Reader study features overview

AI-assisted explanations

The reader can generate translations and grammar breakdowns for individual sentences. These are generated on demand and scoped to the sentence you are currently studying — not whole stories in one shot. This keeps the AI response focused and avoids overwhelming you with analysis of text you have not reached yet.

Translations give you a natural-language rendering of the sentence in your interface language. They are designed to help you confirm comprehension, not to replace word-level study. See Choosing your study language to make sure your language settings are correct.

Grammar breakdowns explain the grammatical structure of the sentence: which words are verbs, what tense they are in, how particles or prepositions relate to the surrounding words, and so on. The depth of the breakdown depends on the language and the sentence complexity.

These features depend on the AI provider configured for the instance. For details on how AI providers handle your text, see Privacy and data handling.

Quizzes

Quizzes draw from vocabulary in the story you are reading. In standard quiz rotation, Learning, Familiar, and Known words are prioritized. New words can appear as fallback material, while Mastered and Ignored words stay out of the rotation.

Quiz types currently include:

• Multiple choice: choose the best answer for the prompt
• Matching pairs: connect words and meanings in a batch
• Flashcards: reveal the answer, then mark whether you got it right

Quiz results feed into your stats. See Word familiarity levels for how the six levels work.

Listening time

When you study with audio — whether from uploaded narration, YouTube captions, or text-to-speech — listening time may be tracked separately from reading time. This helps distinguish passive listening sessions from active reading sessions. See Reading time and idle pauses for details on how each type of time is measured.

Next: Words read and study credit explains how your reading progress is measured.