Privacy Policy
QR Code Scanner: Barcode · Last updated October 4, 2026
This policy explains what information QR Code Scanner: Barcode (“the app”, “we”) collects, why, and who it is shared with. It is written to match exactly what the app does.
Summary
- Tracking. The app asks for permission through Apple's App Tracking Transparency prompt on first launch. The app shows no advertising and does not share your data with advertisers or data brokers. It uses Google Firebase Analytics only to measure how the app is used (for example screens opened, scans and purchase events) so we can improve it, and it is built without the advertising-identifier (IDFA) component. Whether you choose Allow or Ask App Not to Track, every feature keeps working. You can change your choice at any time in iOS Settings → Privacy & Security → Tracking.
- No account, no server of our own. The codes you scan and create, and your history, are stored only on your device. Scanning and creating run on your device; the content of your codes is never uploaded.
- We never sell your data.
1. What leaves your device
The table below lists everything that leaves your device.
| Data | Sent to | Why |
|---|---|---|
| In-app usage and purchase events (screens opened, scans and creations counted, paywall and purchase events) with an app-generated identifier | Google Firebase (Analytics) | Measure how the app is used and improve it |
| Your purchase receipt | Apple (App Store purchases) | Confirm that your subscription is active |
2. What stays on your device
- The QR codes and barcodes you scan or create, their names, colors and your scan and create history — all kept on your device.
- Scanning and creating codes runs on your device. The content of a code is never sent to us.
- If a scanned code contains a link, a Wi-Fi network, a contact, an email, a phone number or a location, the app only acts on it when you tap the action, for example opening the link or saving the contact.
- Your settings and your subscription status are stored on your device.
- Delete items in History, or delete the app to remove everything.
What we do not collect:
- Your name, email address or any account — the app has no sign-in.
- The content of the codes you scan or create, or your scan history.
- Your photo library — photos you pick to scan are chosen by you with the system photo picker.
- Your contacts or calendar — they are only written to when you choose to save a contact or an event.
3. Device permissions
QR Code Scanner: Barcode asks for a permission only when you use the feature that needs it. You can decline, and you can change your choice at any time in iOS Settings.
- Camera — to scan QR codes and barcodes. Frames are processed on your device.
- Photos — to scan a code from a photo you pick, and to save QR codes and barcodes you create to your library.
- Location (while using the app) — only when you create a map QR code, to fill in your current position. It stays on your device.
- Contacts — to save a contact from a scanned contact card, only when you tap save.
- Calendar — to add an event from a scanned calendar code, only when you tap add.
- Tracking (App Tracking Transparency) — to ask whether app usage may be measured across installs. Saying no does not limit any feature.
4. Who we share data with
We do not sell your personal information. We share data only with these service providers, each of which is bound by its own privacy policy and data-protection terms:
- Google Firebase (Analytics) — Tells us which features are used so we can improve the app. Never used for advertising. Receives: in-app usage and purchase events, device model, OS version and app-generated identifiers — never the content of the codes you scan or create. Their privacy policy: firebase.google.com/support/privacy
- Apple (App Store purchases) — Processes your subscription payment and verifies your purchase receipt. Receives: your purchase receipt, handled by Apple. We never see your payment details.. Their privacy policy: www.apple.com/legal/privacy
- Legal requirements — we may disclose information if required by law, or as part of a merger, acquisition or sale of assets.
5. How long we keep it
Data stored on your device stays there until you delete it or uninstall the app. We do not run our own servers and keep no copy of the content you submit. Analytics and crash data are kept for the provider's standard retention period.
6. Legal bases
For analytics and crash diagnostics we rely on our legitimate interest in keeping the app working and improving it. For purchases, we rely on performing our contract with you.
7. Your choices and rights
Depending on where you live (for example under the GDPR or the CCPA), you may have the right to access, correct, delete or restrict the processing of your personal information. In the app you can:
- Stop tracking in iOS Settings → Privacy & Security → Tracking.
- Revoke Camera, Photos, Location, Contacts or Calendar access in iOS Settings.
- Delete your history in History, or delete the app to remove everything.
- Cancel your subscription in iOS Settings → your name → Subscriptions.
For any other request, email khoald2302.ai@gmail.com. We will respond within 30 days.
8. Tracking
The app asks for permission through Apple's App Tracking Transparency prompt on first launch. The app shows no advertising and does not share your data with advertisers or data brokers. It uses Google Firebase Analytics only to measure how the app is used (for example screens opened, scans and purchase events) so we can improve it, and it is built without the advertising-identifier (IDFA) component. Whether you choose Allow or Ask App Not to Track, every feature keeps working. You can change your choice at any time in iOS Settings → Privacy & Security → Tracking.
9. Children
The app is not directed at children under 13, and we do not knowingly collect personal information from them. If you believe a child has provided us personal information, contact us and we will delete it.
10. Changes to this policy
We may update this policy. The date at the top shows the latest version, and material changes will also be noted in the app's release notes.
11. Contact
Khoa Le Duy (KTTLab) — khoald2302.ai@gmail.com