← Back to Home

Privacy Policy

Last updated: June 22, 2026

Introduction

Welcome to StudyNinja ("we," "our," or "us"). We are committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and related services.

Summary: We only collect data necessary to provide our quiz learning service. We do not sell your data to third parties.

Information We Collect

Information You Provide

  • Account Information: When you create an account, we collect your name, email address, and password (encrypted).
  • Profile Information: You may optionally provide a profile picture and display name.
  • Quiz Data: Your quiz attempts, scores, answers, and progress are stored to provide personalized learning experiences.

Information Collected Automatically

  • Device Information: Device type, operating system version, and unique device identifiers for app functionality.
  • Usage Data: How you interact with the app, including quizzes taken, time spent, and features used.
  • Log Data: Error logs and crash reports to improve app stability.

Information from Third Parties

  • Google Sign-In: If you choose to sign in with Google, we receive your name, email address, and profile picture from Google. We do not access your contacts, calendar, or any other Google services data.

How We Use Your Information

We use the collected information for the following purposes:

  • Provide Services: To create and manage your account, deliver quizzes, track progress, and display leaderboards.
  • Personalization: To recommend quizzes based on your interests and learning history.
  • Communication: To send important account notifications, password resets, and optional learning reminders.
  • Improvement: To analyze usage patterns and improve our app's features and performance.
  • Security: To detect and prevent fraud, abuse, and security threats.

Data Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties. We may share your information only in the following circumstances:

  • Leaderboards: Your display name and scores may be visible to other users on public leaderboards.
  • Service Providers: We use trusted third-party services for hosting, analytics, and email delivery. These providers are bound by confidentiality agreements.
  • Legal Requirements: We may disclose information if required by law or to protect our rights and safety.

Data Security

We implement industry-standard security measures to protect your data:

  • All data transmission is encrypted using HTTPS/TLS.
  • Passwords are hashed using secure algorithms and never stored in plain text.
  • Access to user data is restricted to authorized personnel only.
  • Regular security audits and updates are performed.

Data Retention

We retain your personal information for as long as your account is active or as needed to provide services. If you delete your account, we will delete or anonymize your personal data within 30 days, except where retention is required by law.

Your Rights and Choices

You have the following rights regarding your data:

  • Access: You can view your profile and quiz history within the app.
  • Update: You can update your profile information at any time.
  • Delete: You can request deletion of your account and associated data through the app or by visiting our account deletion page.
  • Export: You can request a copy of your data by contacting us.

Children's Privacy

StudyNinja is intended for users of all ages. We do not knowingly collect personal information from children under 13 without parental consent. If you believe we have collected information from a child under 13, please contact us immediately.

Advertising and Cookies

We use Google AdSense to display advertisements on our website. Google AdSense uses cookies to serve ads based on your prior visits to our website or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and/or other sites on the Internet.

Cookie Consent: By using our website, you consent to the use of cookies for advertising purposes. You may opt out of personalized advertising by visiting Google Ads Settings.

Third-party vendors, including Google, use cookies to serve ads based on your prior visits to our website. You can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info.

Third-Party Services

Our app and website may use the following third-party services:

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy in the app and updating the "Last updated" date. Your continued use of the app after changes constitutes acceptance of the updated policy.

Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us: