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Coddy Mobile App

Learn to code on your phone, free

Join 3.8M+ learners practicing Python, JavaScript, and 19+ other languages on iPhone, Android, and the web. Real code, short daily lessons.

4.9App Store4.8Google Play
3.8M+Active learners
19+Languages & topics
4.9★App Store rating
100%Free to start

Why people stick with Coddy on mobile

Not another reading app. You write real code in your pocket and your progress actually sticks.

  • Real code in your pocket

    Every lesson is interactive. You type, run, and debug right inside the app, with instant feedback on every line.

  • 19+ languages and topics

    Python, JavaScript, Java, C++, SQL, HTML, CSS, Go, Rust, Swift, and more. Pick any and start free.

  • AI hints when you're stuck

    A built-in AI tutor explains errors, suggests fixes, and walks you through tricky concepts in plain language.

  • 5-minute lessons

    Bite-sized lessons designed to fit your commute, your coffee break, or a quick study session.

  • Streaks that keep you coding

    Daily streaks, XP, badges, and a global leaderboard turn practice into a habit you'll actually keep.

  • Earn a certificate while you commute

    Finish a section on your phone and you get a verifiable certificate you can drop straight on LinkedIn or your CV.

Start coding in 60 seconds

No setup, no signup wall. Just three steps from download to your first working program.

  1. 01

    Install on iOS or Android

    Grab Coddy from the App Store or Google Play. Prefer the browser? Open coddy.tech and skip the install entirely.

  2. 02

    Pick a language

    Choose from Python, JavaScript, Java, and 16+ more. Start at zero or jump ahead with the placement quiz.

  3. 03

    Code a little, every day

    Build a streak with short daily lessons. Each one ends in a real coding challenge, and a new certificate to earn.

Every language we teach, in your pocket

From Python and JavaScript to Rust and Go, every Coddy track works on iPhone, Android, and the web.

Loved by 3.8M+ learners

Real reviews from the App Store and Google Play.

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Frequently asked questions

Is the Coddy app really free?
Yes. Every lesson, challenge, and certificate is free on iOS, Android, and the web. Coddy PRO is an optional upgrade for power users (AI Plus and deeper analysis), but you can finish every course without paying a cent.
What can I learn with the Coddy app?
19+ programming languages and topics: Python, JavaScript, Java, C++, C#, Go, Rust, TypeScript, SQL, HTML & CSS, and more. Plus interview prep, daily challenges, and a built-in AI assistant.
Do I need any coding experience to start?
No experience required. Coddy is built for complete beginners, so the first lessons assume you have never written a line of code. If you already know the basics, take the placement quiz and skip ahead.
Does Coddy work offline?
The iOS and Android apps cache your current lessons so you can keep learning on the subway or a flight. You'll need a connection to sync progress, use the AI assistant, and unlock new chapters.
How is Coddy different from other coding apps?
Coddy focuses on writing real code, not just multiple-choice questions. Lessons run in a real in-app code editor, the AI tutor explains your specific errors, and every section ends with a free verifiable certificate.
Will Coddy help me get a job?
Coddy gets you to the level where you can write, debug, and ship real code, which is what employers actually test for. Plenty of learners have used Coddy certificates and projects to land their first dev role, internship, or freelance gig.
Which devices does the Coddy app support?
iPhone and iPad running iOS 16 or later, Android phones and tablets on Android 8 or later, and any modern desktop browser. Your progress syncs across all of them.
Coddy programming languages illustration

Start coding today, free

GET STARTED