PaperDPI / K's App

Privacy Policy

Created: June 6, 2026

KENTA OSAWA, operating under the brand name K's App, provides PaperDPI as a DPI calculator whose core calculation works offline.

This Privacy Policy applies to PaperDPI distributed through the Apple App Store and Google Play.

1. Developer Information

2. Scope

This Policy applies to information handled in connection with PaperDPI.

If you move from the app, store listing, or support page to an external service or website, the policy of that external provider applies.

3. Information Handled by the App

3-1. Information entered by the user

Users may manually enter the following values in the app:

These values are used only on the device to calculate DPI. They are not sent to the developer's server.

3-2. Information stored on the device

PaperDPI does not permanently store entered values or calculation results. Values are reset when the app is closed or restarted.

3-3. Information collected automatically

PaperDPI does not automatically collect user information, including:

3-4. Personal or sensitive data

PaperDPI does not collect or share personal data or sensitive user data.

PaperDPI does not import, upload, scan, or analyze image files.

3-5. Third-party services and SDKs

PaperDPI does not use advertising SDKs, analytics SDKs, tracking SDKs, or crash reporting SDKs.

The app may include links to external privacy policy, terms, or support pages. After moving to an external page, the handling of information is governed by the relevant service, browser, or provider policy.

4. Purpose of Use

PaperDPI uses entered pixel dimensions and paper size only to calculate DPI on the device and show an estimated print quality status.

The developer does not collect, store, analyze, use for advertising, track, or provide user information to third parties.

If you contact the developer, the email address and message you provide will be used only to respond to your inquiry.

5. Sharing and Third-Party Disclosure

The developer does not share user information with third parties except where required by law.

PaperDPI does not use third-party SDKs for advertising, analytics, behavior tracking, or crash reporting.

6. Data Storage

PaperDPI handles data as follows:

7. Security

PaperDPI is designed not to collect or store unnecessary user information.

If information is provided through an inquiry, the developer will handle it appropriately to prevent leakage, loss, damage, or unauthorized access.

8. Retention and Deletion

Because PaperDPI does not save entered values or calculation results, there is no saved in-app data to delete.

Uninstalling the app removes the app's local state from the device.

Information received through inquiries is retained only as long as necessary to respond and is deleted appropriately when no longer needed.

9. User Requests

PaperDPI does not provide accounts, saved input data, or history features, so there is no saved in-app data for users to view, edit, or delete.

For requests related to inquiry messages, contact:

The developer may verify your identity where necessary.

10. Account Deletion

PaperDPI does not provide account creation. There is no in-app account to delete.

11. Use by Minors

Minors should use the app with consent from a parent or guardian where required.

12. Changes to This Policy

The developer may revise this Policy as needed due to legal changes, app changes, or other reasons.

Important changes may be announced in the app, store listing, or public page.

13. Contact

For questions about this Privacy Policy, contact: