Last Updated: December 10, 2025
INTRODUCTION:
CostFlow ("App", "we", "us", or "our") operates the CostFlow application.
This page informs you of our policies regarding the collection, use, and disclosure of personal data when you use our App.
IMPORTANT: CostFlow is designed with privacy-first principles. Your financial data stays on your device.
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DATA COLLECTION
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LOCAL DATA ONLY:
✓ All expense data is stored locally on your device
✓ No data is transmitted to our servers
✓ No cloud synchronization or backup
✓ No analytics or tracking
PERSONAL INFORMATION WE DON'T COLLECT:
✗ We do NOT collect your name
✗ We do NOT collect your email address
✗ We do NOT collect your location
✗ We do NOT collect device identifiers
✗ We do NOT collect usage statistics
✗ We do NOT use analytics services
✗ We do NOT share data with third parties
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PERMISSIONS
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Storage Access:
- CostFlow accesses your device's local storage to save and retrieve expense data
- This permission is required for the app to function
- All data remains on your device
Network Access:
- CostFlow does NOT require internet connection
- The app works completely offline
- No data is transmitted over the network
Other Permissions NOT Requested:
✗ Camera
✗ Location/GPS
✗ Contacts
✗ Calendar
✗ Microphone
✗ Bluetooth
✗ Contacts
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DATA SECURITY
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Device Storage:
- Expense data is stored in a private, encrypted local database (Hive)
- Data is protected by your device's built-in security mechanisms
- Only the CostFlow app can access this data
Device Protection:
- Protect your device with a PIN, password, or biometric security
- This adds an extra layer of security to your financial data
Data Backup:
- If you backup your device to cloud services (iCloud, Google Drive), your expense data may be included in the backup
- This is controlled by your device's backup settings, not by CostFlow
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DATA DELETION
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Delete Individual Expenses:
- Swipe to delete any expense from within the app
- Deleted expenses are permanently removed
Clear All Data:
- Delete the app from your device
- All app data is automatically deleted
- Or manually clear app data through device settings
Uninstall:
- Uninstalling the app removes all associated data from your device
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USER RIGHTS
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Access Your Data:
- All your data is accessible within the CostFlow app
- You have full access to view, edit, and delete your expenses
Data Portability:
- Your data is stored locally and not in any proprietary format we control
- You maintain complete ownership of your financial data
Right to Delete:
- You can delete individual expenses or clear all data anytime
- Deletion is permanent and irreversible
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CHILDREN'S PRIVACY
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CostFlow is suitable for users of all ages. We do not knowingly collect any personal information from children under 13. Parents or guardians can monitor their children's use of the app and manage their device settings accordingly.
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THIRD-PARTY SERVICES
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CostFlow uses the following open-source libraries:
- Flutter: UI framework (by Google)
- Hive: Local database (open-source)
- fl_chart: Chart visualization (open-source)
- intl: Internationalization (open-source)
None of these libraries collect personal data. They operate entirely on your device.
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UPDATES TO THIS POLICY
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We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date of this Privacy Policy.
Your continued use of the Application after we make changes is deemed to be acceptance of those changes.
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CONTACT US
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If you have any questions about this Privacy Policy, please contact us through the app store listing or email.
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SUMMARY
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✓ Your data stays on your device
✓ We don't collect personal information
✓ We don't track your usage
✓ We don't share your data
✓ You have full control over your data
✓ Complete privacy and security
CostFlow respects your privacy and keeps your financial information completely private and secure.
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