The Privacy Protection Statement is our commitment to protect the privacy of our users. We take the protection of your personal privacy very seriously, and sometimes we need certain information to provide you with the services you request. This privacy statement explains the collection and use of data in these situations. This privacy statement applies to all related services of the App product, and as the scope of the service expands, the content of the privacy statement can be updated by the company at any time without prior notice. The updated Privacy Statement is effective in place of the original Privacy Statement once posted on the web page. After the company has revised the terms of service of the Privacy Statement, your continued use of the Service shall be deemed to have accepted the revised terms.


collect message
In order to provide you with better user service, we will only record data related to customs clearance. .


About your personal information
The company strictly protects the security of your personal information. We use a variety of security technologies and procedures to protect your personal information from unauthorized access, use or disclosure.

The company discloses your personal information when required by law or in compliance with the relevant terms of service of the company or the software license agreement, or has good reason to believe that it must be done:

(a) meet the express requirements of laws or administrative regulations, or comply with applicable legal procedures of the company;
(b) Compliance with the relevant terms of service of the Company and the agreement for the use of the Software;
(c) protect the rights or property of the company;
(d) Personal safety of users or the general public who protect employees of the company, our products or services in an emergency.

The Company will not share this information with third parties without your permission, except as indicated above in this statement.

About information security
The company will maintain the confidentiality of the information collected. We establish a good internal mechanism to better protect the security and confidentiality of the above information by limiting the scope of employees who obtain and use the above information.

About disclaimer
The company does not assume any legal responsibility for the occurrence of the following related matters:
(a) the disclosure of any personal information resulting from the user’s password being shared with others or sharing the registered account with others, or the disclosure of other personal information that is not due to this report;
(b) The company provides your personal information in accordance with legal requirements or relevant government policy requirements;
(c) any dispute arising from the use of your personal information by any third party in accordance with the terms and conditions set forth in the Company’s Terms of Service;
(d) any temporary closure due to hacking, computer virus intrusion or government regulation;
(e) any consequences resulting from force majeure;
(f) The manner of use or disclaimer set out in the Terms and Conditions of the Company.

隐私权保护声明系本公司保护用户个人隐私的承诺。我们非常重视对您的个人隐私保护,有时候我们需要某些信息才能为您提供您请求的服务,本隐私声明解释了这些情况下的数据收集和使用情况。本隐私声明适用于 App产品的所有相关服务,并且随着服务范围的扩大,隐私声明的内容可由本公司随时更新,且毋须另行通知。更新后的隐私声明一旦在网页上公布即有效代替原来的隐私声明。在本公司修改隐私声明的服务条款后,您继续使用服务应被视作您已接受了修改后的条款。








(a) 满足法律或行政法规的明文规定,或者符合本公司适用的法律程序;
(b) 符合本公司相关服务条款、软件许可使用协议的约定;
(c) 保护本公司的权利或财产;
(d) 在紧急情况下保护本公司员工、本公司产品或服务的用户或大众的个人安全。





(a) 由于您将用户密码告知他人或与他人共享注册帐户,由此导致的任何个人信息的泄漏,或其他非因本报原因导致的个人信息的泄漏;
(b) 本公司根据法律规定或政府相关政策要求提供您的个人信息;
(c) 任何第三方根据本公司各服务条款及声明中所列明的情况使用您的个人信息,由此所产生的纠纷;
(d) 任何由于黑客攻击、电脑病毒侵入或政府管制而造成的暂时性关闭;
(e) 因不可抗力导致的任何后果;
(f) 本公司在各服务条款及声明中列明的使用方式或免责情形。

Terms of Service服务条款


App subscription:
You can subscribe for access to the full list of Math lessons.
Payment will be charged to iTunes Account at confirmation of purchase.
You will be able to do all exercises for the duration of the subscription.
Subscription automatically renews for the same price and duration period as the original “one week”/”one month”/”one year” package unless auto-renew is turned off at least 24-hours before the end of the current period.
Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package (weekly, monthly or yearly package).
Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s iTunes Account Settings after purchase.
No cancellation of the current subscription is allowed during active subscription period.
You may cancel a subscription during its free trial period via the subscription setting though your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged. Please visit: http://support.apple.com/kb/ht4098 for more information.
You may turn off the auto-renewal of your subscription via your iTunes Account Settings. However, you are not able to cancel the current subscription during its active period.
Any unused portion of free-trial period, will be forfeited when the user purchases an app subscription.

Links to our Terms of Service and Privacy Policy can be found below.

Privacy Policy: http://www.heima1688.com/privacypolicy/
Terms of use: http://www.heima1688.com/service/

* Prices are equal to the value that “Apple’s App Store Pricing Matrix” determines as the equivalent of the subscription price in $ USD

It is a software service provided by junhua zheng. These Terms of Service (“Terms of Service”) are the primary agreement between you and junhua zheng regarding your (“you” or “users”) access and use documentation and other services provided by junhua zheng (“Services”) .


Before accepting this agreement, please read all the contents carefully. If you cannot accurately understand or disagree with any of the contents of this agreement, please do not follow up. By clicking on the confirmation, actual purchase or use of the services provided by junhua zheng, you have read and fully understand the contents of this agreement, and have agreed with junhua zheng to use or order the corresponding products and / or services, and Agree to accept all the contents of this agreement and be bound by it.

In particular, you are reminded that you are concerned about the terms of this agreement regarding restrictions, exemptions from junhua zheng, restrictions on the rights of users, the determination of violations/defaults, and the choice of jurisdictional courts. The foregoing may be bold and/or Underlined to alert you.


Due to the rapid development of the Internet industry, these Terms of Service do not fully cover and cover all of your rights and obligations with junhua zheng, and existing agreements cannot guarantee full compliance with future development needs. Therefore, you agree that junhua zheng reserves the right to make any modifications and additions to these Terms of Service from time to time and to make them public. Normally (for example, when modifications or additions are required to meet applicable legal requirements), changes to the Terms of Service, Privacy Policy or Rules will take effect immediately upon publication or on the effective date of the regulations. Your continued access to and use of the junhua zheng documentation constitutes your acceptance of the revised Terms of Service. Otherwise, you have the right to terminate the Terms of Service by stopping access to the junhua zheng document and refusing to use the service, deleting your information and account on the junhua zheng document.


If you represent an organization other than your personal registration, login, and/or other services, you will be deemed to be fully authorized to act on behalf of the organization to agree to the modifications and additions to these Terms of Service and the Terms of Service from time to time.

1. Service content
“Products and/or Services” in these Terms means that the junhua zheng documentation provides you with the services displayed on the http://www.heima1688.com website (the official website of the document), the specific service content is used or ordered by you. The content shall prevail.


Depending on the actual needs and other services provided by junhua zheng from time to time, junhua zheng may enter into other agreements with you. In the meantime, even if no other agreement is signed, your specific service using the junhua zheng document will be deemed to be your consent to junhua zheng’s request for such specific services. In the event of a conflict between the other agreement and this clause, the other agreement shall prevail, subject to the conflict and to the specific matter of the agreement.