Effective date: September 28, 2026 | Last updated: September 28, 2026
These Terms are an agreement between you and Gabriel Mzaouakk, operating as Stackd, a sole proprietorship based in Massachusetts ("Stackd", "we", "us"). They cover the Stackd iOS app and the stackd.health website (the "Service"). By creating an account or using the Service, you agree to these Terms, our Privacy Policy, and our Medical Disclaimer.
Please read Section 13. It requires most disputes to be resolved by individual arbitration and waives class actions, unless you opt out.
You must be at least 18 years old and able to form a binding contract to use Stackd.
Stackd is an educational wellness tool for tracking nutrition, workouts, supplements, lab results, and health metrics, with AI-generated estimates and insights. Stackd does not provide medical advice, diagnosis, or treatment, and is not a substitute for a doctor, dietitian, physical therapist, or pharmacist. Our Medical Disclaimer explains this in detail and is part of these Terms.
Give accurate information and keep your login secure. You are responsible for activity on your account. Tell us right away at support@stackd.health if you think someone else has accessed it. One account per person, please.
You agree not to:
We may limit usage, for example daily AI limits, to keep the Service fair and working for everyone.
You own what you put into Stackd, including your logs, photos, lab results, recipes, and notes. You give us a limited license to store, process, and display your content only to run and improve the Service for you, including sending it to our AI provider as described in the Privacy Policy. Images you create with Stackd's share features are yours to post. If you post them publicly, you are responsible for what you share.
If you send us feedback or ideas, we may use them without any obligation to you.
The Stackd name, logos, app icon, designs, software, share templates, and content we create belong to Stackd and are protected by law. We give you a personal, non-transferable, revocable license to use the app for your own non-commercial use while you follow these Terms. Exercise illustrations and other third-party content remain the property of their owners and are licensed for use inside the app only.
AI features create estimates and educational text, including meal and recipe nutrition, lab report reading, insights, workout suggestions, and reports. These can be inaccurate or incomplete. Check important numbers yourself, and do not rely on AI output for medical decisions. Research citations are provided for context and do not mean the research applies to you.
Stackd works with services run by others, such as Apple (App Store, Apple Health, Sign in with Apple), Google Sign-In, Anthropic (AI), Supabase (hosting), RevenueCat (subscription management), and Instagram and Messages (when you choose to share). Your use of those services is governed by their own terms, and we are not responsible for them.
You can delete your account at any time in the app at Settings, Delete My Account. We may suspend or end your access if you seriously or repeatedly break these Terms, if required by law, or to protect users or the Service. If we end your access without cause, we will tell you. Sections 6 to 8 and 11 to 15 survive after your account ends.
The Service is provided "as is" and "as available". To the fullest extent the law allows, we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose, accuracy, and non-infringement. We do not promise the Service will be uninterrupted, error free, or that any estimate is correct. You use Stackd's health, nutrition, exercise, and AI content at your own risk. Some places do not allow these exclusions, so parts may not apply to you.
To the fullest extent the law allows, Stackd will not be liable for indirect, incidental, special, consequential, or punitive damages, or for lost data, profits, or goodwill, arising from the Service. Our total liability for any claim is limited to the greater of the amount you paid for Stackd in the 12 months before the claim, or US $100. Nothing in these Terms limits liability that cannot be limited by law, such as for fraud, gross negligence, or death or personal injury caused by our negligence.
Talk to us first. Email support@stackd.health and give us 30 days to try to resolve the issue informally.
Arbitration. If we cannot resolve it, you and Stackd agree that any dispute about the Service or these Terms will be settled by binding individual arbitration administered by the American Arbitration Association under its Consumer Arbitration Rules, instead of in court. Either of us may instead bring an individual claim in small claims court. Nothing here stops you from reporting issues to a government agency.
No class actions. Claims may only be brought individually, not as a plaintiff or class member in any class or representative proceeding.
Opting out. You can opt out of this Section 13 within 30 days of first accepting these Terms by emailing support@stackd.health with the subject "Arbitration opt-out" and your account email.
These Terms are governed by the laws of the Commonwealth of Massachusetts and applicable US federal law, without regard to conflict of law rules. If arbitration does not apply, disputes will be heard in the state or federal courts located in Massachusetts, unless the law where you live gives you the right to bring claims locally.
If you downloaded Stackd from Apple's App Store:
We may update these Terms. For material changes, we will notify you by email or in the app at least 14 days before they take effect. If you keep using Stackd after that, you accept the updated Terms. If you do not agree, you can delete your account.
These Terms, the Privacy Policy, and the Medical Disclaimer are the entire agreement between us. If any part is found unenforceable, the rest still applies. Not enforcing a right is not a waiver. You may not transfer these Terms. We may transfer them as part of a business transfer.