YYUKAI
YUKAI · REF-001/CORP Poland

Privacy Policy for Historical Archives & Coin Catalogs

This Privacy Policy applies to Coin Archive, a mobile numismatic catalog utility by YUKAI SP Z O O. The app is designed for personal coin records, condition notes, grading notes, and collection progress without registration or account authorization.

Collection StatusLocal
No account requiredNo personal data collected
Numismatic Cabinet sample records
VF
Liberty Head Nickel1907
United States5 cents
EF
Maria Theresa Thaler1780
Austria1 Thaler
AU
Sovereign1817
United Kingdom1 Pound
F
Denarius69 AD
Roman Empire1 Den.
Mint Year ·Country ·Material ·Grade ·Denomination

Policy Scope

Coin Archive is a personal catalog utility.

No Registration

No accounts or login

The Application does not require registration, account creation, user profiles, or authorization to use its normal features.

No Collection

No personal data collected

The Application does not collect, log, retain, sell, or share personal information through normal use.

Local Records

User-controlled archive

Coin entries and catalog details are intended to remain on the user’s device unless a future feature clearly states otherwise.

Responsible Use Notice

Not a grading or appraisal service.

Coin Archive is a collection documentation and cataloging utility. It is not an official coin grading service, authentication service, appraisal service, investment advisor, banking service, insurance service, marketplace, auction platform, or replacement for qualified numismatic review.

Catalog Examples

  • Mint year, country, material, denomination.
  • Condition notes, wear patterns, grading notes.
  • Custom series, missing pieces, completion rates.
  • Digital gallery records and app settings.

Effective date · 2026-06-19

Privacy Policy

This privacy policy applies to the Coin Archive app for mobile devices, together with any related services operated by YUKAI SP Z O O (collectively, the “Application”). YUKAI SP Z O O is referred to as the “Service Provider”.

What information does the Application obtain and how is it used?

The Application does not collect, log, or store any personal information when you download and use it. Registration is not required. If the Application is used with an active internet connection, technical protocol data, such as an ephemeral IP address, may be transmitted to facilitate network connectivity, but this data is not retained or used for tracking.

Local-first statement: if coin entries, coin photos, mint years, countries of origin, material compositions, denominations, condition notes, wear pattern notes, structural details, grading notes, library filters, collection series, missing piece lists, completion rates, digital gallery records, or app settings are saved by the Application, they remain local to the user’s device unless a future feature clearly states otherwise.

Does the Application collect precise real-time location information?

No. This Application does not collect precise information about the location of your mobile device.

Do third parties see or have access to information obtained by the Application?

Since the Application does not collect any information through normal use, no personal data is shared with third parties.

Data Retention

The Service Provider does not retain personal data collected from the Application because the Application does not collect personal data through normal use. Any catalog records created inside the Application are intended to remain on the user’s device and are controlled by the user.

If you voluntarily contact YUKAI by email or another external channel, the information you provide may be retained only for as long as necessary to respond to your request, maintain reasonable business records, or comply with applicable legal obligations.

Data Deletion

Because the Application does not collect or store personal information on YUKAI servers, there is no server-side application data for YUKAI to delete. Users can remove locally stored app data by deleting records inside the Application, clearing local app data through device settings where available, or uninstalling the Application.

If you voluntarily provided information to the Service Provider outside the Application, you may request deletion by contacting support@yukai.ink.

What are my opt-out rights?

Since the Application does not collect personal information through normal use, uninstalling it simply removes the Application from your device.

Children

The Application is not intended for children under 13 years of age, or such higher age as required by applicable law. The Service Provider does not knowingly solicit data from children or market to them. Since the Application does not collect personal information through normal use, children’s data is not at risk from use of the Application alone.

Security

Because the Application does not collect personal data, the risk of personal data exposure is minimal. However, no security system is completely secure. The Service Provider implements reasonable safeguards to protect systems and any data it holds.

Data Breach Notification

Since the Application does not collect personal data through normal use, the risk of a data breach affecting your personal data is minimal. If a breach occurs involving any data you have voluntarily provided, the Service Provider will notify you as required by applicable law.

Changes

The Service Provider may update this Privacy Policy from time to time. The Service Provider will notify users of material changes by posting the updated Privacy Policy with an effective date. Where required by law, the Service Provider will seek consent to material changes before they take effect.

Your Consent

If you voluntarily provide information to the Service Provider and processing is based on consent, you may withdraw that consent at any time without affecting processing carried out before withdrawal.

Contact Us

If you have any questions regarding privacy while using the Application, or have questions about the practices, please contact YUKAI:

YUKAI
61 c-2 Ul. Na Piaski Zielonki, 32-087 Poland
Phone: +48 884 383 104
Email: support@yukai.ink
info@yukai.ink
development@yukai.ink