Mainstay Terms of Service

Last Updated: August 16, 2026 · Terms Version 1.1

Mainstay ("the App") is a personal AI fitness coach for iOS and Apple Watch, operated by ALC SFR LLC, a Wyoming limited liability company, doing business as Mainstay ("we," "us"). These Terms of Service ("Terms") govern your use of the App. By creating an account or using the App, you agree to these Terms. If you do not agree, do not use the App.

Our Privacy Policy explains how we handle your data and is part of these Terms.

1. Important Health Disclaimer

Read this section carefully. It affects your safety.

Mainstay provides AI-generated fitness and exercise guidance. It is not medical advice, and the App is not a medical device, healthcare provider, or substitute for professional medical care.

• Consult a physician before starting. Talk to your doctor before beginning any exercise program, especially if you have a heart condition, high blood pressure, joint or muscle injuries, are pregnant, or have any other medical condition.
• You assume the risk of exercise. Physical exercise carries inherent risks, including muscle and joint injury, cardiovascular events, and in rare cases serious injury or death. By using the App, you voluntarily accept these risks.
• Stop if something hurts. If you experience pain, dizziness, shortness of breath, chest discomfort, or anything that feels wrong during a workout, stop immediately and seek medical attention if needed. No workout plan is worth an injury.
• Know your limits. The App suggests weights, exercises, and intensity based on the data you provide and your logged history. Only you can feel what your body is telling you. Use weights you can control with good form.
• Readiness scores are estimates. Recovery and readiness metrics derived from sleep, heart rate variability, and resting heart rate are informational estimates, not medical measurements. Do not use them to diagnose or monitor any health condition.

2. AI-Generated Coaching Disclaimer

The App's workout plans, coaching chat responses, exercise recommendations, and motivational messages are generated by artificial intelligence.

• AI-generated content may contain errors, including unsuitable exercise selections, incorrect weight suggestions, or inaccurate form cues.
• The AI coach is not a certified personal trainer and is not a substitute for in-person professional instruction, particularly on exercise form and technique. If you are unsure how to perform a movement safely, get instruction from a qualified trainer before attempting it.
• The AI coach cannot see you, cannot evaluate your form, and relies entirely on the information you provide. Inaccurate or incomplete information (for example, an unreported injury) will produce less safe recommendations.
• Apply your own judgment to every recommendation. If a suggestion seems wrong for your body, skip it.
• No guarantee of results. Fitness outcomes depend on many factors outside the App's control, including effort, consistency, nutrition, sleep, and genetics. We do not promise any particular strength, endurance, weight, or health outcome.

3. Eligibility

You must be at least 17 years old to use the App. By using the App, you confirm that you meet this requirement and that the information you provide during onboarding (including injury history and experience level) is accurate. Providing inaccurate health or injury information will produce less safe recommendations, and you accept responsibility for the accuracy of what you provide.

3a. Beta Program (TestFlight)

If you use a pre-release version of the App through Apple TestFlight, the following additional terms apply:

• Beta software is unfinished. Pre-release builds may contain bugs, may crash, may lose or reset data, and may change or remove features without notice. Do not rely on a beta build as your only record of your training.
• Adults only, healthy participants only. The beta program is limited to users who are at least 18 years old, are not pregnant, are not in active injury rehabilitation, and have no medical condition that makes unsupervised exercise inadvisable. If any of these apply to you, do not participate in the beta.
• Free of charge. Beta access is free. Beta access is not a promise of free access after launch, of any particular launch price, or that the product will launch at all.
• Feedback. You are not required to give feedback, but any feedback, suggestions, or ideas you do provide may be used by us to improve the product without obligation or compensation to you. We will only quote you publicly with your separate permission.
• Access may end anytime. We may add, remove, or suspend beta testers, or end the beta program, at our discretion.
• Apple's TestFlight terms also apply to beta use. All other sections of these Terms, including the health disclaimer, AI disclaimer, warranty disclaimer, and limitation of liability, apply fully during the beta.

4. Subscriptions and Billing

Mainstay offers auto-renewing subscriptions purchased through Apple's App Store:

• Monthly: $24.99 per month
• Annual: $199.99 per year

Pricing may vary by region and is shown in the App before purchase. Promotional pricing (such as founding-member offer codes) is governed by the offer's stated terms at redemption; promotional prices apply only while the qualifying subscription remains continuously active.

