Learn Kotlin with interactive lessons, quizzes & an AI mentor. Daily practice.
Learn Kotlin - Android App Dev — description
Learn Kotlin from scratch — no experience needed. Bite-sized Kotlin lessons, a real code editor on your phone, and an AI mentor that answers your questions in seconds. Built for complete beginners, students and career switchers.
WHY LEARN Kotlin? • Kotlin is an in-demand skill — a strong addition to any resume • Learn by doing: every lesson mixes short theory with hands-on practice • Build real foundations you can use in projects, work and interviews • Start from zero — every concept is explained in plain language
WHAT YOU'LL LEARN • Kotlin fundamentals — the core concepts, step by step • The essential building blocks used in real-world Kotlin work • Practical techniques you can apply right away • Common mistakes — and how to avoid them • Hands-on exercises after every topic • Advanced topics to keep growing beyond the basics
EVERYTHING YOU NEED TO LEARN Kotlin ✔ AI Mentor — stuck on a concept or an error? Ask anything and get a clear answer in seconds ✔ 100+ bite-sized lessons (5–10 minutes each) — built for real life, not lecture halls ✔ Real code editor — write and run Kotlin code right on your phone ✔ Quizzes and coding challenges after every topic to lock in what you learn ✔ Weekly Code Challenge — compete with learners around the world ✔ Certificate of completion — pass the final exam and prove your skills ✔ Streaks, progress tracking and smart reminders to keep you consistent ✔ Learn on the go — lessons load fast and keep working on flaky connections ✔ App available in 22 languages
WHO IT'S FOR • Complete beginners taking their first steps • Students who want extra practice alongside classes • Career switchers building job-ready skills • Anyone curious about Kotlin
Part of CoddyKit — a family of 40+ coding apps trusted by 100,000+ learners worldwide.
Free to start: your first course is free, with a daily AI Mentor allowance. Pro unlocks every course, removes ads and gives you unlimited AI Mentor.
Download Learn Kotlin: Code & Build and write your first line of Kotlin today.