Unlock every exercise

The first 8 exercises are free, no account needed. Plus unlocks the rest of the catalog.

Plus

for 12 months, tax included

  • 11 courses
  • 102 exercises
  • Certificates of completion
  • Everything new for 12 months
  • One payment, no auto-renewal

Groups

  • Plus for every learner
  • Reuse seats for each new class
  • One invoice for the whole group
  • Founder support
  • Minimum 10 seats
  • Renews yearly until cancelled

Not ready yet? Start with the free exercises.

Need to pay by invoice? Talk to us.

“I’ve been looking for something like this for years... I played with it for a little while, then immediately paid for a year.”
Dan Kelly · Equipment Engineering Technicianvia GitHub ↗