Privacy Policy
QR Scanner Premium ("the app") is built to work without an account and without sending your scans anywhere. This page explains exactly what the app does with data, which third-party services it uses, and how to contact us.
1. Summary
- Camera frames are processed on your device only. They are never stored or uploaded.
- Your scan history and created codes are stored only on your phone. You can delete them at any time.
- We do not ask you to create an account and we do not collect your name, email address or contacts.
- This is the paid, ad-free edition: it contains no advertising SDK and does not access your advertising ID. Anonymous usage statistics are collected through Firebase Analytics.
2. Data the app handles on your device
| Data | Why | Where it goes |
|---|---|---|
| Camera images | To read QR codes and barcodes in real time | Processed in memory on the device and discarded. Never saved, never sent. |
| Images you pick from your gallery | To read a code from a photo, or to use as a logo in a code you create | Processed on the device. Not uploaded. |
| Scan history and created codes | So you can find a code again, mark favorites, or export to CSV | Stored in the app's private storage on your phone. "Clear history" in the app or uninstalling removes it. |
| Settings (vibration, beep, language, etc.) | To remember your preferences | Stored on the device only. |
Content you scan (links, Wi-Fi details, contacts, text) is shown to you and acted on only when you tap a button, for example "Open in browser" or "Connect". The app never opens links automatically unless you turn that option on in Settings.
3. Third-party services
The app includes the following services from Google. Each collects data under its own privacy policy, generally a device identifier, coarse device and app information, and interaction events.
- Firebase Analytics – collects anonymous usage events (for example "a code was scanned", "a code was created", which screens are used) so we can improve the app. These events never contain the content of your codes. Firebase privacy
- Google Play In-App Review – shows Google's rating dialog when you choose to rate the app.
4. Permissions
| Permission | Used for |
|---|---|
| Camera | Reading codes. The app does not work as a scanner without it; you can still read codes from images. |
| Internet / network state | Sending analytics and opening links you tap. |
| Wi-Fi state / change Wi-Fi state | Connecting to a network when you scan a Wi-Fi QR code and tap "Connect". |
| Vibrate | A short buzz when a code is read (can be turned off). |
5. Data retention and deletion
Everything the app stores lives on your device. Delete your history from History → ⋮ → "Clear history", or uninstall the app to remove all app data. Data held by Google services is retained according to their policies (Firebase Analytics data is kept for at most 14 months). You can manage Google data at myaccount.google.com.
6. Children
The app is a general-purpose utility and is not directed at children under 13. We do not knowingly collect personal information from children.
7. Security
The app does not transmit your scanned content. Communication with Google services uses encrypted connections (HTTPS).
8. Changes to this policy
If the app's behaviour changes in a way that affects your data, this page will be updated and the date at the top revised. Significant changes will also be noted in the app's release notes.
9. Contact
Questions or requests about privacy: quoccuongdnbk@gmail.com