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Case study · Android app · Education

CodeJal: Learn to Code Through Daily Practice

Master coding, one byte at a time. A daily coding companion for Android.

01 — Overview

Your daily coding
companion.

CodeJal helps you build a consistent learning habit. Whether you are a total beginner starting from scratch or an experienced developer looking to sharpen your skills, it makes mastering programming logic and syntax fun, fast, and effective.

02 — Accessibility

Accessibility &
Inclusive Learning.

I am exploring how CodeJal can become more accessible to learners with different abilities and access needs. Read about the app's current accessibility information, known limitations and opportunities for collaboration.

Read the Accessibility & Inclusive Learning page →

03 — Why CodeJal

Consistency is the key
to mastering any skill.

CodeJal removes the friction of learning by providing curated, bite-sized challenges that fit into a busy schedule. The approach focuses on active recall and immediate feedback, so concepts stick.

04 — Key features

Built to keep you
learning every day.

01
Adaptive learning tracks
Start with the curated No Experience track if you are new to programming, or jump straight into Advanced challenges for a serious test of your skills.
02
Daily micro-challenges
A daily mix of logic puzzles, multiple choice questions (MCQs), and code-analysis tasks keeps your brain sharp.
03
Real-time explanations
Don't just find out what you got wrong, understand why. Every mistake comes with instant, detailed feedback so you learn from each session.
04
Gamified experience
Streak-based rewards keep you motivated. Track your progress and watch your proficiency grow as you keep your daily streak alive.
05
Scalable difficulty
Content that grows with you, so you are always challenged at the right level without feeling overwhelmed.
06
AI-Assisted Coding Help with Sky
Sky explains questions, explains errors, and helps you learn coding.
05 — Who it's for

Made for anyone
who wants to keep learning.

Beginners — build a solid foundation in programming logic without the intimidation of complex setups.
Students — supplement your studies with quick, daily practice sessions that reinforce what you learn in class.
Lifelong learners — brush up on core concepts and logic puzzles to stay sharp and ready for your next big project.
06 — Screenshots

App walkthrough.

CodeJal - First screen
First screen
CodeJal - Second screen
Second screen
CodeJal - Third screen
Third screen
CodeJal - Fourth screen
Fourth screen
CodeJal - Fifth screen
Fifth screen
CodeJal - Sixth screen
Sixth screen
CodeJal - Seventh screen
Seventh screen

Start your journey toward mastery.