Privacy Policy

1. Introduction

Welcome to ichihu.com ("ichihu", "we", "us", or "our"). This Privacy Policy explains what information we collect when you visit https://ichihu.com, how we use it, and the choices you have. We've written it in plain English — no legal jargon — so you can actually understand what we do.

By using our website and its free tools, you agree to this Privacy Policy. If you don't agree, please discontinue use of the site.

Short version: Our calculators run entirely in your browser. We don't see, store, or transmit the numbers you enter into them. We only collect the basic, anonymous technical data that every website collects, plus advertising data handled by Google.

2. Information We Collect

We collect two kinds of information: information you give us voluntarily, and information collected automatically.

2.1 Information You Provide

We only receive personal information when you choose to provide it. This includes:

Contact information: Your name and email address if you email us or use our contact form.
Feedback: Any message, question, or suggestion you send to us.

We do not require you to create an account, log in, or provide any personal information to use our tools.

2.2 Calculator Inputs Are Private

The numbers, weights, ages, incomes, or other values you enter into our calculators are processed entirely in your browser using JavaScript. They are never sent to our servers, never logged, and never shared with anyone. Closing the tab erases everything.

2.3 Information Collected Automatically

Like virtually all websites, we automatically receive standard technical information when you visit. This includes:

Device and browser type (e.g., Chrome on Android, Safari on macOS)
Operating system
IP address (used for analytics and ad delivery, not for identifying you personally)
General geographic location (country or region level, from IP)
Pages viewed, time on page, and referring URL
Date and time of your visit

This data is aggregated and anonymous. We use it to understand what's popular, fix bugs, and improve the site.

3. How We Use Information

We use the information we collect for a small number of legitimate purposes:

To operate, maintain, and improve the website and its tools
To respond to your emails, questions, or feedback
To monitor site performance, detect bugs, and prevent abuse
To display relevant advertising through Google AdSense
To comply with legal obligations

We do not sell your personal information. We do not rent, trade, or share your data with third parties for their own marketing purposes.

4. Cookies & Tracking Technologies

Cookies are small text files that websites store on your device to remember information between visits. ichihu and our partners use cookies for the following purposes:

Type	Purpose	Who Sets It
Essential	Basic site functionality (e.g., remembering your cookie preferences)	ichihu
Analytics	Understanding traffic, popular pages, and user behavior in aggregate	Google Analytics (or similar)
Advertising	Delivering relevant ads and measuring ad performance	Google AdSense and ad partners
Preferences	Remembering user preferences like theme or language	ichihu

4.1 Managing Cookies

You can control or disable cookies through your browser settings. Most browsers let you:

See what cookies are stored and delete them individually
Block third-party cookies
Block cookies from specific sites
Block all cookies (may break some features)

For help, consult your browser's documentation: Chrome, Firefox, Safari, or Edge.

5. Google AdSense & Third-Party Advertising

ichihu is supported by advertising, primarily through Google AdSense. Google and its partners use cookies and similar technologies to serve ads based on your prior visits to this and other websites.

5.1 How Google Uses Your Data

Google uses the DoubleClick DART cookie and other advertising identifiers to:

Serve ads relevant to your interests
Limit how often you see the same ad
Measure the effectiveness of ad campaigns
Prevent fraudulent ad activity

You can learn more about how Google collects and processes data at policies.google.com/technologies/partner-sites.

5.2 Opting Out of Personalized Ads

You can opt out of personalized advertising at any time:

Google Ads Settings: adssettings.google.com
About Ads (US): optout.aboutads.info
Your Online Choices (EU): youronlinechoices.eu

Opting out does not remove ads — it only means the ads you see will be less personalized.

Note: Third-party ad vendors have their own privacy policies. We encourage you to review them. ichihu does not control and is not responsible for the data practices of Google or other ad networks.

6. Third-Party Links & Services

Our site may contain links to external websites, tools, or resources. We are not responsible for the privacy practices or content of those sites. When you click an external link, we encourage you to read that site's privacy policy before providing any personal information.

We may also use third-party service providers for:

Analytics (e.g., Google Analytics) — to understand how visitors use the site
Content delivery (e.g., Font Awesome CDN) — to load icons and assets quickly
Advertising (e.g., Google AdSense) — to display ads and fund free tools

7. GDPR — Rights for EU/EEA/UK Users

If you are located in the European Union, European Economic Area, or the United Kingdom, you have specific rights under the General Data Protection Regulation (GDPR):

Right	What It Means
Right to Access	You can request a copy of the personal data we hold about you.
Right to Rectification	You can ask us to correct inaccurate data.
Right to Erasure	You can request deletion of your personal data ("right to be forgotten").
Right to Restrict Processing	You can ask us to limit how we use your data.
Right to Data Portability	You can request your data in a portable format.
Right to Object	You can object to certain types of processing, including direct marketing.
Right to Withdraw Consent	You can withdraw consent at any time for consent-based processing.
Right to Lodge a Complaint	You can file a complaint with your local data protection authority.

Our legal basis for processing data includes: consent (for cookies and ads), legitimate interests (for security and analytics), and legal obligation (when required by law).

To exercise any of these rights, email us at contact@ichihu.com. We'll respond within 30 days.

8. CCPA — Rights for California Residents

If you are a California resident, you have rights under the California Consumer Privacy Act (CCPA):

Right to Know — what personal information we collect, use, or disclose
Right to Delete — request deletion of your personal information
Right to Opt-Out — opt out of the "sale" of personal information (we do not sell personal information)
Right to Non-Discrimination — we will not discriminate against you for exercising your rights

To exercise these rights, email contact@ichihu.com. We will verify your request and respond within 45 days.

9. Children's Privacy

ichihu is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you are a parent or guardian and believe your child has provided us with personal information, please contact us at contact@ichihu.com, and we will delete it promptly.

Some of our tools (e.g., BMI calculators) may be used by parents on behalf of their children — but the child's data is never transmitted to us.

10. Data Security

We take reasonable technical and organizational measures to protect the limited data we hold. These include:

HTTPS encryption across the entire site
Client-side processing — calculators never send your inputs to a server
Access controls — only the site operator has access to any stored data
Minimal data collection — we simply don't hold much to lose

No website can guarantee absolute security. If you become aware of any potential vulnerability, please report it to contact@ichihu.com.

11. Data Retention

We keep data only as long as we need it:

Emails: Kept until the conversation ends and any follow-up is resolved, then deleted within 12 months.
Analytics data: Retained in aggregate form; individual sessions are typically purged within 26 months by Google Analytics defaults.
Calculator inputs: Never stored — deleted automatically when you close the page.

12. Your Rights (Summary)

Regardless of where you live, we want you to have control over your data. You can:

Request a copy of any personal information we hold about you
Ask us to correct or delete your information
Opt out of analytics or personalized ads via browser settings
Email us with any privacy-related question or concern

We'll always respond in good faith and within the timeframes required by applicable law.

13. Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, or legal requirements. When we do, we'll update the "Last updated" date at the top of this page.

We encourage you to review this page periodically. If we make significant changes, we may also post a notice on our homepage. Your continued use of ichihu after changes take effect means you accept the updated policy.

14. Contact Us

If you have any questions, concerns, or requests related to this Privacy Policy or your data, please reach out to us. We're a small, independent site and we respond to every message personally.

Get in Touch

Email is the fastest way to reach us. We usually respond within 1–2 business days.

contact@ichihu.com

Data Controller

For the purposes of GDPR and other applicable privacy laws, the data controller for ichihu.com is:

Name: Syedali Mallikar
Website: https://ichihu.com
Email: contact@ichihu.com