# Privacy Policy \(Version 1\.0\) **Effective Date:** 2026-07-01 **Last Updated:** 2026-07-01 **Full Legal Name of Operator:** Yisi (Shenzhen) Artificial Intelligence Co., Ltd. The operator identified above \(hereinafter referred to as “we,” “us,” or “our”\) respects and protects the security of all users’ personal information\. We place great importance on your privacy protection and will safeguard your personal information in accordance with applicable laws and regulations\. This Privacy Policy is intended to explain how we collect, use, store, share, and protect your personal information when you use our AceiiLab mobile application \(hereinafter referred to as “the App”\) and tennis robot services, as well as the rights you have regarding your personal information\. Please carefully read and fully understand this Privacy Policy before using our services\. By clicking “Agree” or starting to use our services, you acknowledge that you have read, understood, and accepted all contents of this Privacy Policy\. --- # Information We Collect and How We Use It We collect necessary information based on the functions and scenarios you use\. The specific details are as follows: ## \(1\) Information You Provide Voluntarily ### Registration and Login To create, access, and protect your personal account, you are required to provide your **email address, login password or authentication credential derived from it, and email verification code**, and select your **country/region**\. If you use invitation registration, we will also process the **invitation code** you voluntarily enter\. ### Personal Profile You may provide additional profile information, including your nickname, personal introduction, gender, date of birth, NTRP rating, dominant hand, and virtual avatar\. This information is used to display your profile and provide training recommendations that better match your needs\. ### Community Posts Content you voluntarily publish in the tennis community, including text, images, videos, audio, comments, private messages, and related metadata, will be displayed according to your privacy settings\. ### Customer Support and Feedback Information you provide when contacting customer support, submitting feedback, or participating in activities\. --- ## \(2\) Information Automatically Processed During Your Use of Our Services To ensure normal operation of our services, improve user experience, and maintain security, we may automatically collect and process the following information: | Information Type | Specific Information | Purpose | Collection Details | |---|---|---|---| | **Basic Device and App Information** | Device model, operating system name and version, operating platform, App language, and App version | Ensure compatibility, troubleshoot issues, and improve user experience | Automatically transmitted in network requests after you agree to this Privacy Policy | | **Network and Log Information** | IP address, network status, crash logs, error logs, and performance data | Maintain network stability, handle errors, and improve service quality | Automatically recorded and uploaded after you agree to this Privacy Policy\. Log information **does not include** sensitive data such as your account password or video content | | **Clipboard Information** | Text, links, passcodes, and invitation codes on the clipboard | Recognize sharing passcodes and invitation links, enable quick paste, and support page navigation | Read **only when you actively trigger a relevant function** \(such as copying a passcode or opening the App to recognize an invitation code\)\. The App **does not frequently access the clipboard or read it in the background** | **Special Notice:** This App does not collect your IDFA, IDFV, MAC address, installed application list, or other similar information, and does not request related permissions\. --- ## \(3\) System Permission Usage We request the following system permissions only when you use the corresponding functions\. Refusing a permission will not affect unrelated functions, but the corresponding function may not operate normally: | System Permission | When It Is Requested | Purpose | |---|---|---| | **Bluetooth Scanning and Connection** | When scanning for, pairing with, connecting to, or controlling the tennis robot | Discover nearby robots and establish a Bluetooth communication link | | **Location** | When an Android device scans for Bluetooth devices, or when an Android/iOS device reads the current Wi\-Fi name and connects to the robot network | Satisfy operating system requirements for Bluetooth scanning and Wi\-Fi information access; we do not use this permission to obtain or upload your actual geographic location | | **Nearby Wi\-Fi Devices and Local Network** | When discovering the robot, connecting to the robot’s Wi\-Fi, or transferring data over the local network | Discover and connect to nearby robots and establish local communication between your phone and the robot | | **Camera** | When you voluntarily take and set a profile photo | Access the camera to take a profile photo | | **Photo Library, Photos, and Videos** | When you voluntarily select a profile photo, select a video for AI analysis, or save an image | Read only the photo or video you select and save an image you choose to your photo library; we do not read other unselected content | | **Notifications** | When you enable training, device, or interaction notifications | Display relevant reminders in the system notification area | --- ## \(4\) Core Service Functions \(Bluetooth Device Pairing and Control\) To provide Bluetooth\-based device pairing, connection, and control functions: ### Bluetooth Permission You need to authorize Bluetooth access on your phone to scan and connect nearby devices\. Bluetooth is only used to establish communication between your phone and the device\. ### Control Commands Parameters adjusted through the App \(such as ball speed, spin angle, launch height, training modes, etc\.