Privacy Policy
Last updated: January 25, 2026
This Privacy Policy explains how Fystash ("Fystash", "we", "us") collects, uses, shares, and protects information when you use our website and mobile applications (the "Service"). By using the Service, you agree to the collection and use of information in accordance with this policy.
Information we collect
We collect information you provide, information generated through your use of the Service, and limited technical information needed to operate the Service.
Account information: name, username, email, and authentication details.
Health & fitness information: nutrition logs, meal details, hydration logs, weight logs, workouts, program participation, and related notes you choose to enter.
Photos and media: meal photos (including multiple images), workout photos, and other images you upload to use Service features.
Community & social information: communities you create/join, join codes, invites, followers/following, and profile settings (including privacy settings).
Usage and device information: app interactions, basic device identifiers, IP address, timestamps, and diagnostic logs needed for reliability, security, and abuse prevention.
Purchases and subscriptions: if you subscribe or purchase credits, we receive information necessary to confirm entitlements (for example, purchase status), but we do not receive full payment card details.
How we use information
Provide and operate the Service, including nutrition and training tracking.
Power AI features (e.g., coaching chat, food photo understanding, label reading, and recommendations) based on the inputs you provide.
Maintain your account, preferences, and history across sessions.
Improve safety, security, and reliability; prevent fraud and abuse.
Communicate with you about updates, support, and important notices.
AI processing
When you use AI-powered features, we process the content you submit (such as chat messages, nutrition details, and photos) to generate responses and actions (e.g., meal logging, diet plan creation, workout edits). AI outputs are generated automatically and may be inaccurate.
Sharing and disclosure
We do not sell your personal information. We may share information:
With service providers that help us operate the Service (e.g., hosting, analytics, customer support), under confidentiality obligations.
With other users when you choose to share through community or social features, subject to your privacy settings.
For legal and safety reasons if required by law or to protect the rights, safety, and security of users and the Service.
In connection with a business transfer (e.g., merger, acquisition), consistent with applicable law.
Retention
We retain information for as long as needed to provide the Service, comply with legal obligations, resolve disputes, and enforce our agreements. You may request deletion of your account and associated data via the Contact page.
Your choices
Update profile and privacy settings in the app (where available).
Control what you share publicly (e.g., leaderboards) via privacy settings.
Request access, correction, or deletion via our Contact page.
Children’s privacy
The Service is not intended for children under 13 (or the minimum age required by your jurisdiction). If you believe a child has provided us personal information, contact us and we will take appropriate steps.
Security
We use administrative, technical, and organizational measures designed to protect information. No method of transmission or storage is 100% secure, and we cannot guarantee absolute security.
Contact
For privacy questions or requests, contact us via: support@fystash.ai