CodemasAcad

Vet Cxre

About this app

CodemasAcad is a complete, offline-first backend engineering curriculum. Move beyond video tutorials and dive into hands-on simulations, real code examples, and knowledge checks – all inside a single app.

Learn by building, not just watching.
Each module combines concise theory with interactive simulations where you design APIs, configure rate limiters, deploy to Kubernetes, and debug distributed traces – all from your device.

📘 What’s inside

7 comprehensive modules – Foundations, Databases, Microservices, Real‑time systems, DevOps, AI backends, and product‑scale architectures.

70+ lessons – Readings, code examples, quizzes, and interactive simulations.

Live simulations – API builder, JWT auth flow, rate limiter (token bucket), job queues, sharding, circuit breakers, tracing, Docker/K8s playgrounds, LLM endpoints, fraud detection, e‑commerce checkout, and many more.

Code snippets library – Classic algorithms (FizzBuzz, quicksort, memoization), REST handlers, pub/sub, SQL queries, and real‑world patterns.

Progress tracking – Mark lessons complete, track module mastery, and quiz scores.

⚡ Offline-first & private
All lessons, simulations, and code run locally on your device. No account required, no data leaves your phone.

🎯 Who is this for?

Aspiring backend engineers who want to practice core concepts.

Junior developers preparing for system design interviews.

Anyone who learns best by interacting with live systems.

No subscriptions. No ads. Just engineering.

Start building real backend intuition today – one simulation at a time.

What’s new

learn backend engineering through hands‑on simulations.

Includes:

7 complete modules (Foundations to Product‑level systems)

70+ lessons with readings, quizzes, and interactive simulations

API builder, authentication flow, rate limiting, job queues, sharding, circuit breakers, Docker/K8s simulators, LLM playground, fraud detection, e‑commerce, and more

Built‑in code snippets library (JavaScript, Python, SQL)

Progress tracking and quiz scoring

No ads, no tracking, no sign‑up required