Privacy Policy Shopping List

Shopping List is an iOS app by M. Lanius. This privacy policy explains what information the app uses and why.

Information the app uses

Shopping List stores shopping items, product names, quantities, purchase status and timestamps locally on your device. This information is used to display your shopping list and recently purchased items within the app.

The app may also store settings such as appearance mode, background color, item transparency and an optional background image you select.

Photo library

If you choose a custom background image, Shopping List may request access to your photo library. The selected image is used as the app background and stored in the app settings. Shopping List accesses photos only when you select them.

iCloud sync

Shopping List uses SwiftData and may use CloudKit for iCloud sync. If iCloud is available and enabled for the app, shopping items and app settings can be synced through your private iCloud account.
Martin Lanius does not operate his own server for this data.

Optional sharing through Firebase

When you use the Android sharing option, Google Firebase Authentication processes your email address, password and technical connection data for sign-in and abuse prevention. Your email address must be verified.

For this feature, Cloud Firestore stores the list name, items, quantities, purchase status, timestamps, a user identifier and the email addresses of participants with access. The database is located in Frankfurt (europe-west3). Verified accounts that have been granted access can read and edit the list. The owner manages access. Participants’ email addresses are visible within the shared list.

Background images and appearance settings are not sent to Firebase. The app does not include Google Analytics. Existing iCloud sync can still sync local lists and settings through your private Apple Account.

The owner can revoke access for individual participants or delete the shared list. In the sharing workflow, you can delete your Shopping List account after confirming your password again. This deletes the Firebase lists you own and their items, removes you from other Firebase lists and removes the associated local copies from the app. Other local and iCloud lists are kept.

For more information about how Google processes and retains data, see Firebase privacy and security. The retention periods described there may also apply to backup systems.

Data storage

Shopping items and app settings are stored locally on your device. If iCloud sync is enabled, this data may also be stored in your private iCloud account.

Tracking and advertising

Shopping List does not use third-party advertising SDKs.
Shopping List does not track you across other companies’ apps or websites.
Shopping List does not sell personal data.

Data sharing

Shopping List does not share shopping items, product names, app settings or selected background images with data brokers or ad networks. iCloud sync is handled through Apple CloudKit as described above.

Contact

For privacy questions, please use the contact form.