Updated Date: April 23, 2022

Effective Date: April 23, 2022

Welcome to the “Baby’s Teeth” by Sanhe Zhishi Technology Co., Ltd. (hereinafter referred to as “Zhishi Technology”)!

“Zhishi Technology” takes your privacy very seriously. That’s why we have a Privacy Policy covering how your information is collected, used, disclosed, transferred and stored. Below are some examples of the types of personal information we may collect and how we use it, with the following highlights:

We will explain the types of your personal information we collect and their corresponding uses one by one, so that you can understand the specific types of personal information we collect for a specific function, the reasons for use and the methods of collection.

When you use some functions, we will collect some of your sensitive information after obtaining your consent. For example, when you use the “recommend friends in the address book” function, we will collect some of your mobile phone contact information at a time. We use your location locally when using the Distance to Me feature. Unless it must be collected in accordance with relevant laws and regulations, refusing to provide this information will only make you unable to use the relevant specific functions, but will not affect your normal use of other services of “Zhishi Technology”.

“Zhishi Technology” will not share or transfer your personal information to a third party outside “Zhishi Technology”. If you need us to share or transfer your personal information to a third party outside “Zhishi Technology”, we will directly Or confirm that the third party has obtained your express consent for the above behavior. In addition, we will conduct a risk assessment of the behavior of providing information to the outside world.

You can access, correct and delete your personal information through the channels listed in this guideline, and you can also withdraw your consent, cancel your account, report complaints and set up privacy functions.

What personal information we collect

When you use our app, we will collect information such as IMEI, MAC address of the device and software installation list, which will be used for ad serving and crash detection for the stability of the app.

Application permission application and usage description

In order to ensure the realization of product functions and the purpose of safe and stable operation, we may apply for or use the relevant permissions of the operating system. In order to protect your right to know, we display the relevant operating system permissions that the product may apply for and use in the following list, and you can manage the relevant permissions according to your actual needs. According to product upgrades, the types and purposes of application and use rights may change. We will adjust the list in accordance with these changes in a timely manner to ensure that you are informed of the application and use of rights in a timely manner.

Permission name Permission description Use scenario or purpose
NSUserTrackingUsageDescription Whether to allow tracking users Serving personalized Ads
android.permission.INTERNET Whether to allow access to the internet Get data from the server
How we use your personal information

We will use personal information for the following purposes: to help you use our services, to help us improve the services you use, to help prevent loss, to help prevent fraud and to prevent illegal activities.

If you participate in registrations, contests, shopping or similar real-name activities, we will use the information you provide to administer such activities.

Collection and Use of Non-Personal Information

Where necessary, we collect and utilize data that cannot be directly linked to a specific individual. We may collect, use, transfer and disclose non-personal information for necessary reasons. Below are some examples of the non-personal information we may collect and how we use it.

We will collect information such as language, location, and the time zone where users are using “Zhishi Technology” products, so that we can better understand customer behavior and improve our products, services and advertising.

We may collect and store detailed information about how you use our Services, including search queries. Such information may be used to improve the results provided by our services and make them more relevant. Except in rare cases where we need to ensure the quality of the service provided over the Internet, this information will not refer to your IP address.

If we use non-personal information in combination with personal information, such information will be considered personal information for the duration of the combination.

Cookies and other technologies

“Zhishi Technology” websites, online services, interactive applications, emails and advertisements may use “cookies” and other technologies such as pixel tags and web beacons. These technologies help us better understand user behavior, tell us which parts of our site people visit, and measure and improve the effectiveness of advertising and web searches. We treat information collected through cookies and other technologies as non-personal information. However, if local law treats Internet Protocol (IP) addresses or similar identifiers as personal information, we also treat those identifiers as personal information. Likewise, where non-personal information is combined with personal information for the purposes of this Privacy Policy, we treat the combined information as personal information.

Like most Internet services, we also automatically collect certain information and store it in log files. Such information includes Internet Protocol (IP) addresses, browser type and language, Internet Service Provider (ISP), referring/exit website and application software, operating system, date/time stamp, and clickstream data. We use this information to understand and analyze trends, administer the site, understand user behavior on the site, improve our products and services, and gather overall demographic information about our user base. Zhishi Technology may use such information for our marketing and advertising services.

In addition to cookies, we also use other similar technologies such as web beacons and pixel tags on our website. For example, an email we send you may contain a click URL linking to the content of our website. If you click on the link, we will track the click to help us understand your product or service preferences and improve customer service. A web beacon is usually a transparent image embedded in a website or email. With the help of pixel tags in emails, we can tell if an email has been opened. If you do not want your activity to be tracked in this way, you can unsubscribe from our mailing list at any time.

Disclosure to Third Parties

According to the laws, legal procedures, lawsuits and/or the requirements of public agencies and government departments in and outside your country of residence, it may be necessary for “Zhishi Technology” to disclose your personal information. We may also disclose information about you if we determine that disclosure is necessary or appropriate with respect to national security, law enforcement, or other matters of public importance.

We may also disclose information collected if we determine that the disclosure is reasonably necessary to enforce our terms and conditions or to protect our operations or users.

In the event of mergers, acquisitions, asset transfers and other transactions, we will inform you of the relevant circumstances, and continue to protect or require new controllers to continue to protect your personal information in accordance with laws and regulations and standards no lower than those required by these Guidelines.

How we protect your personal information

“Zhishi Technology” attaches great importance to the security of your personal information. The online service of “Zhishi Technology” will use encryption technology such as Transport Layer Security (TLS) to protect your personal information during transmission. When “Zhishi Technology” stores your personal data, we use computer systems with limited access rights, which are deployed in facilities protected by physical security measures. We use encryption technology to ensure the confidentiality of data; We will use trusted protection mechanisms to prevent data from being maliciously attacked; we will deploy access control mechanisms to ensure that only authorized personnel can access personal information; and we will hold security and privacy protection training courses to reinforce the importance of employees on protecting personal information awareness.

We will take all reasonably practicable steps to ensure that irrelevant personal information is not collected. Unless we obtain your written permission, we will retain your personal information for 36 months after you delete or cancel your account. After this period, we will anonymize or destroy your personal information.

When you use certain “Zhishi Technology” products, services or application software or post on social networking services, the personal information and content you share will be seen by other users, who may read, collect or use your personal information . You are solely responsible for the personal information you decide to share or submit in the above situations. For example, if you post your name and email address in a forum, that information is public. We strongly recommend that you do not send personal information in this way.

Third Party Websites and Services

The website, products, application software and services of “Zhishi Technology” may contain links to third-party websites, products and services. Our products and services may also use or offer products or services from third parties. Information collected by third parties that may contain location data or contact information, etc., is subject to the third party’s privacy regulations. We hope you are aware of the privacy practices of these third parties.

Firebase Statistics
Function: Provides statistical analysis.
Type of personal information collected: involves device model, software version and user unique identifier.
Privacy Policy Link: https://firebase.google.com/support/privacy
Third Party: Google Inc.
Function: Provides ad serving.
Type of personal information collected: involves device model, software version and user unique identifier.
Privacy Policy Link: https://policies.google.com/privacy
Third Party: Google Inc.
Function: Provides ad serving.
Type of personal information collected: involves device model, software version and user unique identifier.
Privacy Policy Link: https://www.csjplatform.com/privacy
Third-party subject: Beijing Giant Engine Network Technology Co., Ltd.

Personal Information About Children

Our products, websites and services are primarily aimed at adults. Minors may not create their own user accounts without the consent of their parents or guardians. For the collection of minors’ personal information with parental consent, we will only use or publicly disclose this information when required by judicial or administrative authorities, when the parent or guardian expressly consents, or is necessary to protect minors.

Although local laws and customs define minors differently, we consider anyone under the age of 16 to be a minor.

If we discover that we have collected personal information from minors without prior verifiable parental consent, we will try to delete the data as soon as possible.


We may revise this guidance from time to time. When the terms of the guidelines are changed, we will show you the changed guidelines in the form of push notifications and pop-up windows when you log in and update the version. Please note that we will collect, use and store your personal information in accordance with the updated guidelines only after you click the consent button in the pop-up window.

How to contact us

When you have other complaints, suggestions, or issues related to personal information of minors, please contact us via email support@ifyyy.cn.

We will review the issue as soon as possible and respond within ten days of verifying your user identity.

Sanhe Zhishi Technology Co., Ltd.