Frequently Asked Questions

CodeVarsity is a professional mobile IDE and learning platform built on the Rhombus Methodology™. It enables you to write, compile, and run real code offline on your Android device. It features 50+ structured courses, 30+ interactive visualizers, and supports 15+ languages including Python, Java 21, Go, and Web languages (HTML/CSS/JS).

CodeVarsity is free to download and includes a sandbox IDE for web/scripting. You can try the first 2 layers of every course for free! Full access to courses is via one-time lifetime purchases. Advanced Workspace features (like the mobile Java 21 compiler) are available via subscription with a 7-day free trial.

CodeVarsity is currently available on Android. We are actively working on the iOS version to bring high-performance offline coding to Apple devices soon.

CodeVarsity embeds professional language runtimes directly in the app: an industrial Python 3.10 engine, a professional Java 21 compiler, an advanced Go runtime, and a live-preview Web environment. Everything runs locally on your device - no internet required for compiling or executing code.

Yes! Python comes pre-bundled with professional libraries: NumPy, Pandas, SciPy, Scikit-learn, Flask, Django, Requests, and more. All are fully functional without an internet connection. Note: Matplotlib and Seaborn are not supported due to mobile display limitations.

Yes! You can use input() in Python, Scanner in Java, and fmt.Scanln() in Go. Build interactive CLI programs and terminal-based tools just like on a desktop.

Absolutely! CodeVarsity includes a full web development environment for HTML, CSS, and JavaScript with live preview. You can even use modern frameworks like React and Vue.js.

Our unique 7-layer learning framework takes students from high-level conceptual overviews to technical precision. It combines instructional spirals (Layers 1-3), mastery deep dives (Layer 4), and application spirals for debugging and design (Layers 5-7).

Guided Practice helps you learn by typing character-by-character along with 'Ghost Code' templates. This builds muscle memory and helps you master complex syntax without getting frustrated by simple typos.

We offer 30+ visualizers to help you 'see' your code. This includes Flowcharts, Execution Trace (step-by-step), Memory Manager (Stack/Heap), SQL Database View, and Tree/Graph visualizers for data structures.

Your profile tracks verified coding activity: XP, total lines typed (verified, no copy-paste), Bug Squasher challenges solved, and your first-try rate. You can share your profile URL with recruiters to prove your coding competence.

Yes! Our custom developer keyboard is designed specifically for mobile coding. It includes arrow keys, Tab, Ctrl, and quick-access symbols like brackets, semicolons, and operators.

Yes! The workspace supports complex multi-file projects, folders, and asset management. You can build complete Flask web apps or Java console applications with multiple classes.

Yes! CodeVarsity features real-time linting to catch errors as you type, and auto-formatting that follows professional standards like PEP8 (Python) and gofmt (Go).

Courses are one-time 'Lifetime Access' purchases ranging from $5.99 to $19.99. Once you buy a course, it's yours forever. You can sample the first 2 layers of any course for free.

Advanced IDE features (like the Java 21 and Python compilers) require a Workspace Subscription (starting at $1.99/mo). We offer a 7-day free trial so you can test all pro features risk-free.

We accept Credit/Debit cards (Visa, Mastercard, Amex), PayPal, and region-specific methods like UPI in India through our secure partner, Cashfree.