Privacy Policy

Your privacy matters to us

Last Updated: February 3, 2026

This Privacy Policy describes how MDJS Lottery Calendar developed by Nemesis Reward ("we," "our," or "us") collects, uses, and shares information when you use our mobile application MDJS Lottery Calendar ("the App"). By using the App, you agree to the collection and use of information in accordance with this policy.

Information We Collect

Unique Identifiers

We collect the following identifiers to provide and improve our services:

  • Google Advertising ID (GAID): We collect your Google Advertising ID for analytics and attribution purposes. This helps us understand how users discover and interact with our App. You can reset or opt out of personalized advertising by visiting your device's settings. Learn more about Google's advertising policies.
  • User ID: We generate a unique identifier (UUID) that is stored locally on your device. This identifier helps us understand app usage patterns and improve the user experience. This ID does not personally identify you.

Push Notifications

This App may use Firebase Cloud Messaging (FCM) to send you push notifications about draw reminders, ticket status updates, and important information related to your lottery tracking.

To deliver these notifications, we collect a device token (FCM token) that uniquely identifies your device for notification purposes. This token is used solely for delivering notifications and is not used to personally identify you.

You can disable push notifications at any time through your device settings. Disabling notifications will not affect other functionality of the App.

For more information about how Firebase handles data, please review the Firebase Privacy Policy.

Device Information

We collect basic device information to optimize your experience and troubleshoot issues:

  • Device model and manufacturer
  • Operating system version
  • Language and locale settings
  • Screen resolution and density

This information helps us ensure the App works correctly on your device and allows us to identify and fix compatibility issues.

Attribution & Analytics (AppsFlyer)

We use AppsFlyer to understand how users discover and interact with our App. AppsFlyer may collect:

  • Installation source and campaign data (e.g., which ad or link led you to the App)
  • Device identifiers for attribution purposes
  • App usage events and interaction data

This information helps us understand our marketing effectiveness and improve user acquisition. AppsFlyer processes this data as a service provider on our behalf.

For more information, please review the AppsFlyer Privacy Policy.

Background Services

This App uses background services to provide timely notifications about lottery draws:

  • Draw Reminders: The App schedules background tasks to check for upcoming draws and send you reminder notifications at your preferred times.
  • Boot Receiver: When your device restarts, the App may restore your scheduled reminders automatically.

These background services only process your locally stored preferences and do not transmit data to external servers.

Local Data Storage

The App stores the following data locally on your device:

  • Your lottery draw schedules and preferences
  • Ticket numbers and associated draw information
  • Reminder settings and notification preferences
  • App settings and customization options

This data is stored locally on your device and is not transmitted to our servers unless explicitly stated. You can delete all local data by uninstalling the App or clearing the App's data through your device settings.

How We Use Your Information

We use the collected information for the following purposes:

  • To provide and maintain the App's functionality
  • To send push notifications about draw reminders and updates
  • To analyze usage patterns and improve the App
  • To troubleshoot technical issues and optimize performance
  • To understand how users discover and interact with the App

Data Sharing and Third Parties

We do not sell your personal information. We may share information in the following circumstances:

  • Service Providers: We share data with third-party service providers who assist us in operating the App, including:
    • AppsFlyer - For attribution and analytics (Privacy Policy)
    • Firebase (Google) - For push notifications and crash reporting (Privacy Policy)
  • Legal Requirements: We may disclose information if required by law or in response to valid legal requests.
  • Business Transfers: In the event of a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction.

Data Security

We implement appropriate technical and organizational measures to protect your information against unauthorized access, alteration, disclosure, or destruction. However, no method of electronic storage or transmission is 100% secure, and we cannot guarantee absolute security.

Data Retention

We retain collected information for as long as necessary to provide you with the App's services and as required by applicable laws. Local data stored on your device remains until you uninstall the App or clear the App's data.

Your Rights

Depending on your location, you may have certain rights regarding your personal information, including:

  • The right to access your personal information
  • The right to request correction of inaccurate data
  • The right to request deletion of your data
  • The right to opt out of certain data collection

To exercise these rights, please contact us using the information provided below.

Children's Privacy

The App is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

Third-Party Links

The App may contain links to third-party websites or services that are not operated by us. We are not responsible for the privacy practices of these external sites. We encourage you to review the privacy policies of any third-party sites you visit.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date. You are advised to review this Privacy Policy periodically for any changes.

Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us at:

Email: [email protected]