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
Description: Tatoeba is a free, online database of example sentences and translations in over 300 languages. It allows users to find usage examples for words and phrases, see how sentences are translated between languages, and contribute their own translations.
Type: software