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InterviewOS is your complete operating system for interview preparation. It brings DSA patterns, frontend, backend, and system design into one unified platform — so you can study smarter, track progress, and build real confidence.

Head to the patternDSA module from the sidebar or dashboard. Start with the Study Plans section to pick a plan that fits your timeline (7-day, 14-day, or 30-day), or jump straight into the Pattern Library to browse all 30+ patterns.

You can browse patterns and theory content as a guest. However, features like progress tracking, bookmarks, notes, analytics, and study plans require a free account so we can save your data.

Coding patterns are reusable problem-solving templates (like Sliding Window, Two Pointers, BFS/DFS). Instead of memorizing 500+ LeetCode problems, learning ~30 patterns lets you recognise the underlying structure of any new problem and apply the right approach instantly.

Each pattern has a dedicated page with theory (visual explanations, pseudocode, complexity analysis), followed by curated practice problems ordered by difficulty. The workspace includes a code editor, test runner, and notes panel — everything in one place.

Yes! Click the bookmark icon on any pattern or problem page. All your bookmarks are accessible from the Bookmarks section in the sidebar. You can filter by type (pattern vs problem) and search through them.

Your progress is automatically tracked as you solve problems. The Analytics dashboard shows your overall stats, completion rates by category, streaks, and weekly activity — giving you a clear picture of where you stand and what to focus on next.

Study Plans are structured curricula with daily targets. Choose from 7-day sprint, 14-day focused, or 30-day comprehensive plans. Each plan breaks down patterns into phases with specific goals, helping you stay consistent and cover everything systematically.

The core platform is free. You get access to all patterns, practice problems, progress tracking, bookmarks, and analytics at no cost. Premium features and additional modules may be offered in the future.

Progress reset is coming soon in Settings. In the meantime, if you need to reset your data, contact support and we will help you.