Catalogd

Privacy policy and support. Last updated 19 September 2026.

Privacy policy

Catalogd is a book tracker for iPhone and iPad. No account, no analytics, nothing on our servers.

What we collect

Nothing. Catalogd has no accounts, no sign-in, no analytics and no advertising. We operate no server that receives your data, so there is no copy of your library anywhere but your own device.

What stays on your device

None of this is transmitted anywhere. Deleting the app deletes it.

What leaves your device

Requests to look up books, and nothing else. They go to Open Library, a service of the Internet Archive, and, for covers only, to Inventaire, a non-profit that publishes open book data.

These requests carry the book being looked up and nothing else. They do not carry your identity, your library, your ratings, or your notes, because Catalogd has no identity for you to carry. Open Library receives them under its own terms, and Inventaire under its own.

Things you choose to send

Some actions hand data to another app, and only ever when you tap them:

Children

Catalogd collects no personal information from anyone, including children.

Changes

If this policy changes, the date above changes with it.

We do not sell your data. There is no data of yours for us to sell.

Support

Questions, bugs and requests: hello@froggo.org.

The fastest bug report comes from the app itself: Settings, then About, then Report a Problem. It attaches a redacted diagnostic log, which you can read before it sends.