Secret Fort Terms of Service

Article 1 (Acceptance of These Terms)

1. These Terms of Service ("Terms") set forth the conditions for using Secret Fort (the "App"). You may use the App only if you agree to all provisions of these Terms.

2. By installing or using the App, you are deemed to have agreed to these Terms.

3. If you do not agree to these Terms, immediately stop using the App and uninstall it.

Article 2 (Nature of the Service)

1. The App is an application that encrypts and manages confidential information, such as passwords, on your device.

2. The App uses a zero-knowledge design. All encryption and decryption take place on your device. The service provider cannot learn your master password or the contents of your data, and has no means to recover them.

3. The service provider operates no server that stores your data. Your data exists only on your device and, if you enable cloud sync, in the cloud storage service you yourself subscribe to.

Article 3 (Understanding the Technical Specifications)

1. The App's security and functional limitations follow from the technical characteristics described in Article 2. You agree to use the App only after reviewing and understanding how it works, its encryption scheme, and the conditions and limits of data recovery, as described in the in-app tutorial, the FAQ, and the technical specifications published on the official website.

2. Any disadvantage arising from using the App without the review and understanding described in the preceding paragraph (including the inability to recover data due to a lost master password) shall be borne by you.

Article 4 (Master Password Management)

1. You are solely responsible for setting and managing your master password.

2. Due to the zero-knowledge design, if you lose your master password there is no way to recover your data. The service provider cannot reissue or recover your password, or restore your data, by any means.

3. Any disadvantage arising from the loss, leakage, or third-party use of your master password shall be borne by you.

Article 5 (Your Responsibilities)

1. You are responsible for managing your devices and your cloud storage accounts.

2. You are responsible for maintaining appropriate backups of important data.

3. Cloud storage services are provided by third parties, and the service provider is not involved in their provision. Any disadvantage arising from their availability, specification changes, outages, or data loss shall be borne by you.

Article 6 (Publication of External Decryption Specifications)

1. The service provider publishes, on the official website or elsewhere, technical specifications for decrypting the App's stored data without the App.

2. This publication is provided for informational purposes and does not guarantee the success of your own decryption efforts or any other particular outcome.

Article 7 (Prohibited Conduct)

When using the App, you must not:

(1) use the App for purposes that violate laws or public order and morals;

(2) tamper with the App or circumvent its security mechanisms by improper means;

(3) store data that infringes the rights of third parties; or

(4) engage in any other conduct the service provider reasonably deems inappropriate.

Article 8 (No Warranty)

1. The App is provided "as is." The service provider makes no warranty of any kind, express or implied, including as to accuracy, completeness, usefulness, fitness for a particular purpose, freedom from errors or interruptions, or the absence of security defects.

2. Protective features such as automatic clipboard clearing and screenshot suppression are not guaranteed to work completely due to operating system constraints.

Article 9 (Disclaimer and Limitation of Liability)

1. Except in cases of willful misconduct or gross negligence by the service provider, the service provider accepts no liability for damages you incur arising from use of, or inability to use, the App, including loss or corruption of data, lost profits, and indirect, special, or consequential damages.

2. Even where the service provider is held liable under the Consumer Contract Act or other mandatory law, its liability is capped at the amount you have paid to the service provider as consideration for the App up to the time the damage arose (zero if you use the App free of charge).

3. Disputes between you and any third party shall be resolved at your own responsibility and expense; the service provider will not be involved.

4. Individual provisions elsewhere in these Terms concerning disclaimers or the allocation of responsibility are declaratory only and do not limit the scope of the disclaimer and limitation of liability under this Article.

Article 10 (Changes to and Termination of the Service)

1. The service provider may change the App, stop updating it, or terminate its provision without prior notice.

2. Even after termination, you can retrieve your data yourself using the encrypted files on your device and in your cloud storage together with the specifications published under Article 6.

Article 11 (Amendment of These Terms)

1. The service provider may amend these Terms when it deems necessary.

2. Amended Terms take effect when posted in the App or on the official website. By using the App after posting, you are deemed to have agreed to the amended Terms.

Article 12 (Governing Law and Jurisdiction)

1. These Terms are governed by and construed in accordance with the laws of Japan.

2. Any dispute arising in connection with the App shall be subject to the exclusive jurisdiction of the district court having jurisdiction over the location of the service provider's head office, as the court of first instance.

Article 13 (Governing Language)

The Japanese text of these Terms is the official, governing text. Translations into English or any other language are provided for reference only. In the event of any discrepancy or difference between the Japanese text and a translation, the Japanese text shall prevail.

Effective date: July 18, 2026