\) are transmitted to the device via Bluetooth for execution\. ### Recording and Analysis Training reports are uploaded to and stored on our servers\. They may include training start and end times, duration, shot count, ball and stroke speed, success rates, movement distance and speed, fatigue curves, landing point distribution, and training mode\. We use this fitness and training data to provide training history, charts, and analysis\. ### Local Video Recording and Playback Videos recorded through the device’s real\-time recording function are directly transmitted between the device and your phone via Bluetooth or local network\. Video playback and analysis are performed locally on your phone\. Unless you voluntarily use the AI analysis function described below, video playback and analysis remain local to your phone\. --- ## \(5\) AI Intelligent Analysis \(Cloud Processing Mode\) To provide advanced AI analysis functions, including motion capture, stroke posture correction, and tactical recommendations, you may voluntarily upload training videos, including any audio track contained in those videos, and related sports data \(such as ball speed, spin angle, landing point distribution, etc\.\) to our cloud servers\. To improve upload efficiency, videos are compressed locally on your device before upload, and the original audio track is retained during compression\. The uploaded data will be transmitted via HTTPS encryption to our third\-party AI algorithm service provider, Amazon Web Services \(AWS\), for centralized processing\. After processing is completed, the generated detailed analysis report will be delivered to your App\. ### Important Commitments: - Uploaded videos and related sports data will be stored on the server for **7 days**\. The original files will be deleted when this retention period expires\. - The third\-party AI service provider performs only the computing and storage necessary during the 7\-day retention period\. Through a Data Processing Agreement \(DPA\), we require that it does not use your data for other purposes or for model training and deletes the original data when the retention period expires\. --- # How We Use Cookies and Similar Technologies To ensure the normal operation of our services and improve user experience, we or our partners may use Cookies, local storage, log files, and similar technologies\. These technologies may be used for purposes such as saving user preferences, maintaining service status, identifying devices, statistical analysis, and troubleshooting\. You may manage or disable these technologies through your browser or device settings\. However, adjusting certain settings may affect the normal use of some features of the App\. --- # Information Storage and Security ## 3\.1 Storage Locations ### Local Storage Your control commands and local video playback files are stored locally on your mobile device by default\. ### Cloud Storage Your account information \(including email address, country/region, nickname, personal introduction, gender, date of birth, NTRP rating, dominant hand, and virtual avatar\), training data, training reports and charts, community content, and final AI analysis reports are stored on our business servers\. Our business servers use AWS and are deployed in [To be completed: AWS Region name and country/region]\. --- ## 3\.2 Storage Duration Before publishing this Privacy Policy, replace each placeholder below with a specific numeric period or deletion event based on the actual technical implementation and applicable legal requirements: | Data Category | Storage Location | Retention Period or Deletion Event | |---|---|---| | Account registration information and profile data | AWS business servers in US East \(Northern Virginia\) | For the life of the account and deleted within 7 days after a successful account cancellation request, unless otherwise required by law | | Basic device and App information | AWS business servers in US East \(Northern Virginia\) | Deleted within 7 days after account cancellation | | Network, crash, error, and performance logs | AWS business servers in US East \(Northern Virginia\) | 30 days from the date the log is generated | | Clipboard information | Memory\-only processing | Not retained | | Device control commands | Local mobile device | Retained until you delete them, clear the App cache, or uninstall the App | | Training counts, duration, analysis data, training reports, and charts | Local mobile device and AWS business servers in US East \(Northern Virginia\) | Deleted within 7 days after account cancellation | | Local video files | Local mobile device | Retained until you delete them, clear the App cache, or uninstall the App | | Community content, comments, private messages, and related metadata | AWS business servers and CDN in US East \(Northern Virginia\) | Deleted within 7 days after account cancellation | | Original videos and sports data submitted for AI analysis | AWS AI servers | Stored for 7 days from the date of upload and deleted when the retention period expires | | AI analysis reports | AWS business servers in US East \(Northern Virginia\) | Deleted within 7 days after account cancellation | | Copies of the above data in server backups | AWS business servers in US East \(Northern Virginia\) | Overwritten within 30 days after deletion from the primary system | If applicable laws require a longer retention period, or extended retention is necessary to resolve disputes or protect security, we will retain the relevant data only to the extent permitted by law and delete or anonymize it after the relevant purpose has been fulfilled\. --- ## 3\.3 Security Measures We adopt reasonable and practical security measures to protect your personal information, including: - **Access Control:** Production databases are accessible only to authorized personnel\. - **Identity Verification:** Identity verification is required for important operations\. - **Encrypted Data Transmission:** HTTPS encryption is used for data transmission\. - **Log Auditing:** Important operations are recorded through audit logs\. Although we take reasonable measures to protect your information, the Internet environment cannot be guaranteed to be completely secure\. Please properly protect your account credentials and device information\. If a personal information security incident occurs, we will notify you in a timely manner in accordance with applicable laws and