Privacy Policy
Effective date: July 31, 2026
This Privacy Policy describes how the Calculator app ("the App", "we", "our") handles information when you use it. The App is developed and published by an individual developer
("the Developer").
We respect your privacy. The App is designed to work without requiring you to create an account or provide any personal information.
1. Information We Collect
Information you provide
The App does not ask for, collect, or store any personally identifiable information such as your name, email address, phone number, or payment information.
Calculation history
Calculations you perform in the App may be saved to a history list. This history is stored only on your device in a local database. It is never transmitted to the Developer or to
any external server, and it is deleted when you clear the history or uninstall the App.
Information collected automatically by third-party services
The App uses the following third-party services, which may automatically collect certain information:
- Google AdMob (Google Mobile Ads SDK) — used to display advertisements (banner, interstitial, app open, and native ads). AdMob may collect and use your device's advertising ID
(AAID), IP address, device information (model, OS version, language), and ad interaction data to serve and measure ads, including personalized ads where permitted.
- Google Firebase Analytics — used to understand aggregate app usage (e.g., app opens, screen views, crashes) so the Developer can improve the App. Firebase may collect device
information, app usage events, and an app-instance identifier.
- Google Play Services — required for the services above to function.
These services are operated by Google LLC. Their collection and use of data are governed by Google's own policies:
- Google Privacy Policy: https://policies.google.com/privacy
- How Google uses data from apps that use its services: https://policies.google.com/technologies/partner-sites
- AdMob data practices: https://support.google.com/admob/answer/6128543
2. Advertising ID
The App declares the com.google.android.gms.permission.AD_ID permission, which allows the Google Mobile Ads SDK to use your device's advertising ID for advertising purposes. You can
reset your advertising ID or opt out of ad personalization at any time in your device settings:
Settings → Google → Ads (or Settings → Privacy → Ads, depending on your device).
3. How We Use Information
Information collected by the third-party services above is used solely to:
- display and measure advertisements, which keep the App free;
- understand aggregate usage patterns and improve the App's stability and features.
The Developer does not sell your data and does not receive any personally identifiable information about you.
4. Data Sharing
The Developer does not share any data with third parties, other than the automatic collection by Google services described in Section 1. The Developer has no access to, and no
ability to identify, individual users.
5. Data Retention and Security
- Calculation history remains on your device until you delete it or uninstall the App.
- Data collected by Google services is retained according to Google's retention policies.
- The App communicates with Google services over encrypted connections (HTTPS).
6. Children's Privacy
The App is a general-audience application and is not directed at children under 13 (or the equivalent minimum age in your jurisdiction). The Developer does not knowingly collect
personal information from children. If you believe a child has provided personal information through the App, please contact us and we will take appropriate steps.
7. Your Rights
Depending on your region (e.g., GDPR in the EEA/UK, CCPA in California, PIPA in South Korea), you may have rights regarding your personal data, such as access, deletion, or
objection to processing. Because the Developer does not collect or store personal data, most such requests relate to data held by Google; please refer to the Google resources linked
above. You may also contact the Developer with any question or request.
8. Changes to This Privacy Policy
This Privacy Policy may be updated from time to time. Changes will be posted on this page with an updated effective date. Continued use of the App after changes take effect
constitutes acceptance of the revised policy.
9. Contact
If you have any questions about this Privacy Policy or the App, please contact:
Email: hsh13828@gmail.com