Terms of Use

Effective Date: 25 September 2026

Agreement to Terms

By downloading, installing, or using Tesseract ("the App"), you agree to be bound by these Terms of Use. If you do not agree to these terms, do not use the App.

Description of Service

Tesseract is a messaging application that provides:

• End-to-end encrypted messaging
• Accounts that require no phone number, username or profile picture
• Group conversations of up to 200 participants, joined only by invitation
• Messages that expire by default
• Secure communication between participants

The App is provided for personal, non-commercial use.

Acceptable Use

You agree to use Tesseract only for lawful purposes. You may not use the App to:

• Violate any applicable laws or regulations
• Transmit illegal content
• Harass, threaten, or harm others
• Distribute malware or malicious content
• Infringe on the intellectual property rights of others
• Attempt to interfere with or disrupt the App's operation

User Responsibility

You are solely responsible for:

• Your use of the App
• Content you create, send, or share
• Compliance with all applicable laws in your jurisdiction
• Maintaining the security of your device

No Warranty

The App is provided "as is" and "as available" without warranties of any kind, either express or implied, including but not limited to:

• Warranties of merchantability
• Fitness for a particular purpose
• Non-infringement
• Uninterrupted or error-free operation

We do not guarantee that the App will meet your requirements, be available at any particular time, or operate without interruption.

Limitation of Liability

To the maximum extent permitted by law, Kevin Kulcsar shall not be liable for any:

• Indirect, incidental, special, consequential, or punitive damages
• Loss of profits, data, or goodwill
• Service interruptions or failures
• Unauthorized access to or alteration of your communications

This limitation applies regardless of the theory of liability and even if we have been advised of the possibility of such damages.

Encryption Disclaimer

While Tesseract implements end-to-end encryption to protect your messages:

• No security system is perfect or impenetrable
• We cannot guarantee absolute security against all threats
• Security depends partly on proper use and device security
• You should not rely solely on the App for critical security needs

Temporary Nature of Service

By design, messages in Tesseract are temporary. You acknowledge that:

• Messages expire by default, and expired messages are not retained
• There is no message backup, export or recovery
• A message that cannot be delivered immediately is held encrypted on the relay only until it is collected, and is discarded after that
• Conversations may be interrupted by network conditions or app behaviour
• You should not rely on the App for persistent storage of important information

Intellectual Property

Tesseract's source code is published at github.com/keniprimo/SecretR00M under the open-source licence stated in that repository. Your rights to use, study, modify, redistribute and create derivative works from that source are the rights that licence grants you, and nothing in these Terms limits them. Where these Terms and that licence disagree about the source code, the licence governs.

Outside that licence, the following remain reserved:

• The Tesseract name, logo and branding, which are not licensed under the GPL and may not be used to imply endorsement by, or affiliation with, this project
• Distributing a modified build under the Tesseract name, or in a way likely to be mistaken for the official app

Termination

We reserve the right to:

• Modify or discontinue the App at any time without notice
• Block access to the service if these terms are violated

You may stop using the App at any time by uninstalling it from your device.

Changes to Terms

We may update these Terms of Use from time to time. Changes will be posted on this page with an updated effective date. Your continued use of the App after changes constitutes acceptance of the revised terms.

Governing Law

These Terms shall be governed by and construed in accordance with applicable laws, without regard to conflict of law principles.

Severability

If any provision of these Terms is found to be unenforceable, the remaining provisions will continue in effect.

Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and Kevin Kulcsar regarding the use of the App.

Contact

For questions about these Terms, please contact us:

Email: kulcsarkevinqpc8@gmail.com