Tillbox Privacy Policy

Effective date: 2026-10-22

Tillbox — a sales and stock book for small shops that lets you record sales with one tap, keeps stock counts up to date, records restocks with their cost price and expenses, and shows sales and profit reports you can export ("the app") — is provided by DDJ A1 ("we", "us"). This policy explains what data the app handles and how. Tillbox has no account system and we do not operate a server for it.

Data stored on your device

Your shop name, currency setting, items (names, prices, cost prices, stock counts, units, categories and codes), sales (items, quantities, prices, discounts, payment method, optional customer name and note), restocks, expenses and app settings are stored only on your device and are not transmitted to us. Uninstalling the app deletes this data from your device. Android's standard app backup may include this data in your own Google account backup if you have device backup enabled; that backup is controlled by you and Google, not by us.

Customer names you enter

If you record a credit (unpaid) sale, you type a customer name so you can see who owes you money. This name stays on your device with the sale. We never receive it. Please only enter what you need to run your shop.

Backup files, exports and sharing

• Back up to a file / Restore from a file. The app writes a single backup file to the location you pick in the Android file picker (for example your phone's storage or Google Drive), and reads it back when you restore. The app does not upload it anywhere by itself.
• Export (CSV or PDF). The app writes a report file to the location you pick.
• Share report. The app creates an image card of the report and hands it to the app you choose in the Android share sheet.

Where these files go after that is controlled by you and the service you chose.

Permissions the app asks for and why

• Notifications (optional). For a morning note when items are low on stock and an evening summary of the day. You can decline; everything else still works.
• Run at startup. So that the daily reminders are restored after your phone restarts or the time or time zone changes.
• Internet access and the advertising identifier (AD_ID). Used only by the advertising components described below. Selling, stock, reports, exports and backups work offline.

The app does not use the camera, the microphone, your location permission, your contacts or your photos.

Information collected automatically

When you use the app, certain information may be collected automatically by third-party SDKs used for advertising. This may include:

• Your device's Internet Protocol (IP) address, which may be used to estimate your approximate (general) location
• Device or other identifiers, such as your device's advertising identifier (Advertising ID) and app set ID
• App interactions, such as session time, screens viewed, and ad views and taps
• Crash logs and diagnostic information, such as the mobile operating system and device model you use and ad performance data

This information is collected by the advertising SDK and shared with Google (AdMob) and its advertising partners for advertising, analytics, and fraud prevention, security and compliance purposes. It is encrypted in transit. The app itself does not send your items, sales, customer names, expenses or reports off your device, and we do not link the advertising data to them.

Advertising

The app displays advertisements provided by Google AdMob: a banner at the bottom of most screens, an ad when the app starts, and full-screen ads only at natural pauses (for example when you open an item's details, after you save a restock or after you export a report). No full-screen ads are shown right after you record a sale. To serve ads, AdMob and its partners may access your device's Advertising ID and the information described above. For users in the European Economic Area (EEA), the United Kingdom, and other regions where required, the app presents a consent form via Google's User Messaging Platform (UMP) before personalized advertising data is used; if you decline, non-personalized ads are shown instead. You can reset or limit ad personalization at any time in your device settings (Settings → Google → Ads), and you can change your consent choice from the app's Settings screen.

For more information on how Google uses data when you use partners' apps, see https://policies.google.com/technologies/partner-sites.

Children

Tillbox is not directed to children under 13. We do not knowingly collect personal information from children.

Your rights

Because your data exists only on your device, you are in direct control of it: you can edit or delete any item, sale or expense at any time, restore or replace data from your own backup file, and uninstalling the app removes everything the app stored. Depending on your region (e.g. GDPR in the EEA/UK, CCPA in California), you may also have rights regarding data processed by advertising SDKs; you can exercise ad-related choices through the consent form and your device's ad settings described above.

Changes

We may update this policy. Material changes will be reflected on this page with a new effective date.

Contact

Questions? Email bloodturtle@naver.com.