Free€0
Learn systems internals before deciding whether to upgrade.
- Public theory and practice across every track
- 10 lifetime AI reviews
- Theory, practice, and D2 modeling
Pricing
Build real systems with feedback.
Read theory and practice across every published track for free. Upgrade for expanded design feedback.
Pro Monthly€29/month
Flexible access while you build.
- Full Redis track
- AI feedback reviews
- Saved progress
- 200 reviews per month
Pro Annual€199/year
The recommended plan for sustained design practice.
- Everything in monthly
- Best value for a full Redis track pass
- Launch discounts apply in checkout
TeamsContact us
For groups that want shared build-your-own-technology practice or onboarding.
- Team onboarding support
- Custom technology tracks
- Volume pricing