓ Expert replays
  • ✗ Challenge Mode
  • ✗ Full curriculum
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Monthly

$9.99/mo

  • ✓ All 12 techniques
  • ✓ 60+ guided problems
  • ✓ Challenge Mode
  • ✓ Weekly progress email

Lifetime

$49 once

  • ✓ Everything in Monthly
  • ✓ Pay once, keep forever
  • ✓ Future techniques included