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CS Fundamentals
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Roadmap
CS Fundamentals
Content
Practice
Progress & Perks
Extras
Same Premium plan — choose how you want to pay. Lifetime is a one-time payment and includes every future phase we ship.
Yes. Phases 1–4 (Foundations, Searching, Two Pointers & Sliding Window, and Basic Sorting) are completely free — no account required. Interact with every visualizer, adjust inputs, and walk through the simulations frame by frame.
Everything. All 17 phases of the roadmap — Stack, Queue, Linked List, Hash Map, Trees, Heaps, BSTs, Graphs, Matrix, Backtracking, Dynamic Programming, Greedy, Disjoint Set, and Trie — plus every future phase we ship. You also get the full article library, all problem hints, and priority support.
Monthly (₹399) is the lowest-commitment way to try Premium. Yearly (₹2,999, ~₹250/mo equivalent) saves 37% vs paying monthly — best if you’re studying through a placement season. Lifetime (₹7,499 one-time) means you pay once and never see a renewal again, including every future phase we ship — best if you’re long-term serious about DSA mastery.
Yes. Monthly and Yearly subscriptions can be cancelled anytime from your profile — you keep access until the period ends. Lifetime is a one-time payment, so there is nothing to cancel.
Yes — a 7-day money-back guarantee on Monthly and Yearly, no questions asked. Lifetime purchases are eligible for a refund within 14 days of purchase if you have not consumed more than the free phases.