fivenines
Sign in

Pricing

Build real systems with feedback.

Read theory and complete practice across every published track for free. Build the first three design problems in every track with five AI reviews each, then upgrade for the rest.

Free€0

Learn systems internals before deciding whether to upgrade.

  • Theory across every published track
  • Practice checks across every published track
  • First three design problems in every track
  • Five AI reviews for each free design problem
  • Saved learning progress when signed in
Start free
Pro Monthly€29/month

Flexible access while you build.

  • Everything in Free
  • Every build-your-own design problem
  • D2 architecture workspace
  • AI-powered design feedback
Best value
Pro Annual€199/year

The recommended plan for sustained design practice.

  • Everything in Pro Monthly
  • Every build-your-own design problem
  • D2 architecture workspace
  • AI-powered design feedback
TeamsContact us

For groups that want shared build-your-own-technology practice or onboarding.

  • Team onboarding support
  • Custom technology tracks
  • Volume pricing
Contact us