Update Date: March 09, 2026

Effective Date: March 09, 2026

Applicable Region: Global

Sigurd Fencing (hereinafter referred to as “the App”) is developed and operated by Nanjing Infiwalker Information Technology Co., Ltd. (hereinafter referred to as “Infiwalker” or “we”). This App is a professional scoring application for fencing competitions and training, used to connect fencing equipment, record scores, support referee modes and remote control, and manage firmware and application updates. We value and protect your privacy. This policy explains how we collect, use, store, and protect your information. Please read it carefully; use of the App indicates agreement to this policy.

1. Information We Collect

We collect only the information necessary to implement core service functions:

1.1 Necessary Functional Information

Device Identifiers: Used for checking updates and reporting firmware upgrade status (Android uses Device ID; iOS uses vendor-related identifiers).

Application Version: Used to determine compatibility and update availability.

Language Preference: Saved only locally on your device to display Chinese or English.

Bluetooth Data: Used for discovering and connecting to fencing equipment; processed locally and not used for personal identification.

Fencing Equipment Info: Includes device name, ID, battery level, firmware version, and thresholds; used locally for scoring and management.

1.2 Operation and Troubleshooting

Error and Exception Data: Collects error titles, descriptions, and operational context to improve stability.

Local Logs: Saved locally for approximately 7 days; only leave the device if you choose to share them via “Feedback”.

1.3 User-Provided or Generated Information

Camera and Scanning: Used to recognize device QR codes; images are processed locally and not uploaded.

Instructions Page: Loaded via WebView; subject to the privacy policy of the page provider.

Sharing and Storage: Data shared via system functions or “Feedback” is handled by your chosen recipient; we do not actively collect this content.

2. Permissions and Usage

The App may request the following permissions:

Bluetooth: For scanning and connecting to fencing equipment.

Location: Required by some Android versions for Bluetooth scanning; not used for tracking.

Camera: For scanning device QR codes.

Local Network: For device discovery and configuration (e.g., iOS).

Storage/Installation: For downloading and installing app updates (e.g., APKs).

Photos: Used when selecting or saving images (e.g., iOS).

Note: Disabling permissions may limit functionality but will not affect local settings like language.

3. Sharing, Transfer, and Disclosure

Sharing: Necessary data (identifiers, version numbers) may be shared with service providers for OTA updates or error monitoring under contract.

Transfer: In the event of a merger or asset transfer, we will require the successor to uphold this policy.

Disclosure: We do not publicly disclose information unless required by law, government investigation, or with your explicit consent.

4. How We Store and Protect Information

4.1 Storage Location

Personal information and pet-related data collected are stored on compliant cloud servers in Mainland China (e.g., Alibaba Cloud, Tencent Cloud). For international users, data may be transferred to servers in your region following strict compliance with laws like the PIPL (China) and GDPR to ensure security. Data centers will comply with GDPR/CCPA standards.

4.2 Storage Period

Information is stored for the shortest period necessary to achieve the service purposes:

• Local Storage: Language preferences and logs are saved only on your device and are not actively synced to our servers.
• OTA/Reporting Data: Retained for the period necessary for business and compliance needs.
• Error Data: Retained according to the policies of the services we use.
• Logs: Local logs are kept for approximately 7 days and cleared automatically; exported logs are managed by you.

4.3 Storage Security and Measures

We use industry-standard security technologies, including:

• Encrypted transmission (HTTPS/TLS).
• Encryption or de-identification of sensitive data.
• Access controls, multi-factor authentication, and security audits.

5. Protection of Minors

This App is primarily intended for fencing scenarios. We do not knowingly collect personal information from children/minors as defined by your local laws. If you believe we have collected such info, please contact us for immediate deletion.

6. International Users

• EU: We comply with GDPR requirements, including lawful use, consent management, and rights to data export/deletion.
• USA: We comply with CCPA/CPRA regarding data transparency, the right to opt-out of sales, access, and deletion.

7. Updates to This Policy

We may update this policy to adapt to legal or business changes. For significant changes, we will notify you via App notifications or pop-ups.

8. Contact Us

For questions, suggestions, or complaints, please contact us at:

• Company: Nanjing Infiwalker Information Technology Co., Ltd.
• Address: Room 801, Lehui Mansion, Jiangning District, Nanjing, Jiangsu Province
• Email: jingfeng@infiwalker.com

Effective as of March 9, 2026.