Last Updated: February 9, 2025

Textin values user privacy and is committed to providing the highest level of data security. This Privacy Policy outlines how we handle user data and the measures we take to protect user privacy.

Information We Collect

Textin follows a Zero-Data Collection principle. We do not collect, store, or transmit any user personal data, including but not limited to, the following:

• Identity Information: Email addresses, phone numbers, usernames, or any other personally identifiable information.
• Identifiers: Device identifiers, IP addresses, location data, or any device-related tracking information.
• User Data: Any encrypted or decrypted content entered by the user.

Data Storage & Security

Textin employs End-to-End Encryption (E2EE) and Local Data Storage to ensure absolute security of user data:

• Private Key Management: Users' private keys are stored exclusively on their local devices. Textin does not have access to, store, or recover lost keys.
• Local Encryption Processing: All encryption and decryption operations occur exclusively on the local device; no data is transmitted to servers or cloud storage.
• No Data Sharing: Textin does not share any user information with third parties, including analytics companies, advertisers, or governmental entities.

Encryption Technologies

Textin utilizes industry-standard encryption protocols to ensure data security:

• Curve25519 for key exchange.
• ChaChaPoly for symmetric encryption.
• SHA-512 for data integrity verification.