1. Introduction
Welcome to the "TsunCtrl" application (hereinafter referred to as "this App"). This App primarily provides users with Bluetooth controller connection, configuration, and management services, suitable for programmable Bluetooth controllers on electric scooters, e-bikes, and similar devices.
You can use the core features of this App (such as Bluetooth controller connection and configuration) without registration or login. Login is optional and only required if you wish to access personalized services (such as warranty, device binding, etc.).
We take your privacy very seriously. This Privacy Policy is designed to explain how we collect, use, store, and protect your personal information. Please read this policy carefully before using this App.
Effective Date: May 14, 2026
2. Information We Collect
To provide you with complete service functionality, we may collect the following types of information:
2.1 Account & Identity Information (Optional)
The following information is only collected when you voluntarily choose to log in. You can use the core features of this App without logging in:
- Phone Number: Used for login verification (only collected if you choose to log in)
- WeChat Account Information: When you choose to log in via WeChat, we obtain your WeChat OpenID and basic profile
- Username/Nickname: Used for personalized display
- Location Data: Province, city, district — used for regional services
2.2 Device & Hardware Permissions
- Bluetooth: Used to search, connect, and control Bluetooth controller devices. This is essential for the core functionality of this App
- Location: Android requires location permission for Bluetooth scanning. Location data is only used to assist Bluetooth device discovery and is not used to track your movements
- Camera: Used for scanning device QR codes for warranty registration and related functions
- Phone State: Used to identify device status and ensure normal app operation
2.3 Network Information
- Network State: Used to check network connectivity and ensure data transmission
- Wi-Fi State: Used to assist with network connection management
2.4 Usage Data
- Bluetooth device connection records and controller configuration data
- Device firmware version information and OTA upgrade records
- Application operation logs (for troubleshooting and experience optimization)
3. How We Use Your Information
The information we collect is used for the following purposes:
- Core Services: Enabling Bluetooth controller search, connection, configuration, and data interaction (no login required)
- Account Management: Managing your user account and authentication services when you choose to log in
- Device Management: Managing your bound controller devices, recording device information and configurations
- Warranty Services: Providing device warranty registration and repair services through the QR code scanning feature
- OTA Upgrades: Providing online firmware upgrade services for your controller devices
- Service Optimization: Analyzing usage data to improve app functionality and user experience
- Communication Services: Providing customer service communication and remote technical support
4. Information Storage & Protection
4.1 Storage Method
Your personal information and device data are stored on our servers using secure encryption methods. The servers are located in mainland China. Some configuration data is cached in your device's local storage for quick access and offline use.
4.2 Retention Period
We retain your personal information during your use of this App and for a reasonable period after account deletion. When you delete your account, we will delete or anonymize your personal information within 30 business days.
4.3 Security Measures
- Secure authentication mechanisms such as JWT (JSON Web Token) to protect user identity
- Data transmission encrypted with HTTPS/TLS protocols
- Encrypted storage for sensitive data
- Regular security reviews and vulnerability fixes
5. Information Sharing & Disclosure
Important: We do not sell your personal information to any third party.
We may share your information under the following circumstances:
- Third-Party Service Providers:
- WeChat SDK: For WeChat login and authorization
- Alibaba Cloud OSS: For storing and transmitting media files
- Legal Requirements: As required by laws, regulations, legal proceedings, or mandatory government requests
- Protecting Rights: To protect the rights, property, or safety of TsunCtrl, our users, or the public
6. Your Rights
You have the following rights regarding your personal information:
- Right of Access: If you are logged in, you can view your account information through the "Personal Center" in the app
- Right to Rectification: You can modify and update your personal information at any time
- Right to Deletion: You can request the deletion of your account and personal data; non-logged-in users will not have personal identity information collected
- Right to Withdraw Consent: You can disable relevant permissions (Bluetooth, Location, Camera, etc.) at any time in your device's system settings, though this may affect certain features
- Right to Use Without Login: You have the right to use the core Bluetooth control features of this App without logging in
- Right to Account Deletion: If you are logged in, you can contact us through in-app customer service to request account deletion
7. Protection of Minors
We place great importance on protecting the personal information of minors. If you are under 18 years of age, please read this Privacy Policy with your guardian and use our services only with your guardian's consent. If we discover that we have collected personal information from a minor without guardian consent, we will take steps to delete the relevant data as soon as possible.
8. Third-Party Links
This App may contain links to third-party websites or services (such as the Zhihe mini-program). These third-party services have their own independent privacy policies, and we are not responsible for their content or activities. We encourage you to read their privacy policies when using third-party services.
9. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. The updated Privacy Policy will be notified within the app or through other means. Significant changes will be communicated through prominent notifications such as pop-up dialogs. Your continued use of this App constitutes your acceptance of the updated Privacy Policy.
10. Contact Us