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Every plan includes the reader, your notes and your shelf. Higher tiers unlock more of the library, and Diamond adds the AI study tools: Varta, quizzes, recaps and adaptive text.
| Capability | Free | Bronze | Silver | Gold | DiamondAI tools |
|---|---|---|---|---|---|
| Browse the shared library | |||||
| Borrow and read free titles | |||||
| Highlights, notes and bookmarks | |||||
| Dictionary and saved vocabulary | |||||
| Flashcards with spaced repetition | |||||
| Read-aloud (text to speech) | |||||
| My Shelf — upload your own PDFs1 GB, 30 files | |||||
| Bronze-tier titles | |||||
| Silver-tier titles | |||||
| Audiobooks with read-along | |||||
| Gold-tier titles | |||||
| Varta — ask the book, cited to the page | |||||
| Quizzes and mastery tracking | |||||
| Chapter recaps | |||||
| Adaptive simplification | |||||
| Concept maps and entity search | |||||
| Diamond-tier titles |
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