MasterJi: Learn & Code

Code challenges & progress

Free · Designed for iPad

MasterJi is your free coding practice coach—built for students, working developers, and community learners who want to stay consistent with interview prep. What you can do: • Solve curated problems in the in-app editor with sample tests, language templates, and detailed results • Explore daily problem drops, company-tagged sets, and public coding sheets tailored to core data structures and algorithms • Jump into coding challenges, submit proof with images, and climb challenge rankings • Earn XP, track your heatmap, maintain streaks, and collect challenge winner badges • Join live multiplayer quizzes with real-time questions, leaderboards, and timed rounds • Join Town Halls and chat in real time with your community (including GIFs, images, and @mentions) Coding Practice: → In-app code editor with multi-language support and sample test cases → Daily problems and company-tagged question sets → Public coding sheets for structured DSA practice → Challenge rankings and proof-based submissions Sign in with Apple, Google, or GitHub to sync progress across devices. MasterJi never shows ads or sells your data, and all uploads stay inside the community. Push notifications keep you informed about upcoming deadlines, quiz starts, wins, and code review reminders. Perfect for: → Students preparing for technical interviews → Developers staying sharp between jobs → Anyone building a consistent coding habit → Communities running live coding competitions Start your coding journey today—completely free.

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What's New in Version 1.6.3 Byte Vault - Added an info disclaimer explaining how bytes are used for coding problems Town Halls - Unread messages now marked more accurately when you return to a chat - Member count loads faster UI & Layout - Fixed wallet screen spacing issues - Achievements now load more items on scroll - Better update prompt with clearer messaging - Fixed challenges tab showing a loader at the right time Performance - General stability improvements

The developer, Hitesh Choudhary, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • User Content
    • Identifiers
    • Usage Data

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Provider
    • Hitesh Choudhary
  • Size
    • 49.4 MB
  • Category
    • Education
  • Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPad
      Requires iPadOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    • English
  • Age Rating
    13+
    • 13+
    • Frequent
      Contests

      Contains
      User-Generated Content
  • Copyright
    • © 2025 MasterJi