Muster

Terms of Service

Last updated: 3/31/2026

These Terms of Service ("Terms") govern your use of Muster ("we," "our," or "us") and its practice management application. By creating an account or using the service, you agree to these Terms.

1. Acceptance

By using Muster, you agree to these Terms and our Privacy Policy. If you do not agree, do not use the service.

2. Account

You must provide accurate information when registering. You are responsible for keeping your password confidential and for all activity under your account. You must notify us promptly of any unauthorized use.

3. Acceptable Use

You agree not to:

  • Use the service for any illegal purpose or in violation of any law
  • Upload, share, or store content that infringes others' rights or is harmful
  • Attempt to gain unauthorized access to the service, other accounts, or our systems
  • Interfere with the operation or security of the service
  • Use automated means to scrape or collect data without our permission

You are solely responsible for the data you enter, including client/patient information. If you handle protected health information (PHI) or other regulated data, you must comply with all applicable laws (e.g., HIPAA in the United States). Muster is a general-purpose practice management tool; we do not guarantee HIPAA compliance or provide a Business Associate Agreement unless separately agreed in writing.

4. Service Description

Muster provides practice management tools, including client/patient management, appointments, notes, receipts, tasks, and optional integrations (e.g., Google Calendar). We may update, modify, or discontinue features with reasonable notice where feasible.

5. Subscription and Payment

Paid plans are billed according to the plan you select (monthly or yearly). Payment is processed by third-party providers (PayPal, Mercado Pago). You are responsible for applicable taxes. We may change pricing with notice. Refunds are subject to our refund policy and applicable law.

6. Intellectual Property

Muster and its content, design, and branding are owned by us. You do not acquire any ownership rights by using the service. You may not copy, modify, or create derivative works of the service without our written permission.

7. Your Data

You own your data. We use it only to run the service for you—for example, to show your calendar, sync your notes, and store your receipts. We do not sell your data, use it for advertising, or use it for any purpose other than providing and improving Muster for you. You are responsible for the accuracy and lawfulness of what you enter.

You are the sole responsible party for your data. Your data may be stored or synced in more than one place (for example on our servers, in your browser or on your device, and—if you enable it—in Google Calendar or other third-party services). You are responsible for being aware of where your data is stored and for backing it up and securing it as you see fit.

See our Privacy Policy for details.

8. Disclaimer

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED. WE DISCLAIM ALL WARRANTIES, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR SECURE. MUSTER IS NOT A SUBSTITUTE FOR PROFESSIONAL ADVICE; YOU ARE SOLELY RESPONSIBLE FOR YOUR CLINICAL, BUSINESS, AND LEGAL COMPLIANCE.

9. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE AND OUR OFFICERS, DIRECTORS, EMPLOYEES, AND AFFILIATES SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOSS OF PROFITS, DATA, GOODWILL, OR BUSINESS OPPORTUNITY, WHETHER BASED ON CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY, OR OTHERWISE. WE SHALL NOT BE LIABLE FOR ANY FAILURE OR DELAY DUE TO THIRD-PARTY SERVICES, NETWORK FAILURES, OR EVENTS BEYOND OUR REASONABLE CONTROL. IN NO EVENT SHALL OUR TOTAL LIABILITY EXCEED THE AMOUNT YOU PAID US IN THE 12 MONTHS BEFORE THE CLAIM (OR $100 IF YOU HAVE NOT PAID US).

10. Indemnification

You agree to indemnify, defend, and hold harmless Muster and its officers, directors, employees, and agents from and against any claims, damages, losses, liabilities, and expenses (including reasonable legal fees) arising from: (a) your use of the service; (b) your violation of these Terms or any law; (c) your data or content; or (d) any dispute between you and a third party relating to the service.

11. Termination

You may close your account at any time. We may suspend or terminate your account if you breach these Terms or for other reasons with notice where appropriate. Upon termination, your right to use the service ends.

12. Changes to Terms

We may update these Terms from time to time. We will notify you of material changes by posting the updated Terms on this page and updating the "Last updated" date. Continued use of the service after changes constitutes acceptance.

13. Governing Law and Disputes

These Terms are governed by the laws of the jurisdiction in which we operate, without regard to conflict of law principles. Any dispute arising from these Terms or the service shall be resolved exclusively in the courts of that jurisdiction. You waive any objection to venue and personal jurisdiction.

14. Severability

If any provision of these Terms is held invalid or unenforceable, the remaining provisions will remain in full force and effect.

15. Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and Muster regarding the service and supersede any prior agreements.

16. Contact

For questions about these Terms, contact us at musterwithu@gmail.com.