RemNote
Description: RemNote is a free, open-source spaced repetition and note-taking app. It uses an interconnected web of notes to promote understanding and long-term memory retention. Key features include note linking, spaced repetition flashcards, knowledge graphs to visualize connections, and excellent mobile apps.
Type: software
Pricing: Open Source
Wordnik
Description: Wordnik is an online English dictionary and language resource that provides dictionary and thesaurus content, example sentences, audio pronunciations, and word-of-the-day features. It covers over 4 million words and includes definitions, pronunciations, etymologies, examples, and more.
Type: software