End User License Agreement

Sentinel First Response | RJK Enterprises LLC
Effective Date: July 6, 2026

PLEASE READ THIS END USER LICENSE AGREEMENT (“AGREEMENT” OR “EULA”) CAREFULLY BEFORE DOWNLOADING OR USING SENTINEL FIRST RESPONSE. BY DOWNLOADING, INSTALLING, OR USING THE APP, YOU AGREE TO BE BOUND BY THE TERMS OF THIS AGREEMENT.

1. Parties

This Agreement is between you (“User”) and RJK Enterprises LLC, a Massachusetts limited liability company (“Developer,” “we,” or “us”), the developer of Sentinel First Response (“App”).

2. License grant

Subject to your compliance with this Agreement, Developer grants you a limited, non-exclusive, non-transferable, revocable license to download and use the App on any Apple-branded device you own or control, solely for your personal, non-commercial use.

3. Restrictions

You agree that you will not:

4. Subscription terms

Sentinel First Response is offered on a subscription basis. By subscribing, you authorize recurring charges to your Apple ID account at the rate and frequency disclosed at the time of purchase.

Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current subscription period. You may manage or cancel your subscription at any time through your Apple ID account settings. No refunds are provided for partial subscription periods, except as required by applicable law.

Pricing is subject to change with reasonable advance notice.

5. For tracking purposes only, not official payroll

IMPORTANT: Sentinel First Response is designed as a personal shift and payroll tracking tool for informational purposes only. The App is not an official payroll system and is not affiliated with, endorsed by, or connected to any government agency, fire department, police department, EMS agency, union, or employer.

All calculations produced by the App, including but not limited to overtime calculations, time bank balances, shift differentials, and total compensation estimates, are based solely on the information you enter and are provided for personal reference only.

DO NOT rely on the App as the sole or authoritative source for any official payroll dispute, grievance proceeding, legal claim, or employment matter. Always verify compensation information with your official payroll department or employer.

Developer is not responsible for any financial decisions, employment actions, or other consequences arising from your reliance on information displayed in the App.

Not affiliated with, endorsed by, or sponsored by any department listed. Department names are used solely to identify publicly known shift schedules.

6. HealthKit

The App requests read-only access to certain Apple HealthKit data, including sleep analysis, active energy (move), exercise minutes, heart rate variability, resting heart rate, respiratory rate, and wrist temperature, together with your related activity goals, for display within the App’s wellness features. By granting HealthKit permissions, you authorize the App to read this data from your device. You may revoke this permission at any time in iOS Settings. Developer does not write to HealthKit and does not transmit or store your HealthKit data.

7. Intellectual property

The App, including all content, features, design, code, and functionality, is owned by RJK Enterprises LLC and is protected by applicable intellectual property laws. This Agreement does not transfer any ownership interest to you. All rights not expressly granted are reserved.

8. Disclaimer of warranties

THE APP IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, OR NON-INFRINGEMENT. DEVELOPER DOES NOT WARRANT THAT THE APP WILL BE ERROR-FREE, UNINTERRUPTED, OR FREE OF BUGS OR DEFECTS.

9. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, DEVELOPER SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING FROM OR RELATED TO YOUR USE OF THE APP, INCLUDING BUT NOT LIMITED TO LOST INCOME, LOST DATA, OR PAYROLL DISCREPANCIES, EVEN IF DEVELOPER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

IN NO EVENT SHALL DEVELOPER’S TOTAL LIABILITY TO YOU EXCEED THE AMOUNT YOU PAID FOR THE APP IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM.

10. Data, local storage, and backups

Your shift records, payroll data, and personal entries are stored on your device. If you enable backups, a copy is stored in your own private Apple iCloud account; Developer has no access to your data in either location. You are solely responsible for maintaining backups of your data and for your iCloud account. Developer is not liable for any data loss resulting from device failure, App deletion, iOS or iCloud changes, or any other cause.

11. Updates and modifications

Developer may update or modify the App at any time. Updates may change or remove features. Continued use of the App following an update constitutes acceptance of the updated version. Developer may also update this EULA; material changes will be communicated through the App or App Store listing.

12. Termination

This Agreement is effective until terminated. Your rights under this Agreement terminate automatically if you fail to comply with any of its terms. Upon termination, you must cease all use of the App and delete all copies from your devices.

Developer reserves the right to discontinue the App or any subscription tier at any time with reasonable notice.

13. Governing law and dispute resolution

This Agreement shall be governed by and construed in accordance with the laws of the Commonwealth of Massachusetts, without regard to conflict of law provisions. Any dispute arising under this Agreement shall be resolved in the state or federal courts located in Massachusetts, and you consent to the personal jurisdiction of such courts.

14. Apple-specific terms

This Agreement is between you and RJK Enterprises LLC only, not Apple Inc. Apple is not responsible for the App or its content. In the event of any conflict between this Agreement and Apple’s App Store terms, Apple’s terms shall govern with respect to Apple’s role as a distributor. Apple has no obligation to provide maintenance or support for the App.

15. Entire agreement

This EULA and the Privacy Policy together constitute the entire agreement between you and RJK Enterprises LLC regarding the App and supersede all prior agreements, representations, and understandings.

16. Contact

For questions regarding this Agreement, contact: [email protected]