Plans & Credits
Choose your learning plan
Start free with trial credits and a daily allowance. Upgrade only when Drill becomes part of your workflow.
Choose Your Plan
Start free with trial credits and a daily free allowance. Buy extra credits only if you need heavier sessions.
Start Free
Free
Try the full workflow with trial credits and daily free use
$/month
0
.
0
0
- 15000 trial credits
- 3000 daily free credits
- No artificial depth cap
- Community support
Most Popular
Starter
For people regularly studying dense technical material
$/month
9
.
9
9
- 500000 credits / month
- Knowledge tree history
- Email support
High Volume
Pro
For heavy research and professional reading workflows
$/month
2
9
.
9
9
- 2000000 credits / month
- Priority AI processing
- Priority email support
- Early access to new features
What you get
- Highlight-to-drill AI explanations
- Recursive knowledge trees
- 3-level context navigation
- Code syntax highlighting in explanations
- Persistent knowledge tree history
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Buy Extra Credits
One-time credit packs; credits valid for 1 year.
Small
Perfect for occasional use
$4.99
200000 credits • one-time
Medium
Most Popular
Great value for regular users
$9.99
420000 credits • one-time
Large
Best value for power users
$19.99
850000 credits • one-time