App privacy
These notes describe ZwinkerBox. Markus Dietl, bavarianTechWorks, is responsible for app development and support. The postal address is in the legal notice. Updated: 23 October 2026.
bavariantechworks@mailbox.org · Legal notice
Photos and settings on the iPad
Photos, events, edits and print journals are processed locally in app storage. The operator PIN is protected in Keychain. The app does not automatically send this data to us and contains no advertising or analytics SDKs of our own. Export important data yourself; reinstalling is not a backup. Updates keep operator access; reinstalling resets the PIN.
Sharing and local download
Only exports or sharing initiated by the operator go to selected destinations, whose own privacy rules apply. QR download temporarily shares the current finished JPEG on the same Wi-Fi. It uses local HTTP without transport encryption. Anyone with the valid link on the reachable network can retrieve the photo. Closing, backgrounding, Wi-Fi loss or a maximum of two minutes ends sharing.
Apple purchases and TestFlight
Apple processes purchase and subscription data under its own terms. The app uses locally verified purchase data to check access; we do not operate an account or payment server for this. With TestFlight, Apple may provide us with diagnostics, crash reports, usage information and feedback you submit. Depending on the invitation method, this may include your name and email address.
Support and your rights
We use voluntary support messages to answer your request (GDPR Article 6(1)(b) or (f)). See website privacy for mailbox.org, retention and privacy rights. Contact us for access, correction, erasure, restriction, portability or objection; you may complain to a data protection authority. The operator manages and deletes local event data on the iPad.
The event organiser or photo booth operator determines the purpose, legal basis, sharing and retention of guest photos. Inform guests and obtain any necessary consent. The app does not replace that responsibility.