Effective Date: March 29, 2026
DevInfo is an online product provided by Shanghai Liuzhou Technology Co., Ltd.
If you decide to use the services provided by our product, this policy is intended to inform you how we collect, use, and disclose user privacy information.
If you choose to use the services we provide, you agree to the collection and use of information related to this policy. The personal information we collect is used to provide and improve our services.
Unless otherwise stated in this Privacy Policy, we will not use or share your information with anyone.
We collect some or all of the information you provide to us, as well as data generated from your use of the application. We mainly use the collected data to provide you with satisfactory services and improve your user experience.
We may collect the data necessary for you to use our application so that we can maintain and analyze the functionality of the application and configure its content.
We may attempt to obtain certain information about your device, including IP address, country code, time zone, session start/stop time, language, network status, browser plug-in type and version, platform, SDK version, timestamp, and technical device information (such as device model and name, operating system name and version, CPU information, storage size, screen size, firmware, application software API key identifier, push notification token, IDFA, battery/power information, etc.). Although some of this information (such as IDFA and IP address) may uniquely identify your device, it does not personally identify you. In some jurisdictions (such as the United States), information that uniquely identifies your device may be treated as personal information.
In addition, in order to provide you with features related to sensors, we may access sensor-related information on your device, but we do not collect or upload such information.
We use the collected data for some or all of the following purposes:
The security of your data is important to us, but please remember that no security measure is perfect or impenetrable. Although we strive to use commercially acceptable means to protect your personal data, we cannot guarantee its absolute security.
Your information, including personal data, may be transferred to computers located outside your state, province, country, or other governmental jurisdiction, and the data protection laws of those jurisdictions may differ from those of your jurisdiction.
If you are located outside China and choose to provide information to us, please note that we transfer the data (including personal data) to China and process it there.
When necessary, we may disclose your personal information, including but not limited to the following circumstances:
We may employ third parties (companies or individuals) to facilitate our services (“Service Providers”). These third parties provide services on our behalf, perform service-related tasks, or assist us in analyzing how our services are used. These third parties may access your personal data only on our behalf to perform these tasks and are obligated not to disclose or use it for any other purpose.
Our services may contain links to other websites that are not operated by us. If you click a third-party link, you will be directed to that third party’s website. We strongly recommend that you review the privacy policy of every site you visit. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party websites or services.
When information is no longer needed, we will take reasonable measures to delete it in order to protect the information from unauthorized access or use.
We have implemented reasonable security measures to protect the confidentiality, security, and integrity of the information collected and to prevent unauthorized access to or use of information in violation of this Privacy Policy. Although we make reasonable efforts to keep your information secure while we maintain it, please note that no security measure is absolutely secure.
We attach great importance to the protection of minors’ personal information. If you are a minor, you should ensure that you have obtained your guardian’s consent before using our services. If we learn that we have collected personal information from children under the age of 14, we will take all reasonable steps to delete such information as soon as possible. If you become aware that your child has provided us with personal information without your consent, please contact us.
We use cookies and similar tracking technologies to track activities on our services and retain certain information.
Cookies are files containing a small amount of data, which may include an anonymous unique identifier. Cookies are sent to your browser from a website and stored on your device. We also use other tracking technologies such as beacons, tags, and scripts to collect and track information and to improve and analyze our services.
You can instruct your browser to refuse all cookies or to indicate when a cookie is being sent. However, if you do not accept cookies, you may not be able to use certain parts of our services.
Examples of the cookies we use:
The third-party SDKs used by our product are listed below. You also need to agree to the privacy policies provided by these third-party service providers.
1. WeChat Open SDK for iOS
Usage Scenario: WeChat sharing and favorites, WeChat login
Information Collected: Images/content actively selected by the user; WeChat avatar and nickname information actively selected by the user; payment order identifiers generated by third-party applications, and transmission of payment status (success/failure)
Third Party: Tencent Technology (Shenzhen) Company Limited
Privacy Policy: https://support.weixin.qq.com/cgi-bin/mmsupportacctnodeweb-bin/pages/RYiYJkLOrQwu0nb8
2. FirebaseAnalytics
Usage Scenario: App data analytics
Information Collected: Device information (manufacturer/model/IDFA/IP address/device ID/location information/network information/battery information/disk space), system information (operating system/version/language/region, etc.), etc.
Third Party: Google
Privacy Policy: https://policies.google.com/privacy
3. FirebaseCrashlytics
Usage Scenario: Analysis and statistics of system/app errors
Information Collected: Device information (manufacturer/model/IDFA/IP address/device ID/location information/network information/battery information/disk space), system information (operating system/version/language/region, etc.), etc.
Third Party: Google
Privacy Policy: https://policies.google.com/privacy
4. FirebaseRemoteConfig
Usage Scenario: Distribution of application configuration
Information Collected: Device information (manufacturer/model/IDFA/IP address/device ID/location information/network information/battery information/disk space), system information (operating system/version/language/region, etc.), etc.
Third Party: Google
Privacy Policy: https://policies.google.com/privacy
5. Google-Mobile-Ads-SDK
Usage Scenario: Advertising delivery, advertising attribution, ad fraud prevention, ad monitoring, and ad performance optimization
Information Collected: Location information, device information (manufacturer/model/IDFA/IP address/device ID/network information/battery information/disk space), system information (operating system/version/language/region, etc.), etc.
Third Party: Google
Privacy Policy: https://policies.google.com/privacy
6. Tencent Advertising Alliance SDK
Usage Scenario: Advertising delivery, advertising attribution, ad fraud prevention, ad monitoring, and ad performance optimization
Information Collected: Location information, device information (such as device manufacturer, device model, operating system version, etc.), device identifiers (such as OAID, IDFA, IDFV, IP address, etc.), application information (package name and version of the host application), advertising data (such as click and conversion data, etc.), app list, sensor information (pressure sensor, accelerometer, gyroscope)
Third Party: Tencent Technology (Shenzhen) Company Limited
Privacy Policy: https://ylh.qq.com/help_detail.html?cid=2005&pid=5983
According to this Privacy Policy, you may uninstall this application from each of your devices and stop using it, thereby freely choosing not to participate in the future collection of your personal information within the software.
We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.
We recommend that you review this Privacy Policy periodically for any changes. Changes to this Privacy Policy become effective when they are posted on this page.
If you have any questions about this Privacy Policy, please contact us.