BillStack ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how our mobile application ("App") handles your information.
BillStack is designed with a local-first architecture. All of your data — including invoices, estimates, client information, and payment records — is stored exclusively on your device. We do not operate any cloud servers, and your data is never uploaded to or stored on any external server controlled by us.
The App allows you to enter the following types of information, all of which remains on your device:
Your data only leaves your device when you explicitly take action:
The App may use the following third-party services:
We do not use any analytics, tracking, or advertising SDKs.
BillStack does not require you to create an account, provide an email address, or sign in. The App works entirely offline and without registration.
Since your data is stored locally on your device, its security is protected by your device's own security measures (passcode, biometrics, encryption). We recommend keeping your device software up to date and using a strong passcode.
If you uninstall the App, all locally stored data will be permanently deleted.
The App is not intended for use by children under the age of 13. Since we do not collect any personal information, we do not knowingly collect data from children.
Since all data is stored locally on your device, you have full control over it at all times. You can:
We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy in the App and updating the "Last updated" date.
If you have questions about this Privacy Policy, please contact us at: