MasterJi vs Devmaxx

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.

System design is becoming one of the most important skills for software engineers. Many companies now require a dedicated system design interview, and your career growth often depends on your ability to design large-scale systems. Devmaxx gives you one focused system design question every day across databases, infrastructure, APIs, theory, and product to help you learn these skills and stay sharp. Each question takes about two minutes, and includes a resource to learn more about the subject. What you’ll get:
 • A new system design question daily
 • Clear explanations for every answer
 • Breakdown of the correct answer
 • Access to previous questions
 • Linked resources to go deeper
 • Access to a private community of developers learning and building the same things as you • Progress tracking to monitor growth If you’re preparing for interviews, this builds daily momentum. If you’re already working as an engineer, this keeps your fundamentals sharp. Open the app. Answer one question. Land the offer. * All features described above require a subscription Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/