12C Financial Calculator

Welcome to the 12C Financial Calculator app. We respect your privacy and are committed to protecting any information related to your use of our application.

This Privacy Policy explains what information we collect, how we use it, and your rights regarding that information. By using this app, you agree to the practices described in this policy.

This app is designed to work fully offline. We collect minimal data to provide a better experience:

• Install Date — stored locally on your device to determine when to show ads and review prompts
• Ad Preference Data — whether you are a new user (ad-free grace period tracking)
• Review Request Count — stored locally to limit how often we ask for a rating

After a 7-day grace period from first install, this app displays ads powered by Google AdMob. New users will not see any ads during this period.

Google AdMob may collect certain data for ad personalization, including:

• Advertising ID (GAID)
• Device type and OS version
• General location (country/region level)
• App usage and interaction data

For more details, please review Google's Privacy Policy: policies.google.com/privacy

The 12C Financial Calculator stores all your calculator data (memory, history, settings) locally on your device using browser localStorage inside the WebView. This data:

• Never leaves your device
• Is not accessible to us or any third party
• Can be cleared anytime via Settings → Reset Calculator Memory

This app requests the following permissions:

• INTERNET — Required for loading ads via Google AdMob
• ACCESS_NETWORK_STATE — Required to check network availability for ads

We do not request access to your camera, microphone, contacts, location, or any sensitive personal data.

This app is a financial calculator tool intended for general audiences and professional use. It is not directed at children under the age of 13.

We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us immediately.

This app integrates the following third-party services which have their own privacy policies:

• Google AdMob — Advertising platform by Google
• Google Play In-App Review — Native review prompts

We are not responsible for the privacy practices of these third-party services. Please review their respective privacy policies.

We may update this Privacy Policy from time to time. Any changes will be reflected with an updated "Last Updated" date at the top of this page.

Continued use of the app after changes constitutes your acceptance of the updated policy. We encourage you to review this policy periodically.