1. Introduction
Steven Huang ("we," "us," or "our") operates the Quiz King mobile application (the "App"), available on iOS and Android platforms (Bundle ID: com.hsiangyu.quizkingtw). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our App.
By downloading, installing, or using the App, you agree to the collection and use of information in accordance with this Privacy Policy. If you do not agree with the terms of this Privacy Policy, please do not use the App.
2. Information We Collect
2.1 Information You Provide
- Account Information: When you sign in using Google or Apple, we receive your name, email address, and profile information from the authentication provider. You may also use the App anonymously without providing personal information.
- Display Name: You may set or update a custom display name within the App.
- Avatar Selection: You may choose an avatar icon from a predefined set. No custom images are uploaded.
2.2 Information Collected Automatically
- Usage Data: Game statistics including challenge scores, streak records, and leaderboard rankings.
- Device Information: Device model, operating system version, and unique device identifiers (collected by third-party advertising services).
- Advertising Identifiers: Device advertising ID (IDFA on iOS, GAID on Android) for personalized advertisements, subject to your consent.
- IP Address: Your IP address may be collected by Google AdMob for the purpose of delivering ads.
2.3 Information Stored Locally
- App Preferences: Settings such as text-to-speech preferences and best scores are stored locally on your device using SharedPreferences.
- Quiz Content: Quiz questions are cached locally on your device for offline access.
2.4 Information from Third-Party Sources
- Google Sign-In: Name, email address, and profile photo URL (if you choose to sign in with Google).
- Apple Sign-In: Name and email address (if you choose to sign in with Apple). Apple may provide a private relay email address based on your preference.
3. How We Use Your Information
We use the information we collect to:
- Provide Core Functionality: Manage your account, authenticate your identity, and synchronize your game data across devices.
- Track Progress: Display your game progress, scores, streak records, and leaderboard rankings.
- Display Advertisements: Serve banner and rewarded advertisements through Google AdMob to support the free availability of the App.
- Improve the App: Detect and prevent technical issues and improve the App's functionality.
- Comply with Law: Comply with legal obligations.
4. Third-Party Services
Our App uses the following third-party services that may collect information:
4.1 Google Firebase (Authentication & Cloud Firestore)
Used for user authentication and storing user profiles, game statistics, and leaderboard data. Firebase may collect device information and usage data.
Privacy Policy: https://firebase.google.com/support/privacy
4.2 Google AdMob
Used to display banner and rewarded advertisements. AdMob may collect device identifiers and usage data for ad personalization. On iOS 14.5+, personalized ads require your explicit consent through Apple's App Tracking Transparency (ATT) prompt. If you do not grant consent, only non-personalized ads will be shown.
For more information about how Google collects and uses data, please review:
4.3 Google Sign-In
Used for account authentication. Collects name, email address, and profile photo URL.
Privacy Policy: https://policies.google.com/privacy
4.4 Apple Sign-In
Used for account authentication on iOS devices. Collects name and email address.
Privacy Policy: https://www.apple.com/legal/privacy/
4.5 Google Fonts
Used to load the Noto Sans TC font. Font requests may be logged by Google.
Privacy Policy: https://policies.google.com/privacy
4.6 Cloudflare
Quiz content is served from Cloudflare R2 storage.
Privacy Policy: https://www.cloudflare.com/privacypolicy/
5. Data Sharing and Disclosure
We do not sell your personal information. We may share your information in the following circumstances:
- Service Providers: With third-party service providers (Firebase, AdMob) who process data on our behalf to provide the App's functionality.
- Advertising Partners: Device advertising identifiers are shared with Google AdMob for the purpose of displaying advertisements. You may opt out of personalized ads through your device settings or by declining the App Tracking Transparency prompt on iOS.
- Leaderboard Data: Your display name, avatar, and game scores are visible to other users on public leaderboards.
- Legal Requirements: When required by law, regulation, or legal process.
