Clozemaster is a language learning game focused on building vocabulary through mass exposure to sentences. The core mechanic involves filling in a missing word (a "cloze") in a sentence. It uses a spaced repetition system to re-test words and features a heavily gamified interface with points and leaderboards. Sourced from a large corpus of translated sentences, it's an excellent tool for intermediate learners to move beyond basic vocabulary and see words used in a wide variety of contexts, which can implicitly reinforce grammar.

Mango Languages offers a structured, conversation-focused curriculum available for a wide range of languages. Its methodology involves breaking down sentences into component parts and encouraging the learner to construct them piece by piece. Lessons emphasize practical communication and are enriched with cultural notes. A notable feature is the voice comparison tool, which allows users to record themselves and visually compare their pronunciation waveform to that of a native speaker. Many users can access Mango Languages for free through participating public libraries, making it a very accessible option.