Privacy Policy  ·  Last updated April 2026

100% Local

Overview

BillStack is a personal bill tracking app. All your data is stored locally on your device. We do not collect, transmit, or have access to any of your personal information.

Data Stored on Your Device

The following data is stored locally in a database on your iPhone only:

This data never leaves your device and is never accessible to us.

Biometric Authentication

If you enable Face ID or Touch ID, your biometric data is handled entirely by your device's Secure Enclave (iOS). BillStack never accesses, processes, or stores your biometric information.

Notifications

BillStack uses local notifications to remind you of upcoming bill due dates. These notifications are scheduled entirely on your device and do not involve any external servers or services.

Third-Party Services

BillStack does not use any analytics, advertising, crash reporting, or tracking services. No data is shared with or sold to any third party.

Data Security

Your bill data is stored in an encrypted SQLite database, protected by iOS's built-in data protection. Enabling a device passcode (which activates iOS data protection by default) ensures your data is encrypted at rest.

Children's Privacy

BillStack is not directed at children under 13 and does not knowingly collect information from children.

Changes to This Policy

If we make changes to this policy, we will update the date at the top of this page. Continued use of the app after changes constitutes acceptance of the updated policy.

Contact

Questions about this privacy policy? Reach us at nisharg.ahmed@gmail.com