Japan Population Decline Simulator

Privacy Policy

Last updated: April 8, 2026

jinkou.keydrop.net ("the Site") respects your privacy. This Privacy Policy explains how we collect, use, and manage information when you use our service.

1. Geographic Scope and EEA Users

This Site is operated primarily for users in Japan and is not specifically targeted at residents of the European Economic Area (EEA), the United Kingdom, or Switzerland.

When accessed from the EEA, UK, or Switzerland, this Site does not use cookies and does not deliver personalized advertisements. This minimizes data collection for users in these regions.

2. Information We Collect

2.1 Personal Information

This Site does not directly collect personal information such as names, email addresses, or physical addresses. There is no registration or login functionality.

2.2 Age Input Feature

Age information entered in the personalization feature is stored only in your browser's localStorage and is never transmitted to our servers. You can delete this data at any time through your browser settings.

2.3 Google Analytics (GA4)

We use Google Analytics 4 (GA4), provided by Google LLC, to understand usage patterns and improve our service. GA4 automatically collects:

This data is collected using cookies but does not include personally identifiable information. Data is sent to and stored on Google's servers.

For Google's data practices, see the Google Privacy Policy. To opt out, install the Google Analytics Opt-out Browser Add-on.

2.4 Google AdSense

We use Google AdSense, provided by Google LLC, to display advertisements. Google AdSense uses:

To opt out of personalized ads, visit Google Ads Settings. You can also opt out of third-party cookies at aboutads.info.

3. Cookies

3.1 What Are Cookies

Cookies are small text files stored by websites in your browser. They are used for site functionality, advertising, and analytics.

3.2 Cookies Used on This Site

TypeProviderPurposeDuration
AnalyticsGoogle AnalyticsUsage analysis & improvementUp to 14 months
AdvertisingGoogle AdSenseAd display & optimizationUp to 13 months

3.3 Managing Cookies

You can refuse or delete cookies through your browser settings. However, disabling cookies may affect the functionality of this Site.

4. Third-Party Disclosure

We do not provide user information to third parties except as required by law. However, information is transmitted to Google LLC through Google Analytics and Google AdSense as described above.

5. Minors

This Site is not specifically directed at minors. Users under 16 should use this Site with parental consent. We do not intentionally collect information from minors.

6. Data Security

All pages on this Site use HTTPS (SSL/TLS encryption). Since the Site does not store personal information on its servers, the risk of data breaches is minimized.

7. Changes to This Policy

We may update this Privacy Policy as needed. Significant changes will be posted on this page. The updated policy takes effect upon publication.


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