Privacy

Last updated: 2026-05-22

R2D2 Reader is built to respect your reading life. This page describes what data the app collects, how it's used, and what you control.

What stays on your device

Every PDF you import.
Your reading progress, highlights, and per-page memory state.
Your quiz answers and scores.
Reading streak, session times, and daily-minutes history.

None of this leaves your device. We have no servers that store it.

What goes to our backend

When you tap Take Quiz, the chapter's plain text is sent to our backend, which forwards it to Anthropic's Claude API to generate the questions. The chapter text and the model's response are never logged.
A random per-install identifier (32 hex characters) is sent with each quiz request so we can enforce a per-device rate limit. It contains no personal information and is not linked to any account.

Third parties

Anthropic — receives the chapter text used to generate a quiz. See Anthropic's terms.
No advertising trackers. No Google Analytics. No Meta pixel. The landing page itself uses only Google Fonts for typography.

Your controls

Disabling quiz generation per book is one tap in the reader.
Deleting a book wipes every page-memory, highlight, quiz, and result row tied to it.
Deleting the app wipes everything stored locally. The per-install id vanishes with it; we have no way to identify you afterwards.

Children

R2D2 Reader is not directed to children under 13.

Contact

Questions, requests, complaints: hello@r2d2reader.app.