Effective Date: November 19, 2025

These Terms of Service ("Terms") govern your access to and use of Siren, an incident management and alerting platform operated by Split Rock AI LLC ("we," "our," or "us"). By using Siren, you agree to these Terms. If you do not agree, please do not use the service.

1. Age Requirement

You must be at least 18 years old to use Siren. By using our service, you represent and warrant that you meet this age requirement.

2. Account Responsibility & Authentication

Account Security:

• You are responsible for maintaining the confidentiality of your account credentials
• You are responsible for all activities that occur under your account
• You must notify us immediately of any unauthorized access
• You agree to use the service only for lawful purposes

Magic Link Authentication:

• Siren uses passwordless authentication via magic links sent to your email
• Magic links are single-use and expire after 15 minutes
• Do not share or forward magic links to others
• We are not responsible for unauthorized access resulting from shared or forwarded links

3. What Siren Does

Siren is an incident management and alerting platform designed for software engineering teams. Our service provides:

4. SMS Terms and Conditions

Company Information

These SMS terms apply to text messaging services provided by Split Rock AI LLC, operating as Siren.

Program Description

Siren provides optional SMS notifications for on-call schedule reminders and non-incident communications. Critical incident alerts are delivered via voice calls, not SMS.

SMS Message Types:

• On-Call Schedule Reminders: Notifications when your shift is starting
• Schedule Changes: Updates about rotation changes
• Account Notifications: Service-related updates

All SMS messages are service-related notifications. We do not send marketing, promotional, or advertising messages. Critical incident alerts are delivered via voice calls.

Phone Verification

Before sending voice call alerts, we verify your phone number using a third-party verification service. This ensures:

• The phone number belongs to you
• You have explicitly consented to receive alerts
• The number is capable of receiving calls and SMS messages

Opt-In Process

To receive SMS notifications (schedule reminders, etc.), you must:

1. Provide your mobile phone number on our platform
2. Review and agree to these SMS Terms and our Privacy Policy
3. Check the consent checkbox confirming your agreement
4. Complete phone verification by entering the code we send you
5. Enable SMS notifications in your account settings

By completing this process, you consent to receive automated text messages from Split Rock AI LLC (operating as Siren) at the phone number you provided.

Message Frequency

SMS message frequency is typically low since SMS is used only for schedule reminders and non-incident notifications.

Factors that affect frequency:

• Your on-call rotation schedule (daily, weekly)
• Whether you have schedule reminders enabled
• Account and service-related updates

Message and Data Rates

Message and data rates may apply. Standard text messaging rates from your mobile carrier will apply to all messages sent and received. Please check with your carrier for details about your messaging plan.

STOP - Opt-Out Instructions

You may opt out of SMS notifications at any time by:

• Reply STOP: Text STOP to any message from our service to immediately cancel all future SMS messages to that number
• Disable in Settings: Visit your account settings and disable SMS notifications

After you send STOP, we will send you one final SMS message to confirm that you have been unsubscribed. You will no longer receive SMS notifications.

Note: Opting out of SMS only affects schedule reminders and non-incident notifications. Voice call alerts for critical incidents are a separate feature and will continue as long as your phone number is verified.

HELP - Support Instructions

For assistance with our SMS service:

• Reply HELP: Text HELP to any message from our service
• Email Support: [email protected]

Supported Carriers

Our SMS service is available on major U.S. carriers including AT&T, T-Mobile, Verizon, Sprint, and other participating wireless carriers. Coverage and availability may vary.

Carrier Liability Disclaimer

Wireless carriers (including AT&T, Verizon, T-Mobile, Sprint, and others) are not liable for delayed or undelivered messages. Message delivery is subject to carrier network availability, device compatibility, network congestion, and other factors outside of Siren's and the carriers' control.

We make reasonable efforts to ensure timely delivery of incident alerts but cannot guarantee delivery due to these external factors.

SMS Privacy and Data Protection

Your mobile phone number and SMS consent data are stored securely with AES-256 encryption at rest.

