Privacy Policy
Field Book turns your travel photos into illustrated pages. This policy explains exactly what leaves your device and why. The short version: your library lives on your device; we keep as little as possible, as briefly as possible.
What we process, and how
- Photos you press. When you press a page, the photo you chose (downscaled) is sent over an encrypted connection to our server, which passes it to OpenAI's image model (gpt-image-2) to draw the artwork. You are asked for permission before the first press. The photo and the generated artwork are deleted from our storage within 24 hours. Our API traffic is not used by OpenAI to train models (per OpenAI's API policy).
- An anonymous device identifier. A random ID created on your device tracks your page balance and purchases. It is not your name, email, or Apple ID; we have no accounts and cannot identify you from it.
- Purchase records. When you buy pages or subscribe, Apple processes the payment. We receive a signed receipt (no payment details) to credit your pages.
- Published books. If you tap Publish, the pages of that book are stored on our server and visible to anyone with the link, until you unpublish — unpublishing deletes them immediately. Publishing is always your explicit choice; original photos are only included if you turn that on.
What we do not do
- No accounts, no email collection, no contact access, no location tracking (place names on pages come from your photo's own metadata, on your device).
- No advertising, no analytics SDKs, no sale or sharing of data with anyone except the processing described above.
Retention & deletion
Generation photos and artwork: deleted within 24 hours. Published books: until you unpublish or delete the book. Balance/purchase ledger: kept while your device uses the service. Deleting the app removes your local library; to remove a published book first unpublish it in the app. For anything else, email us and we will delete it.