duiduidui!
Builds a Bayesian model of your knowledge, adapts flashcards, tracks cognitive load, and provides an offline dictionary with AI tutor.
duiduidui! is a Chinese learning app that uses a Bayesian model to track and adapt to a learner's knowledge, solving the problem of unreliable progress tracking and overwhelming review piles. It targets serious individual learners, including students and self-study users, who want trustworthy progress metrics. The app differentiates itself by providing a mathematical model of knowledge, an offline knowledge graph dictionary, and AI tutor companions, rather than gamified points.
Key features
- Adaptive flashcard system
- Bayesian knowledge modeling
- Cognitive load monitoring
- Offline dictionary with 200k+ entries
- Smart search by Chinese, pinyin, English
- Natural speech pronunciation
- Personal phrasebook
- AI tutor (Ask the Tiger)
- MCP server for AI integration
- Progress sharing with teachers