637 problems · read 12 free · cancel anytime
Simple pricing
Access is enforced server-side against your session. Payments are processed by Whop with validated checkout tokens. Access unlocks automatically once your purchase is verified.
Free
$0
12 problems, fully free
- 12 core problems, completely unlocked
- Full descriptions and build blueprints
- Attach 1 verified web app to a problem
- Browse all 637 titles, blurred until you upgrade
Open access
Most popular
Pro
$8per month
25 full blueprints
- Everything in Free
- 25 validated problems, fully unlocked
- Complete solution blueprints
- Build prompts for Cursor, Claude Code, OpenCode
- Cancel anytime, instant access
Max
$59per month
Everything, forever
- Everything in Pro
- Unlimited access to the entire database
- All 637 problems and blueprints, forever
- Lifetime access. No subscription, no renewals
- New entries included as the vault grows