Privacy Policy

This Privacy Policy ("Policy") describes how skcreation, the developer of the memory-training game "Memory Blink" (Japanese title: シカクキオク) ("Developer", "we", or "us"), collects, uses, and shares information through the following two versions of the game (together, the "Service"). By using the Service, you agree to the practices described in this Policy.

• App version: the app distributed on the App Store and Google Play (the "App").
• Browser version: the website https://memory.skcreation.app, including the game you can play in your browser, articles, and the short quizzes inside articles (the "Website").

This Policy is the English translation of the original Japanese version. In the event of any inconsistency between the Japanese and English versions, the Japanese version shall prevail.

Neither version asks you for your name, email address, phone number, or similar information, and neither has accounts or sign-in. The main differences between the two versions are summarized below. The App version is covered in Section 1 and the browser version in Section 2.

1. Information Collected in the App Version

1.1 Information Stored on Your Device

• Game records (clear times, per-level progress and completion status, consecutive-day play streaks, and other activity records).
• App settings and preferences (such as notification on/off).

This information is stored only on your device (in the App's local storage) and is not transmitted to our servers or to any third party. If you delete the App, this information is removed from your device.

1.2 Information Collected in Connection with Advertising

The App is provided free of charge and displays ads using Google AdMob, provided by Google LLC ("Google"), to support its operation. To deliver, display, and measure ads and to prevent fraud, Google and parties involved in ad delivery may collect and use the following information in connection with your use of the App:

• Advertising identifiers (such as the Android Advertising ID [AAID] and the iOS Identifier for Advertisers [IDFA]).
• IP address and coarse location (country/region level) inferred from the IP address.
• Device information (device model, OS version, language and region settings, screen size).
• Information about ad interactions, such as impressions and clicks.

The handling of this information is governed by the privacy policies of Google and the other providers involved. For information about how Google uses this data, please see the Google Privacy Policy and How Google uses information from sites or apps that use its services.

1.3 Consent Management (UMP)

The App uses Google's User Messaging Platform (UMP). In regions where the EU General Data Protection Regulation (GDPR) or similar laws apply, a consent form is presented before ads are requested. Depending on your consent, you will be shown either personalized or non-personalized ads.

1.4 App Tracking Transparency on iOS (ATT)

On iOS, using the advertising identifier (IDFA) for personalized ads may require permission under Apple's App Tracking Transparency (ATT) framework. The App may request such permission where necessary. If you do not grant permission, you will be shown non-personalized ads.

1.5 Notifications

The App may use local notifications (notifications scheduled on your device) to encourage continued use. These notifications are generated and managed entirely on your device; the App does not use a push-notification server or device token and does not transmit any information externally in connection with notifications. You can turn off notifications from your device settings or from within the App.

1.6 Information Collected for Analytics and Crash Reporting

The App uses Firebase Analytics and Firebase Crashlytics, provided by Google, to understand usage and to detect and fix problems and improve quality. Through these services, the following information is sent to Google: an anonymous app instance identifier assigned per app installation, device information (device model, OS version, language and region settings), usage events such as screen views and interactions within the App, and crash information when the App crashes (such as the location of the crash, stack traces, and device state at that time). This information does not include data that directly identifies you, such as your name. For information about how Google uses this data, please see the Google Privacy Policy.

2. Information Collected in the Browser Version

2.1 Information Stored in Your Browser

• Game records (per-level progress and completion status, best times, the days you played, and other activity records).
• Game settings (such as sound effects on/off).

This information is stored only in your browser's storage (localStorage) and is never sent to our servers. If you clear your browser's site data, this information is deleted. Records in the browser version and the App version are separate and do not sync.

We do not save the results of the quizzes inside articles. When you start or finish a quiz, we send an event to the analytics service described in Section 2.2, including the number of cards used and the time taken in seconds. These events are not linked to information that identifies you.

2.2 Analytics (Google Analytics 4)

The Website uses Google Analytics 4 (gtag.js), provided by Google, to understand how the Website is used and to improve it. Google Analytics uses cookies (such as _ga) and similar technologies, and sends the following information to Google:

• A random identifier stored in a cookie (assigned per browser).
• The URL and title of pages you view, the referring page or site, and the time of your visit.
• Browser and device information (browser type, OS, screen size, language settings).
• Approximate location (country, region, or city) inferred from your IP address. According to Google, Google Analytics 4 does not log or store IP addresses.
• Events about how you interact with the Website, including starting and finishing a quiz in an article (with the number of cards and seconds described above).

This information does not include data that directly identifies you, such as your name. For information about how Google uses this data, please see the Google Privacy Policy and How Google uses information from sites or apps that use its services. Section 9.2 explains how to opt out of Google Analytics.

2.3 Advertising (Google AdSense)

To support its operation, the Website plans to display ads through Google AdSense, provided by Google. When ads are shown, cookies are used as follows:

• Third-party vendors, including Google, use cookies to serve ads based on your prior visits to the Website or other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to the Website and/or other sites on the Internet.
• To deliver, display, and measure ads and to prevent fraud, cookie identifiers, IP address, browser and device information, and ad interaction data (such as impressions and clicks) may be sent to Google and other parties involved in ad delivery.

You can opt out of personalized advertising by visiting Google Ads Settings (https://adssettings.google.com). You can also opt out of third-party vendors' use of cookies for personalized advertising by visiting www.aboutads.info (or www.youronlinechoices.eu if you are in the EEA). For more on how Google uses advertising cookies, see How Google uses information from sites or apps that use its services and How Google uses cookies in advertising.

2.4 Cookie Consent

The Website uses Google Consent Mode (v2). For visitors from the European Economic Area (EEA), the United Kingdom, and Switzerland, analytics and advertising storage is set to "denied" by default, so these cookies are not stored until you give consent. In this state, information about page views may still be sent to Google without cookies. Once ads are shown, we will ask for consent in these regions through a Google-certified consent management platform (CMP). You can change or withdraw your consent at any time through the CMP's consent settings (once available) or by deleting your cookies.

2.5 Delivery and Security (Cloudflare)

The Website is delivered using services provided by Cloudflare, Inc. ("Cloudflare"). When you visit the Website, Cloudflare processes access logs that include your IP address, browser type (user agent), the URL you requested, and the time of the request. This information is used to deliver the Website and to protect it from abuse and attacks. Cloudflare may also set cookies that are strictly necessary for security. For details, please see Cloudflare's Privacy Policy.

2.6 What the Browser Version Does Not Collect

The browser version has no accounts, sign-in, payments, or notifications, so it does not collect purchase information or any information used for notifications.

3. Information You Provide When Contacting Us

If you contact us by email or through our Google Form, we receive the email address, name, and message you choose to provide. We use this information only to respond to your inquiry.

4. How We Collect Information

• Automatically on your device or in your browser, as you play the App or the browser version.
• Automatically via the Google Mobile Ads (AdMob) SDK, in connection with the display of ads in the App.
• Automatically via the Firebase SDK, in connection with analytics and crash reporting in the App.
• Automatically via Google Analytics (gtag.js), Google AdSense, and Cloudflare, using cookies and similar technologies, when you visit the Website.
• Directly from you, when you contact us.

5. How We Use Information

We use the information we collect to:

• Provide, maintain, and operate the Service (including saving and displaying records and managing progress).
• Deliver, display, and measure ads in the Service and prevent fraud.
• Understand how the Service is used, diagnose and fix bugs, and improve its content and quality.
• Deliver the Website reliably and protect it from abuse and attacks.
• Respond to inquiries from users.
• Comply with applicable laws and respond to lawful requests.

6. Sharing and External Transmission

6.1 Sharing with Third Parties

We do not share your information with third parties except:

• with your consent;
• to comply with applicable laws or respond to lawful requests from courts, law enforcement, or other public authorities;
• when necessary to protect the life, body, or property of any person and it is difficult to obtain your consent;
• with the service providers described in Section 6.2, to the extent necessary to fulfill the purposes described in this Policy;
• in connection with a corporate transaction such as a merger, acquisition, or sale of assets.

6.2 Service Providers and International Transfers

To operate the Service, we transmit certain information to the following service providers. These providers may be located outside Japan, including in the United States, and information may be transferred to and stored in those countries. The browser-version entries also serve as our public notice of external transmission under Article 27-12 of Japan's Telecommunications Business Act.

Transmission of information to service providers located in the United States may constitute a cross-border transfer of personal data to a third party in a foreign country under Article 28 of Japan's Act on the Protection of Personal Information. Such transfers are made on the basis of your consent to this Policy. Information about the personal data protection regime of the United States, and about the safeguards each provider has implemented, is available on request through the contact in Section 12.

7. Paid Plan (Subscription; App Version Only)

The App offers a paid plan (an auto-renewable monthly subscription) that removes ads. When you purchase, restore, or start a trial, payment is processed by Apple (App Store) or Google (Google Play). We also use the subscription management service provided by RevenueCat, Inc. to manage purchase status, and information such as transaction ID, product ID, subscription status, and an anonymous app-generated user identifier is processed through Apple/Google and RevenueCat. We use this information to verify and maintain your entitlement. We do not collect credit card numbers or other payment instrument details directly. The browser version has no payments, and the paid plan does not remove ads from the browser version.

8. Retention

• Information stored on your device (Section 1.1) is retained on your device until you delete it or uninstall the App.
• Information stored in your browser (Section 2.1) is retained in your browser until you clear its site data. Your browser's settings or behavior may also clear it automatically.
• The retention of advertising-related information (Sections 1.2 and 2.3) is governed by the policies of Google and the other providers involved.
• The retention of analytics and crash-reporting information (Sections 1.6 and 2.2) is governed by Google's policies and the data retention period we have set in Google Analytics.
• The retention of delivery and security information (Section 2.5) is governed by Cloudflare's policies.
• Information you provide when contacting us (Section 3) is kept for as long as needed to respond, and then deleted.

9. Your Rights and Choices

9.1 App Version

You can manage ad personalization from your device settings (iOS: Settings → Privacy & Security → Tracking, or Apple Advertising; Android: Settings → Google → Ads), including resetting your advertising identifier and opting out of personalized ads. You can also uninstall the App to prevent any further transmission of advertising-related information.

9.2 Browser Version

• You can block or delete cookies in your browser settings. Note that if you also block site data, your game records may not be saved.
• You can stop Google Analytics from collecting data by installing the Google Analytics Opt-out Browser Add-on.
• You can opt out of personalized ads through Google Ads Settings or www.aboutads.info (see Section 2.3).
• If you visit from the EEA, the UK, or Switzerland, you can change or withdraw your consent (see Section 2.4).

9.3 Both Versions

Where applicable law (including the EU/UK GDPR and the CCPA/CPRA) grants you rights such as access, deletion, or opt-out, you may exercise them by contacting us at the address in Section 12. We do not "sell" personal information as that term is defined under the CCPA/CPRA. If personalized ads are shown on the Website, the use of advertising cookies may be considered "sharing" for cross-context behavioral advertising under the CCPA/CPRA; you can opt out using the choices in Section 9.2. We may ask for additional information to verify your identity.

10. Children's Privacy

The Service is not primarily directed to children under 13 (or the equivalent age under applicable local law). We do not knowingly collect personal information from such children. If we become aware that we have collected information from a child under 13 without verifiable parental consent, we will promptly delete it. Parents or guardians who believe their child may have provided information through the Service may contact us using the information in Section 12.

11. Security

We take reasonable technical and organizational measures to protect information against loss, misuse, unauthorized access, disclosure, alteration, and destruction. Communication between the App and external services, and between your browser and the Website, is encrypted in transit. However, no method of transmission over the Internet or electronic storage is fully secure, and we cannot guarantee absolute security.

12. Contact Us

For questions about this Policy or to exercise any of your rights, please contact:

Operator

skcreation

Email

[email protected]

Contact form

Google Form

13. Changes to This Policy

We may update this Policy from time to time to reflect changes in applicable law, the Service's functionality, or our practices. The updated Policy becomes effective when posted on this page. If the changes are material, we will make reasonable efforts to provide advance notice in the App, on the Website, or by other appropriate means.

14. Governing Law

This Policy is governed by the laws of Japan, without regard to its conflict of laws principles.