Description: Duolingo is a free language-learning platform that offers over 100 total courses across more than 30 languages. The bite-sized lessons make it easy to learn a new language through fun, quick activities on your phone, tablet, or computer.
Type: software
Pricing: Freemium
Description: jRuby is an implementation of the Ruby programming language that runs on the Java virtual machine (JVM). It allows developers to use Ruby syntax and libraries while leveraging the performance, scalability, and enterprise features of Java.
Type: software