Piabase Privacy Policy

Piabase (the "Service") sets forth the following privacy policy regarding the handling of users’ personal information and related data (the "Policy").

1. Information We Collect

The Service may collect the following information:

Information provided through external login: identifiers linked to Google accounts, email addresses, display names, profile image URLs, and similar data (depending on what the external service provides)
Account information: nickname, user ID, and similar data
Content information: impressions, practice status, comments, and similar posts
Access information: cookies, local storage identifiers, IP addresses, browser information, referrers, access timestamps, and similar data (including when analytics tools are used)

2. Purpose of Use

Collected information is used for the following purposes:

Provision of the Service, identity verification, authentication (login), and prevention of unauthorized use
Storage and display of posts and related content, and improvement of the user experience (including ranking display and search optimization)
Responding to inquiries and sending important notices
Responding to violations of the Terms of Service and maintaining security
Analysis for service improvement and quality enhancement (including anonymized and aggregated statistics)

3. Cookies and Similar Technologies

The Service may use cookies and similar technologies for the following purposes:

Maintaining login status and providing necessary site functions
Improving convenience, performance, and the quality of the Service
Providing browser-based features such as the piece comparison list. The comparison list may store only selected piece identifiers in local storage and does not include personal information such as names or email addresses.
Measuring site usage and analyzing aggregated trends through Google Analytics
Displaying advertisements, measuring ad performance, preventing fraud and abuse, and, where permitted, delivering personalized ads through Google AdSense
Users can disable cookies in their browser settings, but some features of the Service may not be available if they do so.

4. Provision to Third Parties

The Service does not provide personal information to third parties except in the following cases:

When the user has given consent
When required by law
When necessary to protect life, body, or property and it is difficult to obtain the user’s consent
When particularly necessary to improve public health or promote the sound upbringing of children and it is difficult to obtain the user’s consent
When cooperation with a government agency or similar body is necessary and obtaining consent would likely impede that cooperation

5. Outsourcing

The Service may outsource the handling of information to external service providers to the extent necessary for server operations, analytics, and similar tasks. In that case, appropriate vendors are selected and appropriately supervised.

6. Scope of Public Posts

Posts and similar content created by members of the Service (such as impressions and comments) may be made public on the Service. The scope of public information follows the Service’s screen display and specifications.

7. Handling on Withdrawal

When a member withdraws, personal information linked to that member is deleted, except where retention is required by law.
However, posts and similar content (such as impressions and comments) may remain for quality maintenance and record-keeping. In such cases, those posts are switched to anonymous display such as "Deleted Account."

8. Security Control Measures

The Service takes necessary and appropriate measures to prevent leakage, loss, or damage of personal information and to otherwise manage personal information safely.

9. Requests for Disclosure, Correction, Deletion, and Similar Actions

Users may request disclosure, correction, suspension of use, deletion, and similar actions regarding their personal information in accordance with applicable laws. For details on the procedure, please contact the inquiry desk below.

10. External Services (Google Login)

The Service uses external services such as Google for external login. Please review the privacy policies of the respective external services for information handling on their side.

11. Google Analytics, Google AdSense, and External Data Transmission

The Service uses, or may use, Google Analytics and Google AdSense provided by Google LLC and its affiliates. When these services are used, information may be sent to Google.

Information that may be sent: cookie identifiers and similar identifiers, IP addresses, viewed page URLs, referrers, browser and device information, access timestamps, approximate location information, and information related to ad impressions, ad clicks, and other interactions
Purpose of transmission: measuring usage, improving the Service, displaying advertisements, measuring ad performance, preventing fraud and abuse, and delivering personalized or non-personalized ads according to the user’s consent status and applicable law
Google may process this information in accordance with its own policies. For details, please refer to How Google uses information from sites or apps that use our services.
Users can control ad personalization through Google Ad Settings and can also control cookies through browser settings.
For users in the EEA, the United Kingdom, and Switzerland, the Service uses Google’s certified consent management platform or another Google-certified CMP integrated with the IAB Transparency and Consent Framework, where required, to collect and manage consent choices for advertising and analytics.

12. Changes to This Policy

The Service may change this Policy in response to legal changes or operational policy reviews. If there are material changes, the Service will notify users by posting them on the Service or using similar methods.

13. Contact

For inquiries regarding this Policy, please contact us below.

Piabase Team
https://piabase.com/en/contact/

Effective date: 01/06/2026