CodingPrep is a clean, distraction-free technical interview preparation platform for software engineers, CS students, and coding candidates.
Operates 100% offline with zero ads, zero tracking, and no account required.
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WHAT'S INSIDE
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• 54 DSA Problems: Curated challenges (Easy, Medium, Hard) across Arrays, Trees, Graphs, DP, and more. Includes multi-language solutions (Python, Java, C++) and Big-O complexity analysis.
• 16 Algorithmic Patterns: Master reusable problem-solving techniques including Two Pointers, Sliding Window, Fast & Slow Pointers, and Merge Intervals.
• 120+ Core CS Concepts: Clear explanations and ASCII diagrams covering OOP (SOLID principles), DBMS (ACID, Normalization, Indexing), Operating Systems (Processes, Deadlocks, Paging), Computer Networks (OSI, TCP/IP, DNS, HTTP/3), and System Design basics.
• 32 SQL Challenges: Realistic query problems covering JOINs, GROUP BY, aggregations, subqueries, and Window Functions.
• Interview Hub & Mock Simulator: 64 technical & behavioral (STAR framework) questions, plus a timed mock interview room with scoring and readiness tracking.
• Developer Workspace: Global offline search (grep), custom bookmarks library, streak tracking, and dark/light terminal themes.
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PRIVACY & OFFLINE GUARANTEE
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• 100% Offline: No internet connection needed or requested.
• Zero Permissions: No access to camera, location, storage, or contacts.
• Zero Ads & Zero Tracking: No ads, no analytics, no background telemetry.
• Private & Local: All progress stays strictly on your device. Wipe your data anytime in Settings.
Master DSA problems, core CS concepts, SQL challenges & mock interview prep.