For readers who mark the page

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Privacy and trust

Privacy-First Book Notes on iPhone

Your reading history can reveal your interests, questions, beliefs, and unfinished thinking. A book-notes app should explain what stays on the phone, what requires a network, and how you can delete or export your library before you depend on it.

Updated 3 August 20265 min readPrimary search: private book notes app iPhone

A quote reader for physical books

Photograph marked pages, extract your underlines, and build a searchable quote library on iPhone and iPad.

BookQuotes library screen showing search, saved-quote counts, book cards, and grid/list controls without a visible quote passage.
BookQuotes product evidence from the current first-party build.

Ask where the library lives

The most important distinction is between the personal library and a processing request. In the current BookQuotes release, books, quotes, tags, collections, and related library data are stored locally on the device. Cloud sync is not enabled.

That means the device is also part of your backup plan. Export the library when you want a separate copy, and remember that deleting the app removes local data unless you have exported it elsewhere.

Understand the processing boundary

BookQuotes can use on-device OCR for local processing. A separate remote AI route is available in the relevant signed-in subscriber flow and requires network processing of the marked-page image and extraction request. The app should not describe those routes as interchangeable.

Remote processing is optional in the product flow. Read the current privacy policy before enabling it, especially if the page contains material you do not want to send to a third-party provider.

Check deletion and export before building a library

A trustworthy note-taking tool should give you a clear way to remove account data and should not make export an afterthought. BookQuotes provides in-app account deletion for server-side account and usage records, while the local library remains on the device unless you delete it yourself.

Subscriptions are managed through Apple. Deleting an account does not cancel an App Store subscription, so manage billing separately in Apple subscription settings.

Privacy is a product feature, not a slogan

“Private” should answer a concrete question. Look for a current privacy policy, a clear remote-processing explanation, a deletion route, and export. Avoid absolute claims such as “nothing ever leaves your phone” when a feature can use remote processing.

Questions readers ask

Does BookQuotes store my personal book library in the cloud?

Not in the current release. The local library is stored on the device and cloud sync is not enabled. Account and subscription records are separate service data described in the privacy policy.

Can remote AI process a book page?

Yes, when the eligible signed-in subscriber flow is enabled and the user chooses remote processing. That route requires sending the relevant request for processing, so it should be treated separately from on-device OCR.

Does deleting my account delete my local books and quotes?

No. Account deletion removes the relevant server-side account and usage records. Your local library remains on the device unless you delete it yourself.

Keep the lines that matter

BookQuotes is available on iPhone and iPad.