Pricing

The way to actually get good at system design.

Practice on the canvas free, forever. Pay only for real-time AI feedback - and unlock the problems top companies actually ask.

Showing prices in USD.

Free

Try LeetNode

$0 forever

20 Sparks one-time on signup
5 starter problems on the free tier
Full canvas - drag, draw, connect, save up to 3
Deterministic Run (simulator scoring) - unlimited
Reference solution reveal after submit

You'll need Pro once your 20 free Sparks are spent.

Pro · most popular

LeetNode Pro

$10 / month

≈ ₹799 / month

600 Sparks every month - ~120 full AI critiques or 600 Node chats
Every problem unlocked, including premium "asked at top companies" set
Priority AI queue - your critique runs first
Free hints, no Spark cost
Download polished PDF solutions for every problem
Bi-weekly system design newsletter
Unlimited canvas saves with full version history
Advanced dashboard analytics

Pay with UPI, cards, Apple Pay or Google Pay. Cancel anytime.

Just need Sparks?

Top-ups never expire.

100 Sparks

≈ ₹149

300 Sparks

≈ ₹349

1000 Sparks

$20

≈ ₹999

What are Sparks?

Sparks power real-time AI feedback inside the canvas. Spend a Spark when you ask Node - your in-canvas AI mentor - for help. Spend 5 to submit your design for a full Claude critique with per-pillar scores and concrete suggestions.

5 Sparks per AI submission critique
3 Sparks per re-evaluation after edits
1 Spark per Node AI message while solving
1 Spark per hint unlock (free on Pro)
0 Practice itself - canvas, drawing, deterministic Run - always free

New accounts get 20 Sparks free on signup - enough to fully critique 4 designs before deciding if Pro is right for you.