Privacy Policy

Effective Date: July 30, 2026
Last Updated: July 30, 2026

CK My Apps respects your privacy. This Privacy Policy explains how Christos Kazantzoglou, doing business as “CK My Apps” (“CK My Apps,” “we,” “us,” or “our”), collects, uses, shares, and protects personal information when you:

• Visit or interact with the CK My Apps publication hosted at ckmyapps.substack.com;

• Subscribe to or receive our newsletters and email communications;

• Comment on, respond to, or otherwise interact with our content;

• Contact us for information, technical support, or other assistance; or

• Interact with services, forms, downloads, or other resources that link to this Privacy Policy.

This Privacy Policy applies to personal information that we control. Substack and other third-party services may separately collect and process information under their own privacy policies.

Individual CK My Apps applications may have separate privacy policies describing how information is handled within those apps. If an app-specific privacy policy conflicts with this Privacy Policy regarding data collected through that app, the app-specific policy will control.

1. Who We Are

The publisher and data controller responsible for the personal information covered by this Privacy Policy is:

Christos Kazantzoglou
Doing business as: CK My Apps
Email: ceditor286@gmail.com
Mailing address: ceditor286@gmail.com

For privacy questions or requests, please contact us using the information above.

2. Information We Collect

The personal information we collect depends on how you interact with CK My Apps.

2.1 Information You Provide Directly

We may collect information that you voluntarily provide, including:

• Your email address;

• Your name, username, or profile information;

• Subscription preferences;

• Comments, replies, reactions, survey answers, and other content you submit;

• Messages you send to us;

• Technical-support requests;

• Screenshots, diagnostic information, device details, or files you choose to provide;

• Feedback, feature requests, bug reports, or reviews;

• Billing or transaction-related information associated with a paid subscription; and

• Any other information you voluntarily provide.

Please do not send sensitive personal information unless it is reasonably necessary for us to respond to your request.

When requesting technical support, avoid sharing passwords, authentication codes, complete payment-card information, government identification numbers, private encryption keys, or other highly sensitive information.

2.2 Subscription Information

When you subscribe to CK My Apps through Substack, we may receive information such as:

• Your email address;

• Your subscription status;

• The date you subscribed;

• Whether your subscription is free or paid;

• Subscription tier or plan information;

• Referral source;

• Email-delivery status;

• Newsletter open and click information;

• General engagement information; and

• Other subscriber information made available through Substack’s publisher tools.

Substack may collect additional account, device, payment, and usage information independently under its own privacy practices.

2.3 Payment Information

If paid subscriptions, products, or services are offered, payments may be processed by Substack and its payment-processing providers.

We generally do not directly receive or store your complete payment-card number. We may receive limited transaction information, such as:

• Your payment status;

• Subscription plan;

• Transaction date;

• Amount paid;

• Currency;

• Renewal or cancellation status; and

• Limited billing or customer-identification information.

Payment providers process payment information according to their own privacy policies and legal obligations.

2.4 Information Collected Automatically

When you visit or interact with the Site, Substack and other service providers may automatically collect technical and usage information, including:

• Internet Protocol address;

• Browser type and version;

• Device type;

• Operating system;

• Language and regional settings;

• Approximate location derived from an IP address;

• Referring and exit pages;

• Pages or posts viewed;

• Links clicked;

• Date and time of access;

• Session duration;

• Email opens and interactions;

• Cookie or similar technology identifiers; and

• Diagnostic, security, and performance information.

Some of this information may be aggregated or de-identified so that it no longer reasonably identifies an individual.

2.5 Information From Third Parties

We may receive information from third parties, including:

• Substack;

• App stores and software-distribution platforms;

• Payment processors;

• Analytics providers;

• Email-delivery services;

• Customer-support providers;

• Social-media platforms;

• Referral partners; and

• Users who contact us on another person’s behalf.

The information we receive depends on the third party’s policies, your privacy settings, and the permissions you provide.

3. How We Use Personal Information

We may use personal information to:

• Operate, maintain, and administer CK My Apps;

• Deliver newsletters, posts, updates, and subscription benefits;

• Manage free and paid subscriptions;

• Process and administer transactions;

• Respond to questions, comments, and support requests;

• Investigate bug reports and technical issues;

• Provide troubleshooting instructions;

• Communicate about app updates, new features, security issues, and service changes;

• Personalize content and communications;

• Understand readership, engagement, and Site performance;

• Improve our content, apps, products, and services;

• Conduct surveys and collect feedback;

• Prevent spam, fraud, abuse, and unauthorized access;

• Protect our rights, users, systems, and services;

• Enforce our Terms of Service and other policies;

• Comply with legal, tax, accounting, and regulatory obligations;

• Establish, exercise, or defend legal claims; and

• Carry out any other purpose disclosed to you when the information is collected.

We may also use aggregated or de-identified information for analytics, research, reporting, and service improvement.

4. Legal Bases for Processing

If European Economic Area, United Kingdom, Swiss, or similar data-protection laws apply, we process personal information under one or more of the following legal bases:

4.1 Performance of a Contract

We may process information when necessary to:

• Manage your subscription;

• Deliver requested content;

• Provide paid features or services;

• Respond to a support request; or

• Fulfill another agreement with you.

4.2 Legitimate Interests

We may process information when necessary for legitimate business interests, including:

• Operating and improving CK My Apps;

• Understanding how readers use our content;

• Protecting our systems and users;

• Preventing fraud and abuse;

• Responding to inquiries;

• Managing publisher-reader relationships; and

• Promoting related content or services.

We consider whether these interests are overridden by your privacy rights before relying on this legal basis.

4.3 Consent

We may rely on your consent when:

• You subscribe to optional marketing communications;

• You accept nonessential cookies or tracking technologies;

• You voluntarily submit certain information; or

• Applicable law otherwise requires consent.

You may withdraw consent at any time. Withdrawal does not affect processing that was lawful before consent was withdrawn.

4.4 Legal Obligations

We may process information when necessary to comply with applicable laws, court orders, regulatory requirements, tax obligations, or valid government requests.

5. Newsletters and Email Communications

When you subscribe, we use your email address and subscription information to send you:

• Newsletter posts;

• App announcements;

• Product or feature updates;

• Technical notices;

• Support-related communications;

• Subscription information; and

• Other communications associated with CK My Apps.

You may unsubscribe from nonessential emails at any time by selecting the unsubscribe link in an email or managing your Substack subscription settings.

Even after you unsubscribe from marketing or newsletter emails, we may continue to send necessary administrative communications, such as payment confirmations, security notices, responses to your requests, or legally required notices.

Email messages may contain technologies that indicate whether a message was delivered, opened, or clicked. We may use this information to understand engagement and improve our communications, subject to applicable law and available privacy controls.

6. Cookies and Similar Technologies

Substack and other service providers may use cookies, pixels, local storage, software-development kits, and similar technologies to:

• Keep the Site functioning;

• Remember preferences;

• Maintain security;

• Prevent abuse;

• Measure traffic and engagement;

• Understand how content is used;

• Track newsletter performance; and

• Improve the user experience.

Some cookies are necessary for Site operation. Others may be used for analytics, personalization, or related purposes.

You may be able to control cookies through:

• Your browser settings;

• Your device settings;

• Cookie-consent tools provided on the Site;

• Substack account settings; or

• Privacy controls offered by applicable third parties.

Blocking certain cookies may affect Site functionality.

7. How We Share Personal Information

We do not sell your personal information for money.

We may share personal information in the following circumstances.

7.1 Substack

CK My Apps is hosted through Substack. Substack provides services such as:

• Website hosting;

• Newsletter delivery;

• Subscriber management;

• Account management;

• Analytics;

• Comment and community features;

• Payment administration; and

• Security and fraud prevention.

Substack may process information on our behalf and may also process certain information for its own purposes under its own privacy policy.

7.2 Service Providers

We may share information with companies or contractors that help us operate, including providers of:

• Hosting and cloud storage;

• Email delivery;

• Customer support;

• Analytics;

• Payment processing;

• Security and fraud prevention;

• Error monitoring;

• Professional consulting;

• Legal services; and

• Accounting or tax services.

These providers may access personal information only as reasonably necessary to perform services for us and subject to applicable contractual or legal requirements.

7.3 App Stores and Technology Platforms

When you access or download an app through an app store or other platform, that platform may independently collect and process information.

We may receive limited information from those platforms, such as:

• Purchase status;

• Subscription status;

• Country or region;

• Aggregated usage information;

• Crash reports;

• Reviews; and

• Technical diagnostics.

The platform’s own privacy policy governs its independent processing.

7.4 Legal and Safety Disclosures

We may disclose personal information when we reasonably believe it is necessary to:

• Comply with a law, regulation, court order, subpoena, or legal process;

• Respond to a valid request from a government authority;

• Investigate fraud, abuse, security threats, or unlawful activity;

• Protect the rights, safety, and property of CK My Apps, our users, or others;

• Enforce our agreements and policies; or

• Establish, exercise, or defend legal claims.

7.5 Business Transfers

If CK My Apps or its assets are involved in a merger, acquisition, financing, reorganization, bankruptcy, sale, or transfer, personal information may be disclosed or transferred as part of that transaction.

Where required, we will provide notice or seek consent before information becomes subject to a materially different privacy policy.

7.6 With Your Direction or Consent

We may share personal information when you direct us to do so, request an integration with another service, or otherwise give consent.

8. Advertising and Sale or Sharing of Personal Information

CK My Apps does not sell personal information for monetary compensation.

Option A — No behavioral advertising:
We do not use personal information for cross-context behavioral advertising and do not knowingly “share” personal information for behavioral advertising as that term may be defined under California privacy law.

Substack or third-party websites may independently conduct advertising or tracking activities under their own policies. Their independent activities are not controlled by CK My Apps.

9. Affiliate Links

CK My Apps content may include links to third-party products, apps, services, or marketplaces.

Some links may be affiliate links, meaning we may receive a commission or other benefit if you click a link or make a purchase. The price you pay is not necessarily affected.

Third-party merchants and affiliate networks may use cookies or similar technologies to identify referrals and process commissions. Their data collection is governed by their own privacy policies.

10. Public Content and Community Features

Comments, profile information, replies, reactions, or other content you post in public or community areas may be visible to other users and the general public.

Please avoid posting information that you do not want others to see, copy, or redistribute.

We cannot control how other users handle information you voluntarily make public.

Substack may independently moderate, store, display, or process community content under its own terms and policies.

11. Technical Support Information

When you contact us for app support, we may ask for information such as:

• App name and version;

• Device model;

• Operating-system version;

• A description of the issue;

• Screenshots or screen recordings;

• Crash logs;

• Diagnostic reports;

• Steps needed to reproduce the issue; and

• Limited account or transaction information.

We use this information to investigate and resolve your request, improve the relevant app, identify bugs, and maintain security.

Do not include unrelated personal information in screenshots, files, or diagnostic materials. You should redact sensitive content before sending it whenever possible.

12. Data Relating to CK My Apps Applications

Individual CK My Apps applications may collect different categories of information depending on their functionality.

An app-specific privacy policy may describe:

• Data collected by the app;

• Device permissions requested;

• Local device storage;

• Cloud synchronization;

• Analytics and diagnostics;

• Advertising technologies;

• In-app purchases;

• Third-party software-development kits;

• Data retention; and

• User controls.

This Site-level Privacy Policy should not be interpreted as a statement that every CK My Apps application collects every category of data listed here.

You should review the privacy policy displayed in the applicable app or app-store listing before using that app.

13. Data Retention

We retain personal information only for as long as reasonably necessary for the purposes described in this Privacy Policy, including to:

• Maintain your subscription;

• Provide requested services;

• Respond to support requests;

• Maintain business and transaction records;

• Comply with legal, tax, and accounting obligations;

• Resolve disputes;

• Prevent fraud and abuse; and

• Enforce our agreements.

Retention periods depend on the type of information and why it was collected.

For example:

• Subscription information may be retained while your subscription remains active;

• Communications may be retained while needed to respond and maintain relevant records;

• Transaction records may be retained for legally required tax and accounting periods;

• Security records may be retained while reasonably necessary to investigate or prevent abuse; and

• Backup copies may remain temporarily after deletion until they are overwritten through normal backup processes.

Substack and other service providers determine their own retention periods for information they process independently.

14. Data Security

We use reasonable administrative, technical, and organizational safeguards designed to protect personal information against unauthorized access, loss, misuse, alteration, or disclosure.

However, no online service, storage system, or electronic transmission is completely secure. We cannot guarantee absolute security.

You are responsible for:

• Protecting your account credentials;

• Using a strong and unique password;

• Securing your email account and devices;

• Avoiding the transmission of unnecessary sensitive information; and

• Notifying the relevant provider if you suspect unauthorized account access.

15. International Data Transfers

CK My Apps, Substack, and other service providers may process personal information in countries other than the country where you live.

Those countries may have privacy laws that differ from the laws in your jurisdiction.

Where required, appropriate safeguards may be used for international transfers, including:

• Standard contractual clauses;

• Data-processing agreements;

• Adequacy decisions;

• Approved certification frameworks; or

• Other lawful transfer mechanisms.

For information about Substack’s international transfer practices, please review Substack’s privacy documentation.

16. Your Privacy Rights

Depending on where you live, you may have the right to:

• Request access to personal information we hold about you;

• Request correction of inaccurate or incomplete information;

• Request deletion of personal information;

• Request restriction of processing;

• Object to certain processing;

• Withdraw consent;

• Receive a portable copy of certain information;

• Opt out of certain marketing communications;

• Opt out of certain sales, sharing, or targeted advertising;

• Request information about categories of information collected and disclosed;

• Appeal the denial of a privacy request; and

• File a complaint with a data-protection or privacy regulator.

These rights may be subject to legal exceptions and verification requirements.

To exercise a right relating to personal information directly controlled by CK My Apps, contact us at ceditor286@gmail.com.

To exercise a right relating to your Substack account or information independently controlled by Substack, you may need to use Substack’s account settings or contact Substack directly.

17. European, United Kingdom, and Swiss Privacy Rights

If you are located in the European Economic Area, United Kingdom, or Switzerland, you may have rights under applicable data-protection law, including the rights to:

• Access your personal data;

• Correct inaccurate data;

• Request deletion;

• Restrict processing;

• Object to processing based on legitimate interests;

• Object to direct marketing;

• Receive certain data in a portable format;

• Withdraw consent; and

• File a complaint with your local supervisory authority.

You may also have the right not to be subject to a decision based solely on automated processing that produces legal or similarly significant effects.

CK My Apps does not currently make decisions about users solely through automated processing that produce legal or similarly significant effects.

Our legal bases for processing are described in Section 4.

18. California Privacy Rights

California residents may have rights under the California Consumer Privacy Act, as amended by the California Privacy Rights Act.

Subject to legal limitations, these rights may include:

• The right to know what personal information is collected;

• The right to access specific pieces of personal information;

• The right to request deletion;

• The right to correct inaccurate personal information;

• The right to opt out of the sale or sharing of personal information;

• The right to limit certain uses of sensitive personal information; and

• The right not to receive discriminatory treatment for exercising privacy rights.

During the preceding 12 months, we may have collected the categories of personal information described in Section 2 and used or disclosed them for the purposes described in Sections 3 and 7.

We do not knowingly sell personal information for monetary compensation.

We do not knowingly share personal information for cross-context behavioral advertising.

To submit a California privacy request, contact ceditor286@gmail.com.

We may need to verify your identity before completing a request. An authorized agent may submit a request where permitted by law, but we may require proof of authorization and identity verification.

19. Other United States Privacy Rights

Residents of certain U.S. states may have additional rights regarding access, correction, deletion, portability, targeted advertising, profiling, or the sale of personal information.

Where applicable, you may exercise these rights by contacting ceditor286@gmail.com.

If we deny your request, you may have the right to appeal by replying to our decision and stating that you wish to appeal.

20. “Do Not Track” Signals

Some browsers transmit “Do Not Track” signals.

Because there is not currently a universally accepted standard for responding to all such signals, the Site may not respond to traditional Do Not Track settings.

Where required by applicable law, we may recognize legally valid browser-based opt-out preference signals, such as the Global Privacy Control, in connection with activities covered by those laws.

Substack and third-party services may maintain their own signal-recognition practices.

21. Children’s Privacy

CK My Apps and the Site are not directed to children under 13, and we do not knowingly collect personal information directly from children under 13.

If you are under 13, please do not subscribe, create an account, submit comments, or send personal information to us.

In jurisdictions where a higher minimum age applies to consent-based processing, users below that age should use the Site only with authorization from a parent or legal guardian.

If we learn that we have collected personal information from a child in violation of applicable law, we will take reasonable steps to delete it.

A parent or guardian who believes that a child has provided personal information may contact us at ceditor286@gmail.com.

22. Third-Party Websites and Services

Our content may contain links to third-party websites, app stores, social-media services, payment providers, or software platforms.

We do not control and are not responsible for the privacy, security, content, or practices of those third parties.

This Privacy Policy does not apply to information collected independently by a third party. You should review the third party’s privacy policy before providing information or using its services.

23. Data About Other People

If you provide personal information about another person, you represent that you have the authority or permission to provide it and that you have given any notices required by law.

Please do not submit another person’s sensitive or confidential information without their permission.

24. Changes to This Privacy Policy

We may update this Privacy Policy to reflect changes in:

• Our services;

• Our data practices;

• Substack or other service providers;

• Applicable laws;

• Regulatory guidance; or

• Security and operational requirements.

When we update the policy, we will revise the “Last Updated” date at the top.

If changes are material, we may provide additional notice through the Site, by email, or through another reasonable method.

Your continued use of the Site after an updated policy becomes effective means that the updated policy will apply to information processed after its effective date, subject to applicable law.

25. Contact Us

For questions, concerns, or privacy requests, contact:

Christos Kazantzoglou
Doing business as: CK My Apps
Email: ceditor286@gmail.com
Mailing address: Athens, Attiki
Website: ckmyapps.substack.com

Please include “Privacy Request” in the subject line and describe the nature of your request.

We may ask for additional information to verify your identity and locate the relevant records.

26. Complaints

We encourage you to contact us first so that we can try to resolve your concern.

If applicable data-protection law gives you the right to file a complaint, you may contact the privacy or data-protection authority in the country or region where you live, work, or believe a violation occurred.

Submitting a complaint does not affect any other rights or remedies available to you.