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: Knowte is a free, open-source personal knowledge management and note taking application. It allows users to organize notes, tasks, web clippings, and other content in a flexible system based on tags and links instead of notebooks or folders.
Type: software
Pricing: Open Source