Privacy policy
Effective: set at release
Skyfolio ("the app") does not collect personal data. The developer runs no servers, and the app uses no advertising, analytics or tracking tools.
Used only on your device — location (to place the sky chart), camera and motion sensors (AR sky view), your photos and notes (favorites, journal). None of this leaves the device.
Servers you choose — resource packs and note sync are exchanged only with an address you enter yourself (for example your own computer). That server is yours; the developer has no access to it.
External image service — for reference images on the sky chart, the app sends sky coordinates of objects to CDS (Strasbourg astronomical Data Centre, France). No information that identifies you is included.
Deletion — deleting the app removes all of its data from the device.
Contact — through the issue board on the support page, or by email (an email you send is used only to answer it). Changes to this policy come with an app update.