Privacy policy

This privacy policy describes how HDO (hereinafter referred to as "we", "us", or "our") processes our users' (hereinafter referred to as the "users") data that is collected through the use of our smartphone applications (hereinafter referred to as "our applications") and the service related to our applications.

1. Advertising
Our applications use "Google Ads", which is a third-party advertising service. Advertisers may use Cookies to reach the right audience. To disable Cookies or view the details about Google Ads, go to
"Advertising - Privacy & Terms - Google". Note that a third-party may provide contents or advertisements as well as collect information about your browser and can set or recognize cookies.

2. Disclaimer
We assume no responsibility whatsoever for the content of third party websites from our applications via links or banners. We do not take any responsibility and we are not liable for any damage caused through the use of our applications.

3. Copyright
Any use, copy, reproduction, or exploitation of all or part of content of our applications is strictly prohibited. All rights reserved.

4. Revision of the privacy policy
A part or all of "this privacy policy" may change without notice. Any important revision will be announced.

5. Contact
Contact us about any inquiry you may have regarding user information. 
Contact form



1. 広告の配信
「広告 – ポリシーと規約 – Google」をご覧ください。第三者がコンテンツおよび宣伝を提供し、訪問者から直接情報を収集し、訪問者のブラウザにCookie(クッキー)を設定したりこれを認識したりする場合があります。

2. 免責事項

3. 著作権

4. プライバシーポリシーの改定

5. お問い合わせ先