User Service Agreement：

Introduction

Thank you for registering to use Quizer products. In order to better use the products and services provided by Quizer, please read carefully, fully understand all terms, especially the disclaimer or liability limitation terms, and choose to accept or not.

Unless you have read and accepted all the terms of this agreement, you have no right to download, install or use the relevant products and services provided by Quizer. Your download, installation, use and login means that you have read and agreed to be bound by this agreement.

I. Scope of terms

1.1 This agreement is an agreement between you and Quizer, and the effectiveness of this agreement and all products and services provided by Quizer are subject to this agreement.

1.2 The products and services under this agreement refer to the Internet products and services issued by Quizer, including but not limited to Internet media, Internet value-added services, interactive entertainment (with but not limited to online videos, pictures, software, technical specifications, etc.).

1.3 The content of this agreement also includes the privacy policy and various rules, statements or notices that Quizer has issued or may issue in the future. When you use a specific product or service, there may be a separate agreement and related service rules. You should also comply with the above rules, statements, and notices when they are issued. If you do not agree to this agreement, you should immediately stop registering/activating and stop using our products and services.

1.4 Quizer has the right to modify the agreement and/or various rules (including but not limited to new terms and modifications to existing terms) as needed, and has the right to publish change announcements in the form of online announcements without prior notice. However, when any major changes are made, Quizer will notify you through the Quizer App or other means before the changes take effect. The modified agreement and rules will automatically take effect from the date of publication or at a specific time when the announcement is clearly published. If you continue to use Quizer products or services after the above notification is modified, you will be deemed to have read, understood and accepted the revised agreement and rules. If you do not agree to the revision, you should immediately stop using the products and services provided by Quizer.

1.5 Except as expressly provided herein, Quizer has the right to standardize the products and services developed/used on the basis of this Agreement in accordance with the separately used product and service agreement (hereinafter referred to as the "Single Product Agreement"). Published by Quizer, you will be informed and confirmed in the application of the product or service. If the Single Product Agreement conflicts with this Agreement, the Single Product Agreement shall prevail. If you use the product or service, you will be deemed to have accepted the relevant Single Product Agreement.

II. Introduction to Products and Services

2.1 Quizer provides you with a wide range of Internet products and services, including but not limited to training courses, running, walking, cycling and other related products. You can use, share, purchase products and services provided by Quizer. You have the right to obtain products and services provided by Quizer. Quizer has the right to charge fees for services or products incurred thereby.

2.2 Quizer operators will do their best to provide unimpeded online services, but the platform's network access services may be affected by many factors related to being blocked, restricted or terminated. We will not be liable for any losses or inconveniences caused thereby.

2.3 Quizer provides some products and services that require payment, and you need to pay to use such products. For these charged products and services, we will give you a clear prompt before you pay. When you confirm that you are willing to pay the relevant fees, you can use/continue to use these products and services. If you refuse to pay, Quizer operators have the right not to provide you with charging products and services.

2.4 Quizer only provides online products and services. Network services related to devices (such as mobile phones, personal computers and other devices connected to the Internet or mobile network), as well as fees (such as telephone and Internet charges paid for accessing the Internet, mobile charges for using mobile phones) Network) should be borne by you.

2.5 Replacement, Modification and Upgrade

2.5.1 In order to enhance your experience and improve the service content, Quizer has the right to develop new services based on your usage status and the behavior of Quizer App;

2.5.2 In order to improve, enhance and further develop the service, Quizer has the right to provide software updates (including software upgrades, modifications, enhancements, version upgrades, etc.).

2.5.3 You understand and agree that Quizer has the right to update, change or limit some functions without giving you special notice.

2.5.4 When a new version is released, the old version may not be available. Quizer Operator does not guarantee that the old version will continue to be available. In order to use Quizer services comprehensively and timely, please check and download the latest version at any time.

2.6 Third-party applications and services

The functional modules provided by Quizer can support third-party applications for you, including but not limited to tools, video or picture type services. When using such applications, you shall comply with the provisions of this Agreement and the corresponding agreements, terms or rules of the application. The rights and obligations between you and the developer are executed with reference to the relevant agreements, terms or rules. When using software and services provided by third parties, you must understand and agree that:

2.6.1 When you use applications and services provided by third-party developers, third-party developers will obtain your personal data and content under your authorization. Such information is determined by you and whether it is determined by the third party. You must be clear that the Quizer operator is not responsible for any information leakage that may occur after providing personal data and content information to third-party developers.

2.6.2 Quizer has the right to review and manage applications provided by third-party developers. Quizer has the right to deactivate third-party applications without notifying you. The Quizer operator is not responsible for such impact or loss. However, Quizer will do its best to protect your rights from infringement.

2.6.3 When using third-party applications, you should agree to: A. Authorize the use of your own third-party account (ie Facebook, Google or Instagram) to log in to Quizer; B. Agree that the third party application obtains your personal data for appropriate products and services.

2.6.4 Any dispute between you and the third-party developer will be resolved by yourself and the developer, and the relevant liability and compensation shall be borne only by the third-party developer, not by the Quizer operator.

2.7 All fees are non-refundable, and no refund or rebate will be given for partial use. The service and the right to use it expire at the end of the paid period of the subscription.

2.8 We reserve the right to modify or adjust the current and future pricing model for the use of our services at any time at our sole discretion.

III. Intellectual Property 3.1

Quizer legally owns all rights (including but not limited to intellectual property rights and ownership) to Quizer products.

All copyrights and all other intellectual property rights of Quizer, as well as all information related to Quizer, including but not limited to: text and its combination, icons, decorations, color combinations, interface design, layout frames, related data, printed materials or electronic products are protected by relevant laws and regulations of China's intellectual property rights and relevant international treaties.

3.2 All rights to Quizer products and the information they provide (such as videos, games, technical software, etc.) belong to Quizer, except for content uploaded by users or clearly marked as to be provided by third parties.

3.3 "Quizer" contained in the logos of Quizer products and/or services is a trademark or registered trademark of "

Quizer" and is a trademark or registered trademark of Quizer in China or other countries or regions. You may not use them without the legal authorization of Quizer.

3.4 Quizer owns patent rights, patent application rights, trademarks, copyrights and other intellectual property rights related to Quizer products and related services. Quizer does not grant you any intellectual property rights due to this agreement or the products and services related to you.

Quizer reserves the rights not expressly granted to you herein.

IV. Private Policy

4.1 Protecting user personal information is the basic principle of Quizer.

Quizer will collect, use, store and share your personal information in accordance with the provisions of this Agreement and the Privacy Policy. If the provisions on personal information protection in this Agreement conflict with the Privacy Policy, or the content on personal information protection in this Agreement is not clearly stipulated, the content of the Privacy Policy shall prevail.

4.2 You may need to fill in some necessary information in the process of registering an account or using Quizer products and services. If there are special provisions in local laws and regulations, you also need to fill in your real identity information. If the information you fill in is incomplete, you may not be able to use Quizer products or services, or you may be restricted during use.

4.3 Quizer will not transfer or disclose your personal information to any unrelated third party unless:

4.3.1 Required by relevant laws and regulations or authorized by courts and governments;

4.3.2 Transfer to complete the merger, division, acquisition or transfer of assets;

4.3.3 Provide the services you need;

4.3.4 In other cases, the custodian deems it necessary and does not violate the mandatory provisions of laws and regulations. 4.4

Quizer attaches great importance to protecting the information of minors. If you are a minor under the age of 18, you should obtain the consent of your legal guardian before using Quizer services.

V. User Account, Password and Security

5.1 Registration Qualification

When you complete the registration process or actually use the products and services provided by Quizer, you confirm that you will be a natural person, legal person or other organization with full civil rights and full civil capacity. If you do not have the above subject qualifications, you and your guardian shall bear all consequences arising therefrom, and Quizer has the right to cancel or permanently freeze your account and reserves the right to claim compensation from you or your guardian. Minors under the age of 18 should use Quizer products and services under guidance to avoid addiction.

5.2 Registration and Account

In order to make full use of the products and services provided by Quizer, you need to register an account provided by Quizer. When registering a Quizer account, you are responsible for the authenticity, legality, validity and completeness of the information provided. You are responsible for maintaining and updating your personal information in a timely manner to ensure the authenticity, legality and validity of the information.

5.3Quizer specifically reminds you to protect your account and password and not to disclose your account and password to others. You are responsible for keeping your account and password confidential and for all activities that occur under your account and password (including but not limited to information disclosure, information dissemination, online click-to-approval or submission of various rules agreements, online renewal agreements or purchase of services, etc.). Quizer shall not be responsible for any losses you suffer due to failure to comply with the provisions of this Agreement. If you find any unauthorized use of your account and password, you must notify Quizer immediately. You can send an email to make your request. You must understand and agree that Quizer should take a reasonable time to act after your request, and Quizer shall not be responsible for any adverse consequences arising before taking action.

5.4 You can set a nickname on your account, and the nickname you set shall not infringe or be suspected of infringing the legitimate rights and interests of others. If the nickname you set is suspected of infringing the legal rights of others, Quizer has the right to terminate part or all of the services. You will bear any losses and adverse consequences caused by this.

