Privacy Policy for QR Master
Last updated: April 27, 2026
Kabushiki Kaisha Daisen ("we," "our," or "us") built the QR Master app as a Free app supported by advertising. This SERVICE is provided at no cost and is intended for use as is.
This page is used to inform visitors regarding our policies with the collection, use, and disclosure of Personal Information if anyone decides to use our Service.
INFORMATION COLLECTION AND USE
QR Master does not require user registration or login. We do not collect personal information such as your name, email address, or phone number on our servers.
However, the app uses third-party services that may collect information used to identify you:
- Google AdMob (Advertising)
- On Android: collects the Advertising ID (AAID) to serve personalized ads.
- On iOS: may access the Identifier for Advertisers (IDFA) if the user grants App Tracking Transparency (ATT) permission. Users may decline this at any time via iOS Settings > Privacy & Security > Tracking.
- Users can opt out of personalized advertising on Android via device settings, and on iOS via the ATT permission prompt.
- Google User Messaging Platform (Consent Management)
- Used to gather user consent for personalized advertising in regions where consent is legally required (e.g., GDPR in the EU).
- Google Play Services (Android only)
- Used for core app functionality and ad delivery.
- Apple StoreKit & App Store (iOS only)
- Used for in-app purchases and subscription verification. We never receive or store your payment card information.
For more information on how Google collects and processes data, please visit:
https://policies.google.com/privacy
For information on how Apple processes data, please visit:
https://www.apple.com/legal/privacy/
DEVICE PERMISSIONS
The app may request the following permissions:
- Camera: Required for scanning QR codes.
- Photo Library (iOS) / Storage (Android): Used to save QR code images you generate to your device, and to read images from your photo library for QR code recognition.
- Internet access: Required for displaying advertisements and in-app purchases. The content of QR codes you generate or scan is never transmitted over the internet.
- App Tracking Transparency (iOS 14+): Optional. Requested solely to serve more relevant advertisements. You may decline this request with no impact on app functionality.
DATA WE DO NOT COLLECT
We do not collect, store, or transmit the content of QR codes you scan or generate. All QR code processing happens locally on your device.
We do not collect location information.
We do not collect health, biometric, or financial data.
We do not collect contact lists, calendar data, or messages.
We do not share any user data with parties other than the services listed above.
SUBSCRIPTION SERVICE
QR Master offers optional Pro features through Apple In-App Purchase (iOS) and Google Play Billing (Android). Subscription status is associated with your Apple ID or Google account, not your personal identity.
- QR Master Pro Monthly: US$2.99 per month, auto-renewing
- QR Master Pro Yearly: US$19.99 per year, auto-renewing, with a 3-day free trial for new subscribers
- QR Master Pro Lifetime: US$39.99 one-time purchase, non-renewing
- Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period
- You may manage or cancel your subscription at any time through your Apple ID account settings (iOS) or Google Play account settings (Android)
CHILDREN'S PRIVACY
QR Master does not knowingly collect personally identifiable information from children under 13. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us so that we can take appropriate action.
CHANGES TO THIS PRIVACY POLICY
We may update our Privacy Policy from time to time. You are advised to review this page periodically for any changes. Changes are effective immediately upon being posted on this page.
CONTACT US
If you have any questions or suggestions about our Privacy Policy, please contact us at:
Email: ccjiao30@gmail.com
Kabushiki Kaisha Daisen (株式会社大錢)
Osaka, Japan