Privacy Policy

1. Introduction

Welcome to MartCalc. This privacy policy explains how we handle your information when you use our mobile application. We are committed to protecting your privacy and ensuring transparency about our data practices.

2. Information We Collect

MartCalc is designed with privacy in mind. The information collected is minimal and stored locally on your device:

• Shopping List Data: Items, prices, and quantities you add to your shopping cart
• Budget Settings: Your personal budget preferences
• App Settings: Language preferences and other app configurations

All this data is stored locally on your device using AsyncStorage and is never transmitted to our servers or any third parties.

3. How We Use Your Information

The information stored locally on your device is used solely to:

• Display your shopping items and calculate totals
• Track your budget and spending
• Remember your app preferences
• Provide a personalized user experience

4. Data Storage and Security

Your data is stored exclusively on your device. We do not collect, transmit, or store any of your personal information on external servers. When you uninstall the app, all local data is removed from your device.

5. Third-Party Services

MartCalc may use third-party services for the following purposes:

• Google Mobile Ads: To display advertisements within the app. Google may collect certain device information and usage data according to their privacy policy.

We recommend reviewing the privacy policies of these third-party services:

• Google Privacy Policy
• Google AdMob Policy

6. Children's Privacy

MartCalc does not knowingly collect any personal information from children under the age of 13. The app is designed for general audiences and does not require any personal information to function.

7. Data Sharing

We do not sell, trade, or transfer your information to third parties. Since all data is stored locally on your device, there is no data sharing with external parties except as described in the Third-Party Services section.

8. Your Rights

You have complete control over your data:

• Access: You can view all your data within the app
• Delete: You can delete individual items or clear all data through the app settings
• Export: Since data is stored locally, you maintain full ownership and control

9. Changes to This Privacy 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.

10. International Users

MartCalc is available globally. Since all data is stored locally on your device, there are no international data transfers.