# Privacy Policy for Expense Tracker **Effective Date:** January 16, 2026 **Last Updated:** January 16, 2026 **Developer:** SuperDev **Contact Email:** superdev706@gmail.com **Website:** https://casastek.com --- ## Introduction SuperDev ("we", "our", or "us") operates the Expense Tracker mobile application (the "App"). This Privacy Policy explains how we handle your information when you use our App. **Your privacy is important to us.** Expense Tracker is designed with privacy as a core principle. All your financial data stays on your device and is never transmitted to our servers or any third parties. --- ## Information We Collect ### User-Provided Information When you use Expense Tracker, you may enter the following information: - **Expense details:** Title, amount, date, and category of expenses - **App preferences:** Theme settings (light/dark mode) and language preference (English/Arabic) ### Automatically Collected Information We **do not** collect any information automatically. The App does not: - Track your location - Access your contacts - Collect device identifiers - Use cookies or tracking technologies - Connect to the internet for data transmission --- ## How We Use Your Information All data you enter into Expense Tracker is: - **Stored locally** on your device only - **Encrypted** using AES-256 encryption for security - **Never transmitted** to external servers or third parties - Used solely to provide the expense tracking functionality you request Your preferences (theme and language) are stored locally on your device using secure storage mechanisms. --- ## Data Storage and Security ### Local Storage - All expense data is stored in an encrypted database on your device - The encryption key is generated using cryptographically secure random number generation - The key is stored securely in your device's local storage - No cloud backup or synchronization occurs ### Data Security We implement industry-standard security measures: - AES-256 encryption for all expense data - Secure key generation using `Random.secure()` - No network transmission of personal data - No third-party access to your information --- ## Data Sharing and Third Parties **We do not share, sell, rent, or trade your information with third parties for any purpose.** The App does not: - Use analytics services - Include advertising networks - Integrate social media platforms - Connect to cloud services - Transmit data to external servers --- ## Your Rights and Choices You have complete control over your data: ### Data Export - Export your expense data to CSV format at any time via the App's drawer menu - Choose where to save the exported file on your device ### Data Deletion - Delete individual expenses by swiping or using the edit screen - Uninstalling the App will permanently remove all data from your device ### App Preferences - Change theme settings (light/dark/system) at any time - Switch between English and Arabic languages --- ## Children's Privacy Expense Tracker does not knowingly collect information from children under the age of 13. The App is not directed at children. If you are a parent or guardian and believe your child has provided information through the App, please contact us, and we will help you delete such information. --- ## Data Retention - **Expense data:** Retained on your device until you delete it or uninstall the App - **App preferences:** Retained on your device until you reset them or uninstall the App - **No server-side data:** We do not store any of your data on our servers --- ## 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 in the App - Updating the "Last Updated" date at the top of this policy - Providing notice through the App or via email if changes are material You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when posted. --- ## International Users Expense Tracker can be used worldwide. Since all data is stored locally on your device and never transmitted, there are no international data transfer concerns. Your data never leaves your device. --- ## California Privacy Rights If you are a California resident, you have the right to request information about the personal data we collect. However, since Expense Tracker does not collect, transmit, or store data on our servers, there is no data for us to provide beyond what is stored locally on your device under your control. --- ## GDPR Compliance (European Users) For users in the European Economic Area (EEA), we comply with the General Data Protection Regulation (GDPR): - **Data Controller:** You are the controller of your data, as it never leaves your device - **Legal Basis:** Your consent through using the App - **Data Portability:** Export your data to CSV format at any time - **Right to Erasure:** Delete data through the App or by uninstalling - **No Automated Decision-Making:** We do not use your data for automated decisions --- ## Contact Us If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us: **Email:** superdev706@gmail.com **Website:** https://casastek.com **Developer:** SuperDev We will respond to your inquiry within 30 days. --- ## Technical Information For transparency, here are the technical details of our data handling: ### Permissions The App may request the following permissions: - **Storage:** To export expense data to CSV files on your device ### Third-Party Libraries The App uses the following open-source libraries: - **Flutter:** UI framework - **Hive:** Local database with encryption - **BLoC:** State management - No analytics, advertising, or tracking libraries ### Encryption Details - Algorithm: AES-256 - Key Generation: Cryptographically secure random generation - Key Storage: Local device storage (SharedPreferences on Windows, similar mechanisms on other platforms) --- ## Acceptance of This Policy By using Expense Tracker, you acknowledge that you have read this Privacy Policy and agree to its terms. If you do not agree with this policy, please do not use the App. --- **© 2026 SuperDev. All rights reserved.**