Readr uses an on‑device AI model that parses the selected passage and searches the entire book for relevant information, then generates a concise answer with source citations directly in the margin.
No, Readr is currently available for iPhone, iPad, and Mac. Android support is planned for a future release, but you can use the web version on Android browsers.
No, Readr works entirely offline. All AI inference and text processing happen on your device, so you can read and ask questions without any internet access.