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Terms of Service

Last updated: March 15, 2026

Please read these Terms of Service ("Terms") carefully before using the BillStack mobile application ("App") operated by BillStack ("we," "our," or "us").

1. Acceptance of Terms

By downloading, installing, or using the App, you agree to be bound by these Terms. If you do not agree to these Terms, do not use the App.

2. Description of Service

BillStack provides a mobile application for creating invoices and estimates, tracking payments, managing clients, and generating PDF documents for business use. The App is provided on both a free and paid subscription basis.

3. User Accounts

To access certain features, you may need to create an account. You are responsible for:

  • Maintaining the confidentiality of your account credentials
  • All activities that occur under your account
  • Providing accurate and complete registration information
  • Notifying us immediately of any unauthorized use of your account

4. Subscriptions and Payments

Some features require a paid subscription ("Pro"). By subscribing:

  • You authorize us to charge the applicable fees to your chosen payment method
  • Subscriptions automatically renew unless cancelled before the renewal date
  • You may cancel at any time through your device's app store settings
  • Refunds are handled according to the policies of the Apple App Store or Google Play Store

5. Acceptable Use

You agree not to:

  • Use the App for any unlawful purpose or to create fraudulent invoices
  • Attempt to gain unauthorized access to the App or its systems
  • Reverse engineer, decompile, or disassemble the App
  • Use the App to transmit malicious code or harmful content
  • Interfere with or disrupt the integrity or performance of the App
  • Use the App in any way that could damage or overburden our infrastructure

6. Your Data

You retain ownership of all data you enter into the App (invoices, estimates, client information, etc.). You grant us a limited license to process this data solely to provide and improve the service. See our Privacy Policy for details on how we handle your data.

7. Intellectual Property

The App, including its design, code, graphics, logos, and content, is owned by BillStack and protected by intellectual property laws. You may not copy, modify, distribute, or create derivative works of the App without our prior written consent.

8. Disclaimer of Warranties

The App is provided "as is" and "as available" without warranties of any kind, whether express or implied. We do not warrant that the App will be uninterrupted, error-free, or free of harmful components. BillStack is not a financial, accounting, or tax advisory service. You are solely responsible for the accuracy of your invoices and compliance with applicable tax laws.

9. Limitation of Liability

To the fullest extent permitted by law, BillStack shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including loss of profits, data, or business opportunities, arising from your use of the App. Our total liability shall not exceed the amount you paid us in the twelve (12) months preceding the claim.

10. Indemnification

You agree to indemnify and hold harmless BillStack, its officers, directors, employees, and agents from any claims, damages, losses, or expenses (including reasonable attorneys' fees) arising from your use of the App or violation of these Terms.

11. Termination

We may suspend or terminate your access to the App at any time, with or without cause. Upon termination, your right to use the App ceases immediately. Provisions that by their nature should survive termination shall survive.

12. Changes to Terms

We reserve the right to modify these Terms at any time. We will notify you of material changes through the App or by email. Continued use of the App after changes constitutes acceptance of the modified Terms.

13. Governing Law

These Terms shall be governed by and construed in accordance with the laws of the State of California, United States, without regard to its conflict of law provisions.

14. Contact Us

If you have questions about these Terms, please contact us at:

support@billstack.app

© 2026 BillStack. All rights reserved.