Privacy Policy

Last updated: January 25, 2026

Welcome to Cipheus. We are committed to protecting your personal information and your right to privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application.

1. Information We Collect

We collect information that you provide directly to us when you:

• Create an account using Apple Sign-In or Google Sign-In
• Set up your profile (username, display name, profile picture)
• Send messages to other users
• Add friends or accept friend requests
• Create or use language packs

2. How We Use Your Information

We use the information we collect to:

• Provide, maintain, and improve our services
• Process and deliver messages between users
• Send you push notifications about new messages and friend requests
• Provide customer support
• Detect and prevent fraud or abuse

3. Message Privacy

Your messages are stored securely on our servers. The cipher transformation happens on your device, meaning:

• Messages are stored in their original form on our servers
• The cipher encoding/decoding happens locally on your device
• Only users with the same language pack can view the decoded messages

4. Data Sharing

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

• With your consent
• To comply with legal obligations
• To protect our rights, privacy, safety, or property
• With service providers who assist in our operations (subject to confidentiality agreements)

5. Data Security

We implement appropriate technical and organizational security measures to protect your personal information. However, no method of transmission over the Internet or electronic storage is 100% secure.

6. Your Rights

You have the right to:

• Access your personal information
• Correct inaccurate information
• Delete your account and associated data
• Export your data
• Opt-out of push notifications

7. Account Deletion

You can delete your account at any time through the Settings menu in the app. When you delete your account:

• Your profile information will be permanently deleted
• Your messages will be removed
• Your friendships will be dissolved
• Any co-created language packs will remain available to the co-creator

8. Children's Privacy

Cipheus is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

10. Contact Us

If you have any questions about this Privacy Policy, please contact us at:

Email: privacy@cipheus.app