Drill
Plans & Credits

Choose your learning plan

Credit-based subscriptions with monthly renewals. Cancel anytime.

Choose Your Plan

Monthly credits included. Buy extra credits anytime.

Free
Explore Drill with monthly credits
$
0
.
0
0
/month
  • 50 credits / month
  • Unlimited depth
  • Community support
Basic
For regular learners and students
$
9
.
9
9
/month
  • 500 credits / month
  • Knowledge tree history
  • Email support
Pro
For power learners and professionals
$
2
9
.
9
9
/month
  • 2000 credits / month
  • Priority AI processing
  • Email support

What you get

  • Highlight-to-drill AI explanations
  • Infinite-depth knowledge trees
  • Smooth zoom in/out layer navigation
  • Code syntax highlighting in explanations
  • Persistent knowledge tree history
Drill knowledge tree preview
Cancel anytimeSecure paymentsCredits renew monthlyEmail + community support

Buy Extra Credits

One-time credit packs; credits valid for 1 year.

Small
Perfect for occasional use
$4.99
100 credits • one-time
Medium
Most Popular
Great value for regular users
$9.99
500 credits • one-time
Large
Best Value
Best value for power users
$19.99
1500 credits • one-time

Frequently Asked Questions

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