Privacy Policy
Last updated: March 24, 2026
Skin Twins ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.
Information We Collect
We collect information you provide directly to us:
- Account Information: When you create an account, we may collect your email address and authentication details. You may also choose to sign in anonymously, with Apple, or with Google.
- Profile Information: Information you add to your profile, such as your first name, skin type, Fitzpatrick skin tone, and skin concerns.
- Routine Data: Products you add, routines you track, daily logs, and progress information you create in the app.
- Progress Photos: Photos you take in the app are stored locally on your device by default and are not uploaded to our servers as part of normal app use.
- Community Data: If you choose to use community features, we may store the profile and routine information you choose to share, as well as group memberships, posts, replies, and reactions.
How We Use Your Information
We use the information we collect to:
- Provide, maintain, and improve the Skin Twins app
- Authenticate your account and let you sign in across supported login methods
- Show you skin matches and community content based on profile information and shared routines
- Let you optionally share your routine and participate in community features
- Send you local on-device reminders about your routines and progress, if you enable notifications
- Process your subscription and manage your account
- Respond to your comments and questions
Data Storage
Local-First Approach: Your skincare data, including progress photos, is stored locally on your device by default.
If you create an account or use community features, we may store certain account, profile, and community-related data on our service providers' systems to support authentication, subscriptions, skin matching, shared routines, groups, posts, replies, leaderboards, and related features.
We do not currently provide a general-purpose cloud backup or cross-device sync service for all skincare history and photos through the app.
Data Sharing
We do not sell your personal information. We may share information only in these circumstances:
- With Your Consent: When you choose to share your routine, participate in groups, post in the community, or otherwise make content visible to other users
- Service Providers: With third-party services that help us operate the app, such as authentication and subscription providers
- Legal Requirements: If required by law or to protect our rights
Third-Party Services
Our app uses the following third-party services:
- Supabase: For authentication and community-related data storage
- RevenueCat: For subscription management
- Apple Sign In and Google Sign-In: Optional sign-in providers
Your Rights
You have the right to:
- Access: Request a copy of your personal data
- Delete: Request deletion of your account and associated server-side data by contacting us
- Opt Out: Disable routine sharing and community participation at any time through the app where those settings are available
Photos and Sharing
Your progress photos stay on your device unless you choose to share an image yourself using your device's built-in sharing options. When you share a generated progress card, that share is initiated by you through your device.
Data Security
We implement appropriate security measures to protect your personal information. However, no method of transmission over the Internet is 100% secure.
Children's Privacy
Skin Twins is not intended for children under 13. We do not knowingly collect personal information from children under 13.
Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the "Last updated" date.
Contact Us
If you have any questions about this Privacy Policy, please contact us at:
[email protected] or visit our support page.