Privacy Policy
CalcTools (the "Site", domain: calctools.playonlineminigame.top) takes your privacy seriously. This privacy policy explains how we collect, use and protect your information when you visit the Site.
1. Information we collect
We do not collect any personal information. All calculator tools (mortgage, income tax, BMI, unit conversion, etc.) run entirely in your local browser. Any data you enter (salary, weight, loan amount, etc.) is never uploaded to our servers and is cleared when you refresh the page.
2. Local storage
The Site uses your browser's localStorage solely to remember your language preference (English / 中文) so it can be restored on your next visit. This data stays in your local browser and is never sent to any server. You can clear it at any time via your browser settings.
3. Cookie policy
As of the last update of this policy, the Site itself does not use cookies. However, please note:
- The Site may integrate third-party advertising services in the future (such as Google AdSense); at that time advertisers may use cookies to serve relevant ads
- Third-party vendors, including Google, may use cookies (such as the DART cookie) to serve ads based on your visits to this and other websites
- You can manage personalized advertising preferences via Google Ads Settings
4. Third-party services
The Site may use the following third-party services, which have their own privacy policies:
- Hosting: Cloudflare Pages (serves the Site and may log access)
- Advertising (if integrated in the future): Google AdSense — see the Google advertising privacy policy
5. Data security
Because the Site does not collect user data, there is no user-data breach risk. The Site is served over HTTPS and protected by Cloudflare's security features.
6. Children's privacy
The Site offers calculators to the general public and does not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with information, please contact us by email and we will delete it promptly.
7. Changes to this policy
This privacy policy may be updated from time to time. When it changes, we will update this page and revise the "Last updated" date. Please review this page periodically for the latest policy.
8. Contact us
For any privacy-related questions, contact us by email:
CalcTools（以下简称"本站"，域名：calctools.playonlineminigame.top）非常重视用户隐私。本隐私政策说明我们在您访问本站时如何收集、使用和保护您的信息。
1. 我们收集的信息
本站不收集任何个人身份信息。所有计算器工具（房贷、个税、BMI、单位换算等）的计算均在您本地浏览器中完成，您输入的任何数据（如工资、体重、贷款金额等）不会上传到我们的服务器，刷新页面后即被清除。
2. 本地存储
本站使用浏览器的 localStorage 技术仅保存您的语言偏好（中文 / English），以便下次访问时自动选择。该数据存储在您本地浏览器中，不会发送到任何服务器。您可以通过浏览器设置随时清除该数据。
3. Cookie 政策
截至本政策更新日，本站自身不使用 Cookie。但请注意：
- 本站未来可能接入第三方广告服务（如 Google AdSense），届时广告商可能会使用 Cookie 来展示相关广告
- 第三方广告商（如 Google）可能使用 DART Cookie，根据用户在本站和其他网站的访问记录投放广告
- 用户可通过 Google 广告设置 管理个性化广告偏好
4. 第三方服务
本站可能使用以下第三方服务，这些服务有自己的隐私政策，请参阅：
- 网站托管：Cloudflare Pages（提供网站访问服务，可能记录访问日志）
- 第三方广告（如未来接入）：Google AdSense，详情见 Google 广告隐私政策
5. 数据安全
由于本站不收集用户数据，因此不存在数据泄露风险。本站通过 HTTPS 加密传输，使用 Cloudflare 的安全防护功能，保障访问安全。
6. 儿童隐私
本站面向一般公众提供计算工具，不会故意收集 13 岁以下儿童的个人信息。如果您是儿童监护人并发现您的孩子向我们提供了信息，请通过邮箱联系我们，我们会及时删除。
7. 政策变更
本隐私政策可能会不时更新。政策变更后，我们会在本页面更新并修改"最后更新"日期。建议您定期查阅本页以了解最新政策。
8. 联系我们
如有任何隐私相关问题，请通过邮箱联系：