regulations, including basic details of the incident, possible impacts, and remedial measures taken\. --- # Information Disclosure and Sharing We do not sell your data\. To complete an AI analysis that you voluntarily initiate, we share the training video, including its audio track, and related sports data with AWS\. Except for the service providers identified in this Privacy Policy, sharing you authorize, or disclosures required by law, we do not share this data with other third parties\. ## 4\.1 Information Sharing Unless you separately provide consent, we will not share your personal information with third parties except in the following circumstances: - **Necessary sharing to provide services**, such as sharing necessary information with cloud storage providers, notification service providers, login authentication service providers, and other service providers required for service operation\. - **AI analysis services:** To provide AI analysis functions, encrypted training videos and sports metric parameters may be shared with our third\-party AI computing service provider, Amazon Web Services \(AWS\)\. The data is used only for computing and necessary storage for up to 7 days, is not used for model training, and is deleted when the retention period expires\. - **Sharing initiated or authorized by you**, such as sharing with third\-party platforms, third\-party login services, or synchronization services\. - **Necessary disclosures** for maintaining platform security, handling disputes, or responding to lawful requests\. - Other circumstances required or permitted by applicable laws and regulations\. --- ## 4\.2 Public Disclosure We will only publicly disclose your personal information when: - You provide separate consent; or - Disclosure is explicitly required by applicable laws and regulations\. --- # Third\-Party SDK List To provide specific service functions, we integrate certain third\-party SDKs\. The collection and processing of information by these third parties are governed by their respective privacy policies\. We will initialize statistical analysis, push notification, crash monitoring, and other related SDKs only after you agree to this Privacy Policy\. If you do not agree, you will not be able to complete registration or login, and you will not be able to use our services\. | Name | Provider/Operator | Purpose | Information That May Be Processed | Privacy Policy | |---|---|---|---|---| | **AWS AI Computing Services** | [To be completed: full legal name of the AWS contracting entity applicable to the operator] | Perform video motion capture, posture analysis, data regression calculations, and necessary storage for up to 7 days | Encrypted training videos and sports metric parameters \(stored for 7 days, not used for model training, and deleted when the retention period expires\) | [AWS Privacy Notice](https://aws.amazon.com/privacy/) | --- # How You Manage Your Personal Information You have full control over your personal data: ## Access and Correction You may view your training reports, historical data, community posts, and personal profile information within the App at any time\. You may also edit information such as your nickname, personal introduction, gender, date of birth, NTRP rating, dominant hand, and virtual avatar\. ## Delete Local Data You may delete all locally stored data through the App’s cache clearing function or by uninstalling the App\. ## Delete Cloud Data You may delete server\-side account information and community content through the account deletion function\. The deletion function for AI analysis reports is currently under development\. At this stage, you may contact customer support for assistance with deletion\. ## Withdraw Authorization You may disable permissions such as photo access, camera, location, and Bluetooth through your phone’s system settings\. If permissions are denied, the App will not crash, but related functions may become unavailable\. The App will request permission again when you use the related feature in the future\. ## Account Cancellation You may request account cancellation according to the instructions provided in the App\. After a successful account cancellation request, we will delete your account and associated server\-side data within 7 days, unless otherwise required by law\. Local data must be deleted by you through uninstalling the App or clearing App data/cache\. ## Requests and Complaints If you have questions regarding the processing of your personal information, you may contact us through the contact information provided at the end of this Privacy Policy\. # Protection of Minors We attach great importance to the protection of minors’ personal information\. If you are a minor, you should use our services under the consent and guidance of your parent or legal guardian\. If a parent or legal guardian has any questions regarding the protection of the minor’s personal information, they may contact us through the contact information provided in this Privacy Policy\. --- # Updates to This Privacy Policy To provide better services, we may update this Privacy Policy from time to time\. Without your explicit consent, we will not reduce the legal rights you are entitled to under this Privacy Policy\. If significant changes occur to this Privacy Policy, such as: - expansion of the scope of information collection; - changes to third\-party sharing partners; - changes that may materially affect your rights; we will notify you through in\-App notifications, pop\-up notices, or other reasonable methods\. --- # Contact Us If you have any questions, comments, or requests regarding this Privacy Policy, including requests to cancel your account or assistance with deleting AI analysis reports, please contact us through the following methods: - **Customer Support Email**: [support@aceiilab\.com](mailto:support@aceiilab.com) - **In\-App Contact**: My → Setting → Support \& Help We will respond to your request as soon as possible, generally within **15 business days**\. --- This Privacy Policy becomes effective on the “Effective Date” stated at the beginning of this document\. The date of the latest update is the “Last Updated” date stated above\. **Version:** V1\.0