Privacy Policy: This app respects and protects the privacy of all users who use the service. 1. Scope of application all users 2. Information storage The progress and sorting information used by this application are stored locally and will not be uploaded to the server 3. Information Security (a) This application will access the server when the application starts for the first time, and obtain an id, but the id has no relationship with the user device, it is just an auto-incrementing serial number, which is used to count the number of historical users (b) This application will not collect user privacy information, and the search function will not request the server 4. Changes to this Privacy Policy (a) If we decide to change the privacy policy, we will publish these changes in this policy and where we think it is appropriate, so that you can understand how we collect and use your personal information, who can access this information, and under what circumstances We will disclose this information. (b) reserves the right to modify this policy at any time, so please check it frequently.