calculatortools

Privacy Policy 隐私政策

Last updated: July 27, 2026 最后更新：2026 年 7 月 27 日

calculatortools ("the Site") respects your privacy. This policy explains our practices regarding data handling. By using the Site, you agree to the terms described in this privacy policy.

Information Collection

All calculators on this Site run locally in your browser. Any data you enter into the tools (such as amounts, height and weight, dates, etc.) is processed only on your device. We do not collect, store, or upload any personal data to our servers.

This means that sensitive information you enter, such as financial or health data, never leaves your device. We neither can nor intend to access this data.

Cookie Usage

This Site uses only essential functional cookies to improve your experience, including:

  • Theme preference: The theme you select (light / dark mode) is stored in your browser's localStorage so it persists across visits.

This data is kept entirely in your browser and is never sent to a server. You can delete it at any time by clearing your browser data.

Third-Party Advertising

To keep the Site free, we use third-party ad networks such as Google AdSense. When displaying ads, third-party advertisers (such as Google) may use cookies to collect information about your visit (such as device, location, and browsing preferences) to serve ads that are more relevant to you.

You can manage ad personalization

The cookie practices of third-party advertisers are governed by their respective privacy policies, which this Site cannot control. We recommend that you review the relevant advertiser's privacy notice.

Third-Party Services

Some tools call third-party APIs to fetch real-time data while running, for example:

  • Exchange rate tool: Calls a third-party exchange rate API to get real-time rates for conversion. This process only requests rate values and does not involve any of your personal information.

Apart from these necessary data requests, all calculations are performed locally.

Data Security

Because all calculations run in your local browser, your financial data, health data, and other inputs are never transmitted over the network, which fundamentally prevents sensitive data from being leaked. Even when using financial tools (such as mortgage or income tax calculators), the income, loan amount, and other details you enter exist only on your device.

Children's Privacy

This Site is intended for general users and does not knowingly collect personal information from children under 13. Since we do not collect any personal data, children can also safely use the calculators on this Site.

Policy Updates

We reserve the right to update this privacy policy at any time. When the policy is updated, we will publish the revised version on this page and update the "Last updated" date. We recommend that you review it periodically to stay informed of the latest content. Continued use of the Site constitutes your acceptance of the updated privacy policy.

Contact Us

If you have any questions or suggestions about this privacy policy, you can reach us through the following channels:

  • Visit the Contact Us page to submit feedback.
  • Send an email to contactt1231@outlook.com describing your privacy-related questions.

calculatortools（以下简称"本站"）非常重视用户隐私。本政策说明我们在数据处理方面的做法。使用本站即表示您同意本隐私政策所述内容。

信息收集

本站提供的所有计算工具均在您的浏览器本地运行。您在工具中输入的所有数据（如金额、身高体重、日期等）只在您的设备上处理，不收集、不存储、不上传任何个人数据到我们的服务器。

这意味着您输入的财务信息、健康数据等敏感内容永远不会离开您的设备，我们无法也无意获取这些数据。

Cookie 使用

本站仅使用必要的功能 Cookie 以提升使用体验，主要包括：

  • 主题偏好：您选择的主题（浅色 / 深色模式）存储在浏览器的 localStorage 中，以便下次访问时保持一致。

这些数据完全保存在您的浏览器本地，不会发送到服务器，您可以随时通过清除浏览器数据将其删除。

第三方广告

为维持站点免费运营，本站接入了 Google AdSense 等第三方广告联盟。在展示广告时，第三方广告商（如 Google）可能使用 Cookie 收集您的访问信息（如设备、地理位置、浏览偏好），用于提供与您更相关的广告。

您可以管理广告个性化设置

第三方广告商的 Cookie 使用受其各自隐私政策约束，本站无法控制，建议您参阅相关广告商的隐私说明。

第三方服务

部分工具在运行时会调用第三方接口获取实时数据，例如：

  • 汇率工具：会调用第三方汇率 API 获取实时汇率数据，以便完成换算。此过程仅请求汇率数值，不涉及您的任何个人信息。

除上述必要的数据请求外，工具的计算过程均在本地完成。

数据安全

由于所有计算均在本地浏览器执行，您的财务数据、健康数据等不会通过网络传输，从根本上保证了敏感数据不外泄。即便使用金融类工具（如房贷、个税计算），您输入的收入、贷款金额等信息也仅存在于您的设备中。

儿童隐私

本站面向普通用户，不针对 13 岁以下儿童收集个人信息。由于我们不收集任何个人数据，儿童同样可以安全使用本站的计算工具。

政策更新

本站保留随时更新本隐私政策的权利。政策更新后，我们会在本页面发布修改后的版本并更新"最后更新"日期，建议您定期查阅以了解最新内容。继续使用本站即视为您同意更新后的隐私政策。

联系我们

如果您对本隐私政策有任何疑问或建议，可通过以下方式联系：

  • 访问 联系我们 页面提交反馈。
  • 发送邮件至 contactt1231@outlook.com 说明您的隐私相关问题。