Privacy Policy for eXpert Notes

Last Updated: January 17, 2026

This Privacy Policy describes how eXpert Notes ("we", "our", or "us") collects, uses, and shares information when you use our mobile application ("App").

By using the App, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

1.1 Personal Information

When you register and use eXpert Notes, we collect the following personal information:

Information	Purpose	Required
Phone Number	Account registration, authentication via OTP, and unique user identification	Yes
Full Name	Personalization and user identification	Yes

1.2 Usage Data

We automatically collect certain information when you use the App:

• Favorites: Documents you mark as favorites for quick access
• View History: Anonymous aggregate view counts on documents (not linked to individual users)
• Interaction Data: Likes on documents (anonymous aggregate counts)

1.3 Information We Do NOT Collect

2. How We Use Your Information

We use the collected information for the following purposes:

• Authentication: To verify your identity using OTP (One-Time Password) sent to your phone number
• Account Management: To create and maintain your user account
• Personalization: To save your favorite documents and preferences
• Service Delivery: To provide access to educational PDF documents
• Service Improvement: To understand usage patterns through anonymous aggregate statistics

3. Data Storage and Security

3.1 Where Your Data is Stored

• Local Storage: Your phone number and name are stored locally on your device for session management
• Cloud Storage: Your account information and favorites are stored securely on MongoDB Atlas cloud servers
• File Storage: Educational PDF documents are stored on secure cloud storage servers

3.2 Security Measures

We implement the following security measures:

• HTTPS encryption for all data transmission between the App and our servers
• OTP-based authentication (no passwords stored)
• Secure cloud infrastructure for data storage

4. Third-Party Services

4.1 2Factor (OTP Service Provider)

Purpose	To send OTP codes for phone number verification
Data Shared	Your phone number
Privacy Policy	https://2factor.in/privacy-policy

5. Data Sharing

We do NOT sell, trade, or rent your personal information to third parties.

Your information may be shared only in the following circumstances:

• Service Providers: With 2Factor solely for OTP delivery
• Legal Requirements: If required by law, court order, or governmental authority
• Protection of Rights: To protect our rights, privacy, safety, or property

6. Data Retention

• Account Data: Retained as long as your account remains active
• Local Data: Stored on your device until you log out
• OTP Data: Temporary and automatically deleted after verification

7. Your Rights and Choices

7.1 Access and Update

You can view your account information within the App at any time.

7.2 Data Deletion

To delete your account and associated data:

• Log out from the App to remove locally stored data
• Contact us at the email below to request complete deletion of your server-side data

7.3 Opt-Out

Since we do not use tracking or advertising services, there is no tracking to opt out of.

8. Children's Privacy

eXpert Notes is intended for general audiences and is not directed at children under 13 years of age. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

9. Permissions

The App requires the following permissions:

Permission	Purpose
Internet	Required to connect to our servers, authenticate users, and download documents
Network State	Required to check internet connectivity status

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by:

• Posting the new Privacy Policy within the App
• Updating the "Last Updated" date at the top of this policy

You are advised to review this Privacy Policy periodically for any changes.

11. Contact Us

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

12. Consent

By using eXpert Notes, you consent to:

• The collection and use of your information as described in this Privacy Policy
• The transfer of your information to our servers and third-party service providers as described above

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This Privacy Policy is effective as of January 17, 2026.