Last updated: April 30, 2026
This Privacy Policy describes how BeautyStack ("we," "us," or "our") collects, uses, and shares information when you use our mobile application and website (collectively, the "Service").
By using BeautyStack, you agree to the collection and use of information in accordance with this policy. If you do not agree with this policy, please do not use the Service.
Information you provide directly:
Information from third-party authentication providers: If you sign in with Apple or Google, we receive your name and email address as provided by those services. We do not receive your password.
Information collected automatically:
We use the information we collect to:
Public profile content: Your username, profile photo, bio, public stacks, and follower relationships are visible to other users of the Service. You can adjust these settings in the app.
Service providers: We share information with trusted third-party services that help us operate the app, including:
Affiliate partners: When you click an affiliate link in BeautyStack and make a purchase, the retailer (such as Amazon, Sephora, or Ulta) is informed that the referral came from BeautyStack so we can earn a commission. We do not share your identity with these partners; they only know that the purchase originated from our app.
Legal requirements: We may disclose information when required by law, subpoena, or to protect the rights, property, or safety of BeautyStack, our users, or others.
Business transfers: If BeautyStack is acquired, merged, or sells assets, your information may be transferred as part of that transaction. We will notify you of any such change.
We do not sell your personal information.
We retain your information for as long as your account is active or as needed to provide the Service. We may retain certain information after account deletion if required to comply with legal obligations, resolve disputes, or enforce our agreements.
We use industry-standard measures to protect your information, including encryption in transit (TLS) and at rest, hashed passwords (Argon2), and secure authentication tokens. However, no method of transmission over the Internet is 100% secure, and we cannot guarantee absolute security.
BeautyStack is not directed to children under 13, and 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 hello@beautystack.app and we will delete it.
BeautyStack is operated from the United States. If you access the Service from outside the U.S., you consent to the transfer and processing of your information in the U.S., where data protection laws may differ from those in your country.
Depending on where you live, you may have rights regarding your personal information, including the right to access, correct, delete, or port your data, and the right to restrict or object to certain processing. To exercise these rights, contact us at hello@beautystack.app.
California residents: Under the California Consumer Privacy Act (CCPA), you have additional rights regarding your personal information. We do not sell personal information.
EU/UK residents: Under the GDPR, the legal basis for our processing is your consent, the performance of a contract, our legitimate interests, and compliance with legal obligations.
We may update this Privacy Policy from time to time. We will notify you of material changes by email or through the app. The "Last updated" date at the top reflects the most recent changes.
If you have questions or concerns about this Privacy Policy or our data practices, contact us at hello@beautystack.app.