System Design Prep
DeveloperApplication · https://sysdesign.trei.dev/
System design interview workspace for requirements, capacity, APIs, data models, caching, queues, consistency, observability, reliability, security and tradeoff narratives.
What it does
System design interview workspace for requirements, capacity, APIs, data models, caching, queues, consistency, observability, reliability, security and tradeoff narratives.
Free / Basic
- Full system design interview roadmap
- Flashcard questions and model answers
- Local progress save
- Ads may appear for free users
Premium
- Premium removes ads only
Pricing
₹199 / $3.99
Dodo pdt_0Nk6rVUH3ztiOschKX006; Razorpay plan_TIcpFHUMCgOW7n
₹799 / $15.99
Dodo pdt_0Nk6rVV49xYDuDnq64Tla; Razorpay plan_TIcpFWOLPQT6ZN
₹1499 / $29.99
Dodo pdt_0Nk6rVVpmqJ0mfvKkX40q; Razorpay plan_TIcpFjuDOczW9E
Support, privacy and terms
Support / Feedback · Privacy Policy · Terms of Service
FAQ
What is System Design Prep?
System Design Prep is a system design interview workspace for requirements, capacity, APIs, data models, caching, queues, consistency, observability, reliability, security and tradeoff narratives.
Is System Design Prep free?
Yes. All roadmap content is free. Free users see ads.
What does Premium do?
Premium removes ads only.
What are the Premium plans?
Monthly ₹199 / $3.99, Six-month ₹799 / $15.99, Yearly ₹1499 / $29.99.