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Immersion-based language learning toolkit that turns Netflix, YouTube, and web content into study material via a browser extension and apps.
Browser extension that adds dual subtitles and click-to-lookup to Netflix and YouTube for learning languages.
AI language coach offering conversational practice with real-time feedback across 130+ languages.
Free AI-powered academic search engine indexing 236M+ papers, for researchers wanting semantic literature discovery and an augmented reader.
AI reviewer that critiques academic manuscripts and Coauthor agents that search, cite, and draft alongside researchers.
No public pricing
Free trial available
No public pricing
No public pricing
Free trial available
No public pricing
No public pricing
- ✦Chrome extension for immersive study on real sites
- ✦Netflix and YouTube subtitle learning
- ✦Spaced-repetition memory system
- ✦Built-in dictionaries and grammar reference
- ✦iOS and Android apps
- ✦Support for 12+ languages
- ✦Dual subtitles on Netflix and YouTube
- ✦Click-to-lookup word translations
- ✦Saveable vocabulary items
- ✦Playback controls for language study
- ✦Works as a browser extension
- ✦Conversational practice with AI tutors
- ✦Real-time personalized feedback and corrections
- ✦Dialogue, sentence, word, call, photo, and debate modes
- ✦Voice interaction with natural AI voices
- ✦Grammar courses and language certificates
- ✦130+ languages on web, iOS, and Android
- ✦AI-powered semantic search across 236M+ papers
- ✦Semantic Reader for augmented, contextual paper reading
- ✦Free public API for paper search and metadata
- ✦Author and topic discovery
- ✦Citation graph exploration
- ✦Beta program for new features
- ✦AI manuscript review flagging gaps in argument and evidence
- ✦Citation search across 200+ million academic sources
- ✦Coauthor agents that search, read, and draft alongside users
- ✦Journal recommender and chat support
- ✦Confidentiality guarantee that documents aren't used for AI training
- →Learn a language through native media
- →Study vocabulary with spaced repetition
- →Turn videos and articles into lessons
- →Progress toward proficiency exams like JLPT
- →Learn a language while watching shows
- →Look up and save new words from video
- →Study with dual subtitles
- →Self-learners practicing conversational fluency
- →Business teams training employees in new languages
- →Students supplementing classroom language education
- →Researchers searching scientific literature across disciplines
- →Developers building applications on top of scholarly data via the API
- →Students exploring citation networks for a topic
- →Librarians and academics needing free literature discovery tools
- →Graduate students refining a thesis or dissertation
- →Researchers preparing a manuscript for journal submission
- →Students polishing essays and reports for coursework
- →Getting fast feedback without waiting on a supervisor