QR Sense Privacy Policy
Effective date: April 22, 2026
QR Sense is a mobile application by Secret App. This Privacy Policy explains
how QR Sense handles information when you use the app.
Summary
QR Sense is designed to work primarily on your device.
• QR Sense does not require you to create an account.
• QR Sense does not provide cloud sync for your saved data.
• QR Sense does not sell personal data.
• Scan history, generated QR codes, favorites, folders, and settings are stored
locally on your device.
• WiFi passwords are not stored in History or Favorites.
Information Handled by QR Sense
Depending on how you use the app, QR Sense may handle the following categories
of information on your device:
• QR code content that you scan with your camera or import from an image
• QR code content that you create in the app
• App data you choose to save locally, such as History, Favorites, folders, and
settings
• Device authentication status used for the optional app lock feature
QR Sense is designed to work primarily on your device. In addition, limited
diagnostic, advertising, and analytics-related data may be collected by
third-party services used by the app, as described below.
Camera Permission
QR Sense requests camera access so you can scan QR codes and barcodes. Camera
access is used only for scanning and is not used for unrelated purposes.
If you do not grant camera permission, you can still use parts of the app that
do not require camera access, such as generating QR codes and viewing saved
items.
Photos, Gallery, and Saved Images
QR Sense can save generated QR images to your photo library or gallery when you
choose "Save PNG."
QR Sense requests photo library or gallery access only when needed for a
feature you choose, such as importing an image to scan or saving a generated QR
image.
QR Sense does not read, scan, upload, or sync your existing photo library for
background profiling or unrelated purposes.
If you use scan-from-gallery features, image processing is performed only to
read the code from the image you selected.
On supported Android versions, exported images may be saved using platform media
APIs. On older Android versions, storage permission may be requested only when
needed to save an image.
Sharing
QR Sense can share generated QR images or content only when you choose a Share
action. Shared data is sent to the destination you select using your device's
system sharing tools.
Local Storage
QR Sense stores the following information locally on your device:
• Scan history
• Generated QR codes
• Favorites
• Folders
• App settings
Local app data is stored using encrypted on-device storage. Encryption keys are
kept on the device using platform-provided secure storage where available.
History and Favorites remain on the device until you delete them in the app or
remove the app, subject to any retention settings you choose inside the app.
Optional Device Authentication
QR Sense includes an optional app lock feature that can require device
authentication, such as biometrics or your device passcode, before allowing
access to protected content.
QR Sense does not receive your biometric data. Authentication is handled by your
device's operating system and related platform services.
WiFi QR Codes
If you scan or create a WiFi QR code, QR Sense is designed not to store the
WiFi password in History or Favorites.
Saved WiFi items retain only the information needed for the feature, such as:
• QR type
• network name
• security type
• sanitized QR content without the WiFi password
Advertising
QR Sense uses Google AdMob and the Google Mobile Ads SDK to display ads.
Google and its partners may collect or receive information such as:
• IP address
• device and advertising identifiers
• app interactions
• ad interactions
• diagnostic information
• approximate location or other information derived by Google's services, where
applicable under their policies and your device settings
This data may be used for advertising, measurement, fraud prevention, security,
and service reliability.
On iOS, QR Sense may also request permission to use the system advertising
identifier for advertising and measurement purposes, depending on your region,
device settings, app configuration, and the consent or privacy choices made
available to you.
For more information about how Google handles data, review Google's policies:
• https://policies.google.com/privacy
• https://policies.google.com/technologies/ads
Advertising behavior may also depend on your region, device settings, Google
settings, and any consent or privacy choices made available to you.
Analytics
QR Sense includes support for Firebase Analytics. Firebase Analytics is not
active in every build. It is enabled only in production builds that are
configured for analytics.
When enabled, analytics events may include information such as:
• app opens
• app sessions
• screen views
• feature usage
• first completed action
• certain device permission states
• completed scans
• generated QR codes
• ad impressions and ad clicks
QR Sense is designed not to send the following values as Firebase Analytics
event parameters:
• QR contents
• scanned text
• URLs
• phone numbers
• contact details
• WiFi passwords
• WiFi SSIDs
Analytics data is processed by Google under Firebase and Google policies. For
more information, see:
• https://firebase.google.com/support/privacy
• https://policies.google.com/privacy
No Account and No Cloud Sync
QR Sense does not require user accounts and does not provide cloud-based account
storage or sync for your saved History, Favorites, folders, or generated QR
codes.
Data Sharing
QR Sense does not sell personal data.
QR Sense may share limited information with service providers only as needed to
operate third-party services used by the app, such as advertising and analytics
providers described in this policy.
Data Retention
Locally stored data remains on your device until:
• you delete it in the app
• your chosen retention settings remove eligible items
• you uninstall the app
Data handled by third-party providers such as Google AdMob or Firebase may be
retained according to their own policies.
Your Choices
Depending on your device, region, and app version, you may be able to:
• deny camera permission
• deny photo library access
• decline notification permission, where applicable
• review or change ad privacy choices presented in the app, where available
• manage advertising or privacy settings on your device
• review or change tracking-related permissions on your device, where supported
• enable or disable the optional app lock
• delete History, Favorites, generated QR codes, or other saved items inside
the app
• uninstall the app to remove locally stored app data from your device
Children's Privacy
QR Sense is not directed to children under 13, and we do not knowingly sell
their personal data. If you believe a child provided information in a way that
creates a privacy issue, contact us using the details below.
International Users
Depending on where you use QR Sense, your information may be processed by
third-party providers in countries other than your own, subject to those
providers' terms, safeguards, and policies.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. If we make material
changes, we will update the effective date above and may provide additional
notice where required.
Contact
For privacy questions, data protection requests, or support, contact:
• Secret App
• Email: secretapplab@gmail.com
• Website: https://secretapplab.github.io/qr-sense-privacy/