• Free trial. New subscribers receive a 7-day free trial. You will not be charged if you cancel at least 24 hours before the trial ends. If you do not cancel, your subscription begins automatically at the end of the trial.
• Auto-renewal. Subscriptions renew automatically at the end of each billing period unless cancelled at least 24 hours before the period ends. Your Apple ID account is charged for renewal within 24 hours before the end of the current period.
• Cancellation. You can cancel anytime in your device's Settings > Apple ID > Subscriptions, or through the App Store. Cancelling stops future renewals; you keep access through the end of the period you already paid for. Deleting the App does not cancel your subscription.
• Refunds. All purchases are processed by Apple. Refund requests are handled by Apple under Apple's own refund policy; we cannot issue refunds directly. To request a refund, visit reportaproblem.apple.com.
• Price changes. If we change subscription prices, Apple will notify you in advance and, where required, ask you to consent before the new price applies.

5. Your Account

You sign in with your Apple ID (Sign in with Apple). You are responsible for maintaining the security of your device and account. Notify us if you believe your account has been accessed without authorization. You may request deletion of your account and data as described in the Privacy Policy.

6. Acceptable Use

You agree not to:

• Use the App for any unlawful purpose;
• Attempt to access other users' data or accounts;
• Reverse engineer, decompile, or probe the App or our servers, or circumvent authentication or rate limits;
• Use automated scripts to access the service or scrape its content;
• Abuse the AI coach feature, including attempting to make it produce harmful content or using it for purposes unrelated to fitness coaching;
• Resell, sublicense, or commercially exploit the App or its content without our written permission.

We apply fair-use rate limits to AI features (such as daily limits on coach messages and plan generations) to keep the service reliable for everyone.

7. Intellectual Property

The App, including its software, design, exercise library, and branding, is owned by us and protected by intellectual property laws. We grant you a personal, non-exclusive, non-transferable license to use the App for your own fitness training. Your workout logs and personal data remain yours, as described in the Privacy Policy.

8. Service Availability

The App depends on network connectivity and our backend servers for AI plan generation, coach chat, and sync. We aim for high availability but do not guarantee uninterrupted service. Features may change, improve, or be removed as the product evolves. We will not materially reduce the core functionality of an active paid subscription without notice.

9. Account Termination

You may stop using the App and delete your account at any time. We may suspend or terminate your account if you violate these Terms, abuse the service, or create risk or legal exposure for us or other users. Where reasonable, we will warn you first. If we terminate your account without cause while you have an active paid subscription, your refund recourse is through Apple as described in Section 4. Sections 1, 2, 10, 11, and 12 survive termination.

9a. Acceptance and Records

When you create an account, we record the version of these Terms in effect, your acceptance, and a timestamp. When we materially update the Terms, we will present the updated version in the App and record your continued use or re-acceptance against the new version number.

10. Disclaimer of Warranties

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE APP WILL BE ERROR-FREE, THAT AI-GENERATED CONTENT WILL BE ACCURATE OR SAFE FOR YOUR SPECIFIC CIRCUMSTANCES, OR THAT THE SERVICE WILL BE UNINTERRUPTED.

11. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR ANY PERSONAL INJURY ARISING FROM YOUR EXERCISE ACTIVITY, LOSS OF DATA, OR LOSS OF PROFITS, ARISING OUT OF OR RELATED TO YOUR USE OF THE APP. OUR TOTAL AGGREGATE LIABILITY FOR ANY CLAIM ARISING OUT OF THESE TERMS OR THE APP WILL NOT EXCEED THE AMOUNT YOU PAID US IN THE TWELVE (12) MONTHS BEFORE THE CLAIM AROSE.

Some jurisdictions do not allow the exclusion or limitation of certain damages, so some of the above limitations may not apply to you.

12. Governing Law

These Terms are governed by the laws of the State of Wyoming, without regard to its conflict of law principles. Any disputes will be resolved in the state or federal courts located in Wyoming. (Note for attorney review: confirm governing law and venue given the entity's Wyoming formation, where the founder actually operates, and where users are located; whether an arbitration clause is advisable; and whether operating the business from California triggers foreign-qualification and franchise-tax obligations there.)

13. Changes to These Terms

We may update these Terms from time to time. Material changes will be communicated through the App or via email, and the "Last Updated" date above will change. Continued use of the App after changes take effect constitutes acceptance of the updated Terms.

14. Contact

Questions about these Terms? Contact us at: andrew.collins188@gmail.com