Access academic and from a large library. Search, read, and highlight content. Download chapters for offline reading. Set reading goals and track progress. Share notes and annotations with others.
Read bilingual stories in multiple languages with side-by-side text. Listen to audiobooks narrated by native speakers. Practice pronunciation and vocabulary through interactive stories. Adjust text size and font for better readability.
Convert PDFs, Word documents, and other files into audio for listening. Adjust playback speed and settings. Skip headers and footers. Highlight text as it is spoken for visual tracking. Support background playback during multitasking.
Take handwritten notes with customizable pens, including Chinese-specific tools like a fountain pen and laser pointer. Create and organize notes in a whiteboard, notebook, PDF, mind map, or flashcards format. Sync and share notes across devices.
Improve , IQ, and cognition through training exercises. Locate emojis using peripheral vision with minimal eye movement. Track progress and access content under Apache License Version 2.0.
Practice listening, speaking, reading, and writing with interactive lessons and exercises. Take practice tests with feedback. Learn vocabulary and grammar. Access expert tips and track progress.
Grammar focusing on with clear explanations and real-world examples. Practice through interactive exercises. Track progress and review mistakes. Access lessons anytime for consistent learning.