Privacy Policy

Version 2026-08-19 · Last updated 2026-08-19

The short version

We collect as little as we can. A username, a password hash, and what you do in the app. No email required, no tracking pixels, no ad networks.
Your uploaded EPUB is held only in volatile server memory during analysis. The application never saves it to persistent storage and discards it when analysis ends; we keep a screened knowledge graph, not the EPUB.
We never sell your data and never train AI models on your books or your knowledge graphs.
We discard the source material when analysis ends and never train on it. Priority extraction uses a third-party AI provider, which we don't control.
Delete your account and it's gone, graphs, chats, progress, all of it.

1. Who this covers

This policy explains how SideQuestAI (ABN 50 405 936 474) ("we") handles personal information when you use BetweenPages. We handle personal information in accordance with the Privacy Act 1988 (Cth) and the Australian Privacy Principles.

2. What we collect, and why

What	Why
Username and password hash	To create and secure your account. We store a salted hash, never the password itself. An email address is optional and only used if you give us one.
Terms acceptance record (version, timestamp, IP address)	To show which version of the Terms you agreed to and when.
Your knowledge graphs (characters, events, relationships, places, themes)	This is the product. Extracted from books you provide and shown only to you.
Reading progress, chats, corrections, favourites, collections	To gate spoilers correctly and keep your account state across devices. This includes text you choose to type into chats or corrections.
Book files you upload	Held only in volatile server memory during analysis to build your knowledge graph. The application never saves the EPUB to persistent storage and discards it when analysis ends. See section 4.
Derived data (screened graph checkpoints and search embeddings of graph facts)	Built to complete analysis and retrieve specific facts. Checkpoints are removed when analysis finishes; graph-fact embeddings are deleted when you delete the book.
Payment records (credit balance, transaction IDs)	To sell and track extraction credits. Card details go directly to Stripe. We never see or store them.
Server logs (IP, request path, status, timing)	IP address, user id, request path, status and timing, recorded for every request, to keep the service running, debug faults and detect abuse. Rotated, and typically retained about 30 days.

We do not use advertising trackers, analytics pixels, or third-party cookies. The only cookie we set is the one that keeps you signed in.

3. What we never do

We never sell or rent your personal information.
We never train AI models on your books, your knowledge graphs, or your conversations.
We never share your library or reading activity with other users.
We do not derive or retain verbatim passages from an uploaded EPUB. Knowledge graphs contain short facts and analysis only, enforced mechanically before they are saved. Text you deliberately type into a chat or correction is stored as account data until you delete the book or account.
We require no training on your text. Third-party processing, where selected, is also subject to that provider's terms and technical settings.

4. Your book files

When you upload an EPUB, the application holds it only in volatile server memory, parses and analyses it, and never saves the EPUB to persistent storage. The raw bytes and parsed chapter text are discarded when analysis ends. What remains is a mechanically screened structured graph of short factual notes, names, relationships, events and themes, not the EPUB or chapter text.

Where analysis happens. Your EPUB is uploaded to our servers and analysed there in volatile memory. There is no on-device option: the book text leaves your device, because that is how the service works. Standard extraction runs on hardware we operate; priority extraction sends text to a third-party AI provider. The application never saves the uploaded EPUB to persistent storage and discards its source material when analysis ends.

What we do and do not control. We do not intentionally retain uploaded book text after analysis, and we never use it to train anything. Infrastructure outside the application, including a reverse proxy, operating-system swap, crash dumps, hosting systems, or a third-party AI provider, may handle data under separate settings or terms. If third-party handling matters to you, do not use priority cloud extraction.

5. Who we share with

We share personal information only with the providers needed to run the service:

Stripe, payment processing. They receive your payment details directly; we receive only a transaction reference.
Our hosting provider, stores the database and files that run the service.
The AI service used for cloud analysis, receives book text during extraction, as described above.

We may also disclose information where the law requires it. Some providers may store data outside Australia; where that happens we take reasonable steps to ensure it is handled consistently with the Australian Privacy Principles.

6. Keeping it safe

Passwords are salted and hashed. Traffic is served over HTTPS. Access to the production system is limited to the operator. No system is perfectly secure, but if a data breach occurs that is likely to cause serious harm, we will notify affected users and the Office of the Australian Information Commissioner as required by the Notifiable Data Breaches scheme.

7. Keeping and deleting your data

We keep your account data while your account is open.
You can delete your account at any time from your Profile page. That removes your knowledge graphs, chats, reading progress, favourites and collections.
Server logs roll off after about 30 days.
We may keep minimal payment records where tax or accounting law requires it.

8. Your rights

You can ask us for a copy of the personal information we hold about you, ask us to correct it, or ask us to delete it. Email support@betweenpages.ai and we'll respond within a reasonable time, usually a few days.

If you're unhappy with how we've handled your information, tell us first and we'll try to fix it. If you're still unsatisfied, you can complain to the Office of the Australian Information Commissioner at oaic.gov.au.

9. Children

BetweenPages isn't intended for children under 15. We don't knowingly collect their information; if we learn we have, we'll delete it.

10. Changes

If we change this policy materially, we'll say so in the app. Each version is dated, and the current version is shown at the top of this page.

Privacy questions or requests: support@betweenpages.ai
SideQuestAI (ABN 50 405 936 474) · Version 2026-08-19