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"Device information, such as your device model, release date, brand, operation system version, hardware specifications, Android ID, GAID, language preferences, time and time zone, errors and diagnostic reports, and other hardware specifications information about the model and manufacturer of your device."

UCWeb collects persistent device identifiers (Android ID, Google Advertising ID) and extensive hardware specifications that go beyond what a browser needs for core functionality.

"Location (if you grant permission). When you visit some location-based sites, we may collect your location information after your authorization. Network information, such as IP address, mobile network operator, and network status (e.g., 3G or Wi-Fi)."

UCWeb collects location data and always collects IP addresses and network information, which enables passive geolocation even without explicit location permission.

"When you are visiting internet sites through UC browser, we may use cookies (and similar technologies) to gather information regarding the date and time of your visit and what you search and view. Cookies are computer files that are saved to your device and which may store information about you, your device, and your browser and that may be used to transmit that information to us."

UCWeb uses cookies and similar tracking technologies to monitor user browsing activity across websites visited through the browser, building a profile of search and viewing behavior.

"UCWeb may integrate third party technology or code, such as SDKs. Some of them may collect or process your information in various ways. This Privacy Policy does not apply to these third-party technology or code, and UCWeb shall not be responsible for the information practices of these third parties."

UCWeb embeds third-party SDKs (Google Play Services, Facebook, AppsFlyer) that independently collect user data, and UCWeb disclaims responsibility for how those SDKs handle the data.

"We'll only keep your information as long as needed for our services and other legitimate purposes, like dispute resolution, safety and security, or compliance. When determining how long to keep your information, we may take into the following factors: whether it's necessary to retain the information to provide Services; how sensitive the information is; potential risk of harm from unauthorized use or disclosure; any legal requirements that we are subject to."

There is no specific retention period or deletion timeline. The criteria listed are broad and subjective, effectively allowing indefinite retention of user data.

"This Privacy Policy will be periodically revised and may be changed with or without notice. The updated Privacy Policy will be posted on the UCWeb sites. By using or continuing to use the Services you agree to review the Privacy Policy periodically so that you are aware of any modifications."

UCWeb explicitly reserves the right to change the privacy policy without any notice, and treats continued use as acceptance of new terms, placing the burden on users to check for changes.

"Please note that we may be required by law to store the information we collect, even after you have terminated your use of UCWeb Services. For technical reasons, it may be impossible for us to determine whether you have stopped using the UCWeb Services. For mobile applications, it may also be impossible for UCWeb to determine whether you have deleted the application."

UCWeb provides no clear self-service account deletion process, retains data after termination citing legal requirements, and claims it cannot even detect when users stop using the service.