We do not:

• Sell, rent, or share your mobile phone number with third parties for marketing purposes
• Share your SMS opt-in consent data with anyone except as required by law
• Use your phone number for promotional or advertising messages

See our Privacy Policy for complete details.

5. Pricing and Billing

Siren operates on a freemium model with a free tier and paid tier. Organizations receive a one-time allotment of free incidents with voice call alerts. After exhausting the free tier, organizations transition to a paid tier with per-incident pricing.

Billing: Organizations on the paid tier are billed on a monthly billing cycle. Current pricing details are available in your organization's billing settings within the application.

Payment Required: After exhausting your free tier, you must add a payment method to continue receiving voice call alerts. Incident tracking and web dashboard access continue regardless of payment status.

Payment Processing: All payments are processed securely through Stripe. We do not store your credit card information on our servers.

6. Data Security

We implement industry-standard security practices:

• Encryption at rest: AES-256 encryption for all personal information (email, name, phone)
• Encryption in transit: TLS/HTTPS for all data transmission
• Infrastructure: Hosted on enterprise-grade cloud infrastructure
• Key storage: Encryption keys stored in secure, hardened key management systems

7. Acceptable Use Policy

You agree not to:

• Use the service for any unlawful, fraudulent, or malicious purpose
• Attempt to gain unauthorized access to our systems or other users' accounts
• Interfere with or disrupt the service
• Abuse the alerting system by generating false or excessive alerts
• Reverse engineer or attempt to extract source code
• Resell or redistribute access without written permission

8. Intellectual Property

All content, features, trademarks, and branding associated with Siren are the exclusive property of Split Rock AI LLC or its licensors.

Your Content: You retain ownership of any data or content you submit to Siren. By using our service, you grant us a limited license to store, process, and display your content solely for providing the service to you.

9. Service Availability & Modifications

We are committed to providing reliable, secure, and highly available service. We continuously monitor our systems and work to resolve issues promptly. However, as with any technology platform, we cannot guarantee 100% uptime, complete elimination of errors, or absolute security. We maintain industry-standard security practices and strive to minimize service disruptions.

We reserve the right to modify, update, or discontinue features at any time. We will provide reasonable notice (30 days) of significant changes that affect your use of the service.

10. Termination

By You: You may stop using Siren at any time. To delete your account, contact [email protected]. Upon deletion, your personal information will be removed within 30 days.

By Us: We reserve the right to suspend or terminate your account if you violate these Terms, engage in fraudulent activity, or as required by law.

11. Disclaimers

Siren is provided on an "as is" and "as available" basis.

While we strive to provide excellent service, we disclaim all warranties, including:

• Implied warranties of merchantability or fitness for a particular purpose
• Guarantees of uninterrupted, secure, or error-free service
• Warranties regarding accuracy or reliability of content

Incident Response: We are not responsible for your organization's ability to respond to incidents, delays in incident detection by monitoring systems, voice call or SMS delivery delays caused by wireless carriers, or incidents that occur when you are not using Siren.

12. Limitation of Liability

To the maximum extent permitted by law, Split Rock AI LLC shall not be liable for:

• Indirect, incidental, special, consequential, or punitive damages
• Loss of profits, revenue, data, or business opportunities
• Service interruptions or data loss
• Damages caused by third-party services (wireless carriers, email providers, etc.)

Maximum Liability: Our total liability for all claims shall not exceed the amount you paid us in the 12 months preceding the claim, or $100, whichever is greater.

13. Changes to These Terms

We may update these Terms from time to time. We will notify you of material changes via email or prominent notice in the application.

Your continued use of Siren after changes become effective constitutes acceptance of the updated Terms.

14. Governing Law

These Terms are governed by the laws of the United States and the State of Minnesota, without regard to conflict of laws principles.

Any disputes shall be subject to the exclusive jurisdiction of the state and federal courts located in Minnesota.

15. Contact Information

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

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Last Updated: November 19, 2025 | Version: 1.0