(LispLab)

About this app

Learn Scheme, the elegant Lisp dialect that shaped modern programming. (LispLab) helps you go from your first parenthesis to real fluency with 90 structured lessons, a built-in REPL, and hands-on exercises. Study core ideas like lists, functions, recursion, higher-order functions, and data structures one day at a time. Features:  • 90 guided Scheme lessons  • Built-in REPL and interpreter  • Exercises with hints and instant feedback  • Progress tracking and daily streaks  • Light, dark, and automatic themes • Now includes a Logo module! Logo is a member of the Lisp family, but with graphics and a design to appeal to new programmers. Perfect for beginners, students, and programmers exploring functional programming.

Added a "run Logo slower" button, so you can watch the turtle doing its thing!

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 22, 2026 · 2:42 PM Free