Stop watching tutorials.Start writing code.
Koda is the bridge from beginner to intermediate in Python, JavaScript, TypeScript, Java, and Rust. Real code execution. 5,900+ questions. Built for people switching into tech.
Free to start · Pro from $7.99/mo · Cancel anytime

Most coding apps stop where the real work begins.
Beginner apps teach you what a for-loop is. Bootcamps assume you've already built things. Koda fills the gap in between — exactly where most career switchers get stuck.
5,900+ questions
Across five languages and every concept that matters from variables to data structures.
Actual execution
Write real code. Run it on a real interpreter. Debug real errors. No simulated output.
Beginner → Intermediate
Every lesson moves you closer to the level where you can actually build things.
Three taps. Real code.
Every screen, built around one idea: get from "I don't know what a variable is" to "I just built that" without ever leaving your phone.

Lessons
Bite-sized concept lessons. Locked progression so you never skip ahead.

Real code editor
Write Python, JS, TS, Java or Rust. Tap run. See real output.

Streaks & XP
Activity grid, daily streak, accuracy. The structure that keeps you coming back.
A path, not a maze.
Pick your language
Choose from Python, JavaScript, TypeScript, Java, or Rust. Switch anytime.
Learn in 5-minute lessons
Bite-sized concept lessons. No 2-hour videos. Get unstuck and move on.
Write real code
Every concept has a code exercise. Type code, tap Run, see what happens. Real interpreter, real output.
Build a streak. Level up.
XP, badges, daily streaks. The structure that keeps you coming back when motivation fades.
Less than a coffee a week.
Free to start. Pro unlocks everything.
Pro Monthly
- All 5 languages
- 5,900+ questions
- Unlimited code runs
- Cancel anytime
Pro Annual
- Everything in Monthly
- $3.33/month equivalent
- Same price as 5 months of Monthly
- Cancel anytime
Real answers.
Yes. We start at “what’s a variable” and take you all the way to “I can solve real problems.” No prior coding experience required.
Most beginner apps cover beginner content well but stop there. Koda covers beginner AND intermediate — which is exactly the gap where most career-switchers actually get stuck.
Yes. Real Python, JavaScript, TypeScript, Java, and Rust runtimes. Self-hosted code runner. No simulated output, no fake interpreter — you write code, we run it, you see what actually happens.
No. We assume zero coding background. If you can use a phone, you can start Koda.
Yes. Your subscription is managed by Apple or Google depending on where you bought it — cancel anytime from your device settings.
Because most careers are built on one or two of them. Python and JavaScript cover most web/data/AI work. TypeScript is the modern web. Java still runs enterprise. Rust is where serious systems are heading. Pick your path; we cover all five.