- Business Transfers: In connection with a merger, acquisition, or sale of assets.
6. Data Storage and Security
- Cloud Data: User profiles, game statistics, and leaderboard data are stored on Google Firebase (Cloud Firestore) servers.
- Local Data: App preferences (e.g., text-to-speech settings, best scores) are stored locally on your device using SharedPreferences.
- Quiz Content: Quiz questions are cached locally on your device for offline access.
- Security: We implement appropriate technical measures to protect your data, including Firebase Security Rules that restrict data access to authenticated users.
However, no method of electronic storage or transmission is 100% secure, and we cannot guarantee absolute security.
7. Data Retention
- Account Data: We retain your account data for as long as your account is active.
- Account Deletion: You may delete your account at any time through the App's Settings screen. Upon account deletion, your user profile and all associated leaderboard entries are permanently removed from our servers.
- Local Data: Preferences and cached content can be cleared by uninstalling the App.
- Third-Party Data: Anonymized usage data collected by third-party services may be retained according to their respective retention policies.
8. Children's Privacy
Our App is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If we discover that a child under 13 has provided us with personal information, we will promptly delete it.
If you are a parent or guardian and believe that your child has provided personal information through the App, please contact us at the email address below, and we will take steps to address the concern.
9. Advertising and Tracking
- iOS: We use Apple's App Tracking Transparency (ATT) framework to request your permission before tracking your activity across other apps and websites for advertising purposes. You may change this permission at any time in your device's Settings.
- Android: You may opt out of personalized ads through your device's Google Settings > Ads > Opt out of Ads Personalization.
- Ad Networks: Google AdMob may use cookies and similar technologies to deliver relevant advertisements. For more information, visit How Google uses information from sites or apps that use our services.
10. Your Rights
For All Users
- Access your personal data through the App
- Update your display name and avatar
- Delete your account and all associated data
- Opt out of personalized advertising through your device settings
European Economic Area (GDPR)
If you are located in the European Economic Area, you have additional rights under the General Data Protection Regulation (GDPR), including:
- Right to Data Portability: Request transfer of your personal data in a structured, machine-readable format.
- Right to Restrict Processing: Request restriction of processing of your personal data.
- Right to Object: Object to the processing of your personal data.
- Right to Lodge a Complaint: File a complaint with your local data protection supervisory authority.
The legal basis for processing: consent (Art. 6(1)(a) GDPR) for personalized advertising, contract performance (Art. 6(1)(b) GDPR) for account management, and legitimate interests (Art. 6(1)(f) GDPR) for service improvement.
To exercise any of these rights, please contact us at the email address provided below.
California Residents (CCPA/CPRA)
If you are a California resident, you have the right under the California Consumer Privacy Act (CCPA) and the California Privacy Rights Act (CPRA) to:
- Know what personal information is collected, used, and shared.
- Delete personal information held about you.
- Opt out of the sale or sharing of personal information.
- Non-discrimination for exercising your privacy rights.
We do not sell personal information as defined by the CCPA.
Taiwan (Personal Data Protection Act)
If you are located in Taiwan, you have the following rights under the Personal Data Protection Act (個人資料保護法):
- Right to Access: Request access to your personal data (查詢或請求閱覽).
- Right to Correction: Request correction or supplementation (請求補充或更正).
- Right to Cessation: Request cessation of collection, processing, or use (請求停止蒲集、處理或利用).
- Right to Deletion: Request deletion of your data (請求刪除).
To exercise these rights, please contact us using the information provided below.
11. International Data Transfers
Your information may be transferred to and processed in countries other than your country of residence, including the United States (where Google's servers are located). We ensure appropriate safeguards are in place for such transfers in accordance with applicable law.
12. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. Any changes will be reflected by updating the "Last Updated" date at the top of this Privacy Policy. We encourage you to review this Privacy Policy periodically for any changes.
Your continued use of the App after any modifications to this Privacy Policy constitutes your acceptance of such changes.
13. Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us: