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Privacy Policy

Last Updated: September 2026 • Applies to all applications by gUmsIz

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1. Introduction & Overview

This Privacy Policy describes how gUmsIz ("we", "us", "our") collects, uses, and discloses information when you download, install, or interact with our mobile applications available on the Apple App Store and Google Play Store. These include, but are not limited to, Flea Markets (Flohmärkte), Verben, Word Puzzle, Batak, and DerDieDas Universe (collectively, the "Services").

We believe in data privacy by design and strive to minimize the amount of data processed to what is strictly necessary to provide a smooth, reliable, and enjoyable experience.

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2. Information We Collect and Process

A. Information You Provide Directly

We do not require user account registration, passwords, or personal profiles to access or play our apps. When you contact our support team directly via email (info@gumsiz.xyz), we may retain your email address and message contents solely to address your inquiry or troubleshoot reported issues.

B. Automatically Collected Technical Information

When you use our apps, certain non-personally identifiable diagnostic and telemetry data may be collected automatically by standard platform SDKs to ensure app stability and performance:

  • Device hardware specifications (model, manufacturer, operating system version).
  • App performance logs, crash stack traces, and session timestamps.
  • Anonymous installation identifiers and general locale / language settings.

C. In-App Purchases, Subscriptions & Entitlements

lockZero Payment Data Collection

All in-app purchases and subscription transactions are processed entirely and securely by Apple (via the App Store and StoreKit) or Google (via Google Play Billing). We never collect, see, or store your credit card numbers, bank account numbers, or billing addresses.

To validate your purchase status, unlock premium features, and manage active subscriptions, we utilize Adapty (Adapty Inc.). Adapty processes an anonymous subscriber ID and cryptographic purchase receipt tokens provided by Apple or Google to confirm active entitlements across app reinstalls and updates.

D. Location Data (Flea Markets App Only)

In the Flea Markets (Flohmärkte) app, you may choose to grant the app permission to access your device location (coarse or fine) solely to display flea markets nearest to you on an interactive map. Location coordinates are processed on your device in real-time and are never stored on external servers, tracked in the background, or shared with advertising partners.

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3. Third-Party SDKs and Service Providers

Our apps may integrate trusted third-party SDKs for core operations, crash diagnostics, purchase management, and non-intrusive advertising. Below are the providers we work with, along with links to their privacy practices:

  • Apple App Store & StoreKit: Used for iOS app distribution and in-app purchase processing. Apple Privacy Policy
  • Google Play Services & Google Play Billing: Used for Android app distribution, APIs, and in-app purchase processing. Google Privacy Policy
  • Adapty (Adapty Inc.): Used for subscription validation, analytics, and paywall management. Adapty Privacy Policy
  • Firebase Crashlytics & Analytics (Google LLC): Used to monitor app crashes, errors, and aggregated usage metrics. Firebase Privacy Notice
  • Google AdMob: Used in select free versions to serve banner, interstitial, or rewarded video advertisements. Google Advertising Technologies
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4. Advertising & Tracking Transparency

For applications displaying third-party ads, AdMob may use device advertising identifiers (such as Apple IDFA on iOS or Google Advertising ID / GAID on Android) to provide relevant advertisements or frequency capping.

On iOS 14.5 and later, we respect Apple’s App Tracking Transparency (ATT) framework. We only request tracking authorization if applicable, and if declined, ads are served in non-personalized mode. On Android, you can reset or delete your advertising identifier at any time via your device settings (Settings > Google > Ads).

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5. Data Retention & Data Deletion Requests

We do not host or operate persistent databases of personal customer records. Anonymous telemetry, crash diagnostics, and purchase entitlement records are retained only for as long as necessary to debug issues and uphold legal obligations, after which they are purged or aggregated.

assignment_turned_in How to Request Data Deletion

In accordance with Google Play User Data policies and international privacy regulations, you have the right to request deletion of any data associated with your interaction with our apps. Simply send an email to info@gumsiz.xyz with the subject "Data Deletion Request" and specify the app name and your device identifier (if applicable). We will process and confirm your request within 30 days at no charge.

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6. Children’s Privacy (COPPA & GDPR-K Compliance)

Protecting the privacy of young children is especially important to us. Our applications are designed for a general audience and are not directed to children under the age of 13 (or under 16 for residents of the European Economic Area or United Kingdom).

We do not knowingly collect or solicit personally identifiable information from children under these age limits. If we discover that personal information from a child has been collected inadvertently, we promptly delete such data from our records. If you are a parent or guardian and believe your child has provided us with personal data, please contact us immediately at info@gumsiz.xyz.

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7. Your Rights Under GDPR (EEA/UK) and CCPA/CPRA

Depending on your geographic location, you possess distinct legal rights regarding your personal information under the General Data Protection Regulation (GDPR) or the California Consumer Privacy Act (CCPA):

  • Right of Access: Request details about any data processed about you.
  • Right to Erasure ("Right to be Forgotten"): Request deletion of your data.
  • Right to Rectification: Request correction of inaccurate information.
  • Right to Restrict or Object to Processing: Limit how your data is used.
  • Right to Data Portability: Obtain a portable copy of your data.
  • Right to Non-Discrimination: We will never deny services or charge different prices for exercising your privacy rights.

To exercise any of these rights, please email info@gumsiz.xyz. We will respond promptly within statutory timelines.

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8. Security of Your Information

We take reasonable administrative, technical, and physical measures to protect all data against unauthorized access, loss, misuse, or alteration. All network communications in our applications and on this website use industry-standard HTTPS / TLS 1.3 encryption.

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9. Changes to This Privacy Policy

We may update our Privacy Policy periodically to reflect changes in our apps, applicable laws, or store requirements. Any modifications will be posted on this page with an updated "Last Updated" timestamp. We encourage you to review this page periodically.

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10. Contact Us

If you have questions, comments, or concerns regarding this Privacy Policy or our data practices, please reach out to:

gUmsIz Apps

Email: info@gumsiz.xyz

Website: https://gumsiz.xyz

gUmsIz apps

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