Privacy Policy

Last Updated: October 18, 2026

This Privacy Policy (the "Policy") describes how Kakumei ("we," "our," or "the Company") collects, uses, and protects personal information of users ("Users") of our applications ("the App").

1. Definitions

"Personal Information" refers to information about a living individual that can identify a specific individual (including information that can identify a specific individual when combined with other information).

"Personal Data" refers to personal data as defined by applicable data protection laws.

2. Scope

This Policy applies to personal information collected in connection with the use of the App.

3. Controller

The controller of personal information for the App is as follows:

Kakumei

Representative: Masatoshi Fujiyama

E-mail: [email protected]

4. Collection Methods, Information Collected, Purposes of Use, and Legal Basis

We collect personal information through the following methods. The information collected, purposes of use, and legal basis are as follows:

(1) Information Directly Provided by Users

  • Information obtained through contact forms (name, email address, inquiry content, etc.)
  • Purpose of use: Responding to inquiries, providing and improving services
  • Legal basis: Contract performance, legitimate interests

(2) Information Automatically Collected When Users Use the App

  • Access log information (IP address, browser type, access date and time, etc.)
  • Information collected through cookies and similar technologies
  • Purpose of use: Operating and improving the App, ensuring security
  • Legal basis: Legitimate interests

(3) Advertising

Apps that show ads do so through Google AdMob, a service provided by Google LLC. To show and measure ads, Google AdMob may collect the advertising identifier (IDFA, only if you allow tracking), IP address, device type, OS version, approximate location, and ad view and tap history. This information is handled under Google's privacy policy.

  • Purpose of use: Serving ads, measuring ad performance, preventing fraud
  • Legal basis: Consent (tracking permission and the consent form), legitimate interests
  • To learn how Google uses this data, see How Google uses information from sites or apps that use our services.
  • The IDFA is collected only if you allow tracking in the App Tracking Transparency dialog. If you do not, ads are still shown but are not based on your interests. You can change this at any time in Settings > Privacy & Security > Tracking on your iPhone.
  • Users in the European Economic Area, the UK, Switzerland and similar regions are shown a consent form before ads. You can change your choice at any time from "広告のプライバシー設定" (Ad privacy settings) in the app's Settings.

(4) Information Stored Only on Your Device

  • Data and settings you enter or record in the App are, as a rule, stored only on your device, and we do not collect them. If a feature requires sending data to a server, we will tell you in the App or in this Policy
  • Data on your device is removed when you delete the App (except where it is included in your device backups)

5. Third-Party Provision

We will not provide personal information to third parties without the user's consent, except in the following cases:

  • 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 for improving public health or promoting the healthy upbringing of children

For apps that show ads, information collected by the ad provider is described in Section 4 (3). We choose providers of external services used in the App that apply protections equal to or greater than those in this Policy.

6. Security Measures

We take appropriate technical and organizational security measures to protect personal information from unauthorized access, loss, destruction, falsification, and leakage.

7. User Rights

Users have the following rights regarding their personal information:

  • Right to access and obtain a copy of personal information
  • Right to correct inaccurate personal information
  • Right to delete personal information
  • Right to restrict processing of personal information
  • Right to data portability
  • Right to object to processing

To exercise these rights, please contact us at the email address provided in Section 3.

8. Contact

For inquiries regarding this Privacy Policy or the handling of personal information, please contact:

Kakumei

E-mail: [email protected]

9. Changes to This Policy

We may change this Policy from time to time. When changes are made, we will notify users by updating the "Last Updated" date at the top of this page.