Privacy Policy

1 Who we are

Second Sun is a stroke and brain injury survivor support platform created by Shawn Springs, a stroke survivor of 12 years. Our app provides an AI companion (Sol), milestone tracking, mood check-ins, chair yoga resources, and caregiver connection tools to help survivors and their caregivers navigate recovery.

This Privacy Policy explains how we handle your personal information when you use the Second Sun mobile application and related services. By using Second Sun, you agree to the practices described here.

2 What information we collect

We collect information you provide directly and information generated by your use of the app.

Account information

• Email address (used to create and identify your account)
• Display name
• Account type (survivor or caregiver)

Health and recovery information (provided voluntarily)

• Stroke or brain injury type and date
• Affected areas and deficits
• Current therapy status and activity level
• Recovery stage
• Daily mood check-ins
• Milestones you choose to log

Caregiver connection information

• Invite codes used to link caregiver and survivor accounts
• Relationship to survivor

App usage information

• Messages sent to Sol (our AI companion)
• Number of AI interactions per day
• Features accessed within the app

3 How we use your information

We use the information we collect to:

• Create and maintain your account
• Provide personalized responses from Sol, our AI companion
• Display your milestones, mood history, and recovery progress
• Connect survivors and caregivers who have exchanged invite codes
• Enforce daily usage limits for AI interactions
• Improve the reliability and quality of our services
• Respond to support requests

We do not use your health information for advertising, sell your data to third parties, or use your personal information to train AI models without explicit consent.

4 Sol AI companion and third-party AI

Sol is a supportive companion and is not a medical provider. Sol does not provide medical diagnoses, treatment plans, or clinical advice. Always consult a qualified healthcare professional for medical decisions related to your recovery.

5 Who we share data with

We share your information only in the following circumstances:

• Anthropic, Inc. — when you use Sol, as described in Section 4 above
• Supabase — our database and authentication provider (supabase.com). Your account data and recovery information are stored securely in Supabase's infrastructure
• Connected caregivers — if you link accounts with a caregiver using an invite code, they may see milestone and check-in information you share within the app
• Legal requirements — if required by law, court order, or to protect the rights and safety of our users

We do not sell, rent, or trade your personal information to any third party for marketing purposes.

6 Data storage and security

Your data is stored in Supabase, which provides encrypted storage with row-level security controls. This means your data is only accessible to your own authenticated account and to caregivers you have explicitly connected with.

AI consent preferences are stored locally on your device using AsyncStorage and are tied to your user account.

We take reasonable technical and organizational measures to protect your information. However, no method of transmission over the internet or electronic storage is 100% secure.

7 Your rights and choices

You have the following rights regarding your personal information:

• Access — you can view all information you have provided within the app at any time
• Correction — you can update your profile and recovery information in the app settings
• Deletion — you can permanently delete your account and all associated data (see Section 8)
• Withdrawal of AI consent — you may decline AI data sharing when first prompted; this will prevent use of Sol but will not affect other app features
• Data portability — you may contact us to request a copy of the data we hold about you

To exercise any of these rights, use the Account Settings screen in the app or contact us at support@secondsunapp.com.

8 Account deletion

You may permanently delete your Second Sun account at any time from within the app:

1. Open the app and sign in
2. Scroll to the bottom of your dashboard and tap Account Settings
3. Tap Delete My Account and confirm

Deleting your account permanently removes all of the following from our systems:

• Your account profile and authentication credentials
• Your stroke or caregiver profile
• All check-ins and milestone records
• All Sol conversation usage records
• All caregiver connection and invite code data

This action is permanent and cannot be undone. Data is deleted immediately upon confirmation.

9 Children's privacy

Second Sun is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with personal information, please contact us at support@secondsunapp.com and we will delete that information promptly.

10 Changes to this policy

We may update this Privacy Policy from time to time. When we make material changes, we will update the "Last updated" date at the top of this page and, where appropriate, notify you within the app.

Your continued use of Second Sun after any changes indicates your acceptance of the updated policy.

11 Contact us

If you have questions, concerns, or requests regarding this Privacy Policy or how we handle your data, please reach out: