Your privacy matters. We built Just Lecture to help students access quality lecture content. This policy explains exactly what we collect, why, and how it is protected. We do not sell your personal information — ever.
1. Who We Are
Just Lecture ("we," "us," or "our") is an educational Android application that aggregates lecture video content to help students study more effectively. References to "the App" mean the Just Lecture Android application and its supporting backend services.
For privacy-related questions, contact us at: justlectureapp@gmail.com
2. Information We Collect
We collect only the minimum information necessary to provide the service.
2.1 Information You Provide Directly
| Data | When Collected | Why |
|---|---|---|
| Full name | Google Sign-In | Display in your profile |
| Email address | Google Sign-In | Account identification; service communications |
| Google profile picture URL | Google Sign-In | Display in your profile |
| Phone number | Profile setup screen | Account verification and support contact |
| Course / category selection | Onboarding & profile screen | Personalise the content shown on your home feed |
2.2 Information Collected Automatically
| Data | How Collected | Why |
|---|---|---|
| Last-played video (video ID, title, playlist, channel, timestamp) | Saved locally on device when you watch a lecture | Resume playback from where you left off |
| Authentication tokens (JWT access + refresh tokens) | Issued by our backend on login | Keep you signed in securely without re-entering credentials |
| Network connectivity state | Android system (ACCESS_NETWORK_STATE permission) | Gracefully handle offline states and show appropriate errors |
2.3 Information We Do NOT Collect
- Device location or GPS data
- Contacts, camera, or microphone access
- Files stored on your device
- Browsing history outside the App
- Advertising identifiers or tracking cookies
- Biometric data of any kind
3. How We Use Your Information
We use the information we collect solely to operate and improve Just Lecture:
- Authentication: Verifying your identity via Google Sign-In and maintaining a secure session.
- Personalisation: Showing lecture content relevant to your selected course or category.
- Playback continuity: Resuming lectures from your last watched position.
- App performance: Caching content locally so the app is fast and responsive.
- Notifications: Sending study-focus reminders if you have granted notification permission (see Section 6).
- Support: Responding to your questions and troubleshooting issues.
We do not use your data for advertising, profiling, or automated decision-making that produces legal or similarly significant effects.
4. Data Storage & Security
On your device
Session data (tokens, name, email, phone, category preference, last-played video) is stored in AES-256-GCM encrypted SharedPreferences using the Android Security library. This data never touches unencrypted disk storage. If the encrypted store cannot be initialised (e.g. after a device key corruption), we create a fresh encrypted store — meaning you will need to log in again. We never silently fall back to plaintext storage on disk.
On our servers
Your account data (name, email, phone, course selection) is stored on our backend servers. Our servers use industry-standard practices including encrypted connections (HTTPS/TLS) for all data in transit.
Video content
Lecture videos are served via YouTube. Our backend acts as a proxy to retrieve video metadata and stream URLs; it does not permanently store video content. Responses are cached briefly for performance and to stay within API rate limits.
5. Third-Party Services
The App integrates with the following third-party services. Each has its own privacy policy governing how they process your data.
| Service | Purpose | Data Shared |
|---|---|---|
| Google Sign-In (Google LLC) | Authentication | Google account ID token; name & email returned to us |
| YouTube / Google APIs (Google LLC) | Lecture video content | Video IDs requested; no personal data sent directly to YouTube by the App |
| Glide (open-source image library) | Loading profile pictures | Profile picture URL (fetched from Google CDN) |
Google's privacy policy is available at policies.google.com/privacy. YouTube's terms are available at youtube.com/t/terms.
We do not sell, rent, or share your personal information with any third party for marketing or advertising purposes.
6. Push Notifications
Just Lecture may request permission to send you push notifications. These notifications are used exclusively for study-focus reminders — for example, reminding you to return to a lecture you were watching. We do not send promotional, advertising, or third-party marketing notifications.
You can revoke notification permission at any time in your device's Settings → Apps → Just Lecture → Notifications. Revoking permission does not affect any other app functionality.
7. Data Retention
We retain your account data for as long as your account is active. If you request deletion of your account (see Section 8), we will delete your personal data from our servers within 30 days.
Locally stored data on your device (session tokens, cached preferences) is cleared immediately when you log out via the app's Profile screen.
8. Your Rights
You have the following rights regarding your personal data:
- Access: Request a copy of the personal data we hold about you.
- Correction: Update your name or course selection at any time via the Profile screen in the App.
- Deletion: Request deletion of your account and all associated personal data. Contact us at justlectureapp@gmail.com.
- Portability: Request your data in a machine-readable format.
- Opt out of notifications: Revoke notification permission through device settings at any time.
To exercise any of these rights, email us at justlectureapp@gmail.com. We will respond within 30 days.
9. Children's Privacy
Just Lecture is intended for users aged 13 and older. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information without your consent, please contact us at justlectureapp@gmail.com and we will promptly delete the information.
10. Changes to This Policy
We may update this Privacy Policy from time to time. When we do, we will update the "Last updated" date at the top of this page. For significant changes, we will notify you via a prominent notice within the App or by email.
Continued use of Just Lecture after changes are published constitutes your acceptance of the revised policy.
11. Contact Us
If you have any questions, concerns, or requests about this Privacy Policy or how we handle your data, please reach out:
- Email: justlectureapp@gmail.com
- App: Just Lecture (Android)
We aim to respond to all privacy inquiries within 30 days.