5.5 You agree to authorize Quizer operators to use the information for the following reasons:

5.5.1 Perform software verification and upgrade services;

5.5.2 Improve your security or provide customer support;

5.5.3 When providing specific services according to your special requirements, it is necessary to provide information to Quizer or third parties or other users related to it;

5.5.4 Use various private privacy data for commercial purposes, including but not limited to providing value-added services, advertising, targeted advertising, marketing, joint registration, promotion or other activities to third parties;

5.5.5 Should be authorized by the judiciary or government;

5.5.6 Improve user experience;

5.5.7 Other situations that are beneficial to users and Quizer and do not violate any mandatory laws and regulations.

VI. User Instructions

6.1 You agree to use Quizer products and services in accordance with the following provisions:

6.1.1 All actions performed in accordance with local laws, regulations and Quizer's rules and requirements shall not violate the public interest or public morality, shall not harm the legitimate rights and interests of others, and shall not violate the relevant rules of this Agreement.

6.1.2 Unless you and Quizer have agreed otherwise, you shall not use any data/information in Quizer for commercial purposes, including but not limited to using all information or courses displayed in Quizer in any way, such as copying and disseminating without the prior written consent of Quizer.

6.1.3 Do not use any equipment, software or program to interfere or attempt to interfere with the normal operation of Quizer or any transaction or activity conducted on Quizer.

6.1.4 Except as otherwise provided by law, no individual or organization may illegally copy, reprint, quote, link, crawl or otherwise use the content of Quizer products in whole or in part in any way without the express written permission of Quizer.

6.2 You fully understand and agree:

6.2.1 If you violate the above commitments and any legal consequences occur, you shall bear all legal responsibilities independently in your own name and ensure that Quizer does not suffer any losses or additional expenses.

6.2.2 If you violate the law or the provisions of this Agreement and cause a third party to claim Quizer, you shall pay all expenses to Quizer (including but not limited to compensation for this purpose, attorney fees and other reasonable expenses)

VII. Disclaimer

7.1 You understand and agree that the use of Quizer may encounter force majeure and other risk factors, resulting in interruptions or delays.

Quizer will strive to repair products and services. However, according to local laws, Quizer is exempt from such damages.

7.2 Within the scope of the law, Quizer is not responsible for the termination or blocking of services caused by the following circumstances:

7.2.1 Damage by computer viruses, Trojan horses or other malicious programs and hacker attacks;

7.2.2 Failure of the user's computer software, system, hardware and communication lines;

7.2.3 Improper operation by the user;

7.2.4 Use of services in a manner not authorized by Quizer;

7.2.5 Others who cannot be controlled or reasonably foreseen.

7.3 You understand and agree that you may encounter risks and damages from network information or other users when using Quizer products and services. Quizer is not responsible for the authenticity, applicability and legality of such risks and damages. These risks and damages include but are not limited to:

7.3.1 Information containing threats or defamation, anonymous or false impersonation;

7.3.2 Any psychological, physical or economic losses caused by misleading other users.

 7.4 Quizer has the right to deal with illegal content, products or services in accordance with this Agreement, but this right does not constitute Quizer's obligations and commitments.

Quizer does not guarantee timely discovery and corresponding processing.

7.5 For personal product operators through Quizer, personal product operators shall bear all responsibilities and obligations.

VIII. Suspension, change or termination

8.1 You should use products and services legally, otherwise, Quizer has the right to take the following measures:

8.1.1 Suspend or restrict your right to use Quizer and its products and services, including but not limited to restricting your use of all or part of its functions;

8.1.2 Terminate your right to use Quizer.

8.2 Quizer has the right to suspend, change, terminate its products or part of its functions according to development, and has the right to decide whether to provide certain products and services in Quizer.

Quizer has no obligation to notify you of the above information.

8.3 Unless required by local law, you are responsible for backing up the data stored in Quizer. When your service is terminated, the Quizer operator has the right to permanently delete all your relevant data from the server, and there is no obligation to return or provide it to you in any form.

IX. Applicable Law and Dispute Resolution

9.1 This Agreement is signed in Haidian District, Beijing, People's Republic of China.

9.2 The establishment, performance, interpretation and dispute resolution of this Agreement shall be subject to the laws of Mainland China (excluding conflicts of law).

9.3 If any dispute arises between you and Quizer, you may choose to negotiate with us or agree to submit the dispute to the Beijing Arbitration Commission located in Beijing. The arbitration is final and binding on both parties.

X. Others

10.1 If any clause in this Agreement is invalid or unenforceable for any reason, it shall not affect the binding force of the remaining clauses.

10.2 The titles of the clauses of this Agreement are for reading only and shall not be regarded as the basis for interpreting the clauses of this Agreement.