Privacy Policy

Last updated: February 15, 2026

Alchemy Digital ("we", "our", or "us") operates the StackCheck mobile application. This page informs you of our policies regarding the collection, use, and disclosure of personal information when you use our app.

Information We Collect

When you use StackCheck, we collect:

• Account Information: Email address and password when you create an account
• Food & Nutrition Data: Foods you log, including photos you upload for AI identification
• Supplement Data: Supplements you track and logging history
• Health Goals: Your selected health and wellness goals
• Device Information: Device type, operating system, and timezone for app functionality

How We Use Your Information

We use your information to:

• Provide personalized nutrition tracking and supplement recommendations
• Generate your Supplement Report based on your food intake
• Improve our AI food identification accuracy
• Process payments for premium features
• Send important updates about your account or the app

Data Storage & Security

Your data is stored securely on Amazon Web Services (AWS) infrastructure in the Asia-Pacific region. We use industry-standard encryption for data in transit and at rest. Authentication is handled via AWS Cognito with secure token management.

Third-Party Services

We use the following third-party services:

• Amazon Web Services (AWS): Cloud infrastructure, database storage, and AI services
• RevenueCat: Subscription and payment management
• FatSecret: Food nutrition database
• USDA FoodData Central: Supplementary nutrition data

Data Retention

We retain your data for as long as your account is active. You can request deletion of your account and all associated data at any time through the app settings.

Your Rights

You have the right to:

• Access the personal data we hold about you
• Request correction of inaccurate data
• Request deletion of your data
• Export your data in a portable format

Children's Privacy

StackCheck 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: hello@alchemy-digital.io