Privacy Policy
Last Updated: October 22, 2025
Jidian is a product of Chengdu Jietai Network Technology Co., Ltd. We highly value user privacy and data protection. Please read the following Privacy Policy to understand how we collect, use, and protect your information.
Information involved in commonly used DeviceUtils methods includes:
• Unique Identifiers:
• getUniqueDeviceId(): Attempts to obtain a unique device ID (usually combined with AndroidID, serial number, etc.).
• getAndroidID(): Reads Settings.Secure.ANDROID_ID.
• Hardware Description:
• getManufacturer(): Retrieves the manufacturer (e.g., Xiaomi, Huawei).
• getModel(): Retrieves the device model.
• getSDKVersionName() / getSDKVersionCode(): Retrieves the system version.
• Status Checks:
• isRooted(): Checks whether the device is rooted (by searching for su files, etc.).
• isAdbEnabled(): Checks whether ADB debugging is enabled.
• isEmulator(): Checks whether the device is an emulator.
• Network / MAC:
• getMacAddress(): Reads the network card MAC address.
Hardware Details
• CPU Information: Number of cores, architecture (ABI), processor frequency.
• Memory Information: Total memory size.
• Storage Information: Total internal/external storage size.
• Screen Information: Resolution, screen size, DPI (pixel density).
• Battery Information: Health status, battery percentage, charging status.
• Device Characteristics: Device model, manufacturer, brand, motherboard name, hardware name.
• Android Version: SDK version, firmware fingerprint (Build Fingerprint).
Network Information
• MAC Address (on older Android versions or with special permissions): Used for unique identification.
Advanced Identification (if permissions are granted)
• Local IP Address: Current network environment.
• Installed Applications List (some versions scan specific apps to increase fingerprint entropy).
• Sensor List: Vendor information for sensors such as accelerometers and gyroscopes.
• DRM ID: Digital Rights Management ID (a highly stable identifier).
1. Information Collection
1.1 This service may collect limited technical data such as IP addresses, device information, and connection duration without collecting personal information directly related to user identity, and such information will not be linked to your personal identity.
1.2 We do not collect or store users' browsing history, data content, or DNS query records.
2. Use of Information
2.1 The data we collect is used solely to improve service performance and security, ensuring service stability and user experience.
2.2 We will not sell, rent, or share your data with any third party unless required by law or necessary to protect the legitimate interests of our service.
3. Data Security
3.1 We use advanced encryption technologies and security measures to protect your data from unauthorized access, disclosure, or tampering.
3.2 Although we take reasonable measures to safeguard data security, we cannot guarantee absolute security during internet transmission, and users should understand and assume the associated risks.
4. Third-Party Services
4.1 This service may contain links to or integrations with third-party services. These services are unrelated to this service, and we are not responsible for their privacy policies or data processing practices. Users are advised to carefully review the privacy policies of such services before use.
5. Disclosure of Information
5.1 We may disclose user data if required by law or necessary to protect the legitimate interests of our service.
6. User Rights
6.1 Users have the right to access, correct, or delete the limited personal information we store. To exercise these rights, please contact us using the contact information below.
7. Updates to the Privacy Policy
7.1 We reserve the right to update this Privacy Policy at any time. If significant changes are made, users will be notified via email or in-app notification.
7.2 Continued use of this service indicates your acceptance of the updated Privacy Policy.
8. Contact Us
If you have any questions regarding our Privacy Policy or Terms of Service, please contact us through the following method:
postmaster@jidian.link
9. Account Deletion
After binding your email address, if you want to delete your account, please go to the account deletion section in the app menu and fill in the required information to complete the deletion process.