Last updated: August 10, 2026
The Japanese version of this policy is the authoritative (governing) version. If there is any conflict or discrepancy between this translation and the Japanese version, the Japanese version controls. 日本語版はこちら
Countdown Day (“the App”) is a mobile app that shows a live countdown to the dates that matter to you. This policy explains what information is collected when you use the App and how it is handled.
The events you register (name and date/time) and your theme (light/dark) selection are stored only on your device. This information is never transmitted externally and is deleted when you uninstall the App.
The App does not collect any personally identifying information such as your name, email address, phone number, or address. No account registration is required.
The App displays ads using Google AdMob. AdMob may collect and process the following on Google’s behalf, for ad delivery and fraud prevention:
This information is processed under Google’s own privacy policy. The App’s developer does not separately obtain or store this information.
Regarding tracking on iOS: The App requests App Tracking Transparency (ATT) permission on iOS. Before ads are initialized, you may see Google’s User Messaging Platform (UMP) consent form followed by the ATT system dialog. Only if you choose “Allow” may IDFA be used to track you across other companies’ apps or websites. If you choose “Ask App Not to Track”, IDFA is not used for tracking purposes (regardless of your choice, other information described above may still be processed by AdMob for ad delivery and fraud prevention).
The following are included in the App’s build but are disabled in the current version and do not collect any information:
This policy will be updated before either of these is enabled.
Collected information is used by Google for ad delivery and fraud prevention. The developer does not use this information for usage analytics or for any purpose other than advertising.
The information described above is processed by Google under its own privacy policies.
No information is disclosed to any third party other than the above.
The App is not directed at children under 13. We do not knowingly collect information from children under 13.
If this policy is changed, this page will be updated and the “last updated” date revised. Material changes will also be announced within the App.
For questions about this policy, please contact:
Contact: gendaijin44435@gmail.com