For non-technical co-founders
Stop waiting. Start building.
You have the vision and the market. Now build the product yourself. Start with Dart, ship with Flutter.
Start from zero
The Dart course assumes no programming experience. Each concept builds on the last with instant feedback.
Build a real app, not a toy
The Flutter course teaches production patterns. Build something you can show to investors and users.
Speak your engineer's language
Even if you hire later, understanding the code makes you a better founder. Review PRs, estimate timelines, make technical decisions.
Dart → Flutter → SOLID
From business idea to working product.
Write code from lesson one
Every lesson is an exercise you solve in your browser. Real code, real tests, real feedback.
Structured progression
Each concept builds on the last. You always know what to learn next.
Multiple exercise types
Quizzes, fill-in-the-blank, matching, and code keep every lesson engaging.
Instant feedback
Submit your answer and see test results in milliseconds.
Learn by doing
Solve exercises in your browser from the first lesson.
Join over 5,000 learners
Explore our courses
Pick a course and solve your first exercise.
Dart Course
An interactive Dart course where you code, test, and build apps directly in your browser.
Flutter Course
An interactive Flutter course where you code, test, and build apps directly in your browser.
S.O.L.I.D. Course
Learn the principles of how software should be structured, so you can guide AI to build better systems.
D.R.Y. Course
Learn to identify and eliminate code duplication, making your codebase cleaner and easier to maintain.
System Design Course
Learn how APIs, databases, caching, and load balancing fit together to build scalable systems.
Interactive courses
Every lesson is an exercise with instant feedback.
Build what you've been pitching.
Interactive courses that take you from zero to a real, shipped product.