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AI language coach offering conversational practice with real-time feedback across 130+ languages.
AI language tutor offering role-play conversations, pronunciation coaching and instant grammar correction across 30+ languages.
Free AI-powered academic search engine indexing 236M+ papers, for researchers wanting semantic literature discovery and an augmented reader.
Gamified platform to learn 20+ programming languages via interactive lessons, a browser playground and an AI tutor.
Real-time AI interview assistant that transcribes questions and generates answers, marketed as undetectable on screen share.
No public pricing
Free trial available
No public pricing
No public pricing
No public pricing
No public pricing
- ✦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
- ✦Real-life role-play conversation practice
- ✦AI pronunciation coaching for accent and rhythm
- ✦Real-time grammar correction during chats
- ✦Adaptive tutoring based on skill level
- ✦Downloadable course and audio materials
- ✦AI-generated, QR-verifiable proficiency certificates
- ✦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
- ✦Interactive lessons in 20+ languages
- ✦Browser playground to run code with no setup
- ✦AI tutor that explains and debugs code
- ✦Shareable completion certifications
- ✦Cheat sheets, docs and developer tools
- ✦Team/business training option
- ✦real-time question transcription
- ✦AI answers with a choice of GPT or Claude models
- ✦coding interview support
- ✦resume-based personalization
- ✦knowledge base uploads
- ✦invisible during screen share
- ✦AI meeting notes
- →Self-learners practicing conversational fluency
- →Business teams training employees in new languages
- →Students supplementing classroom language education
- →Practicing job interview or travel conversations in a new language
- →Getting pronunciation feedback without a live tutor
- →Preparing for language proficiency verification
- →Supervised language practice for teen learners
- →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
- →Learning to code from scratch
- →Practicing a new programming language
- →Getting instant AI help while coding
- →Earning certificates to share
- →Onboarding and training engineering teams
- →getting live answers during job interviews
- →coding interview assistance
- →meeting note-taking