Terms and Conditions

Last updated: March 2026

Overall terms for the Vitalli account

Stackwell is part of the Vitalli ecosystem. The general terms for the Vitalli account apply in addition to these app-specific terms; where they conflict, the overall terms prevail. You can read them here: Terms for the Vitalli account.

§0 Minimum age

Stackwell is for adults only. Use requires you to be at least 18 years old; you confirm this when creating the Vitalli account.

§1 Scope

These Terms and Conditions apply to the use of Stackwell, a supplement management app within the Vitalli ecosystem, operated by Vitalli, owner Mirco Stege, Höllenberg 12, 21441 Garstedt, Germany.

§2 Service Description

Stackwell enables supplement tracking, intake plans, nutrient analysis, AI-powered chat, and synergy detection.

§3 Beta Notice

Stackwell is in beta. Features may change. There is no guarantee of uninterrupted availability.

§4 User Account

Registration is via Vitalli SSO. The user is responsible for their credentials.

§5 Disclaimer

Stackwell provides information only and is NOT medical advice. Supplement recommendations are based on general knowledge and user-provided health context. Always consult a doctor or pharmacist before taking supplements or changing your medication.

§6 AI Notice

The AI chat provides general information. AI can make mistakes. Never use AI recommendations as a substitute for professional medical advice. Never change medications or supplements solely based on AI recommendations.

§7 Health Data

Users may enter sensitive health data (conditions, allergies, medications). This data is processed in accordance with GDPR Art. 9(2)(a) with explicit consent.

§8 Data Protection

See our Privacy Policy.

§9 Termination and Data Deletion

Users can delete their account and all data at any time (GDPR Art. 17).

§10 Changes

We may amend these Terms where there is a valid reason — for example a change in the law, in case law, or in the service itself. We will notify you of an amendment by email at least six weeks before it takes effect and point out your right to object. An amendment only takes effect for you if you agree to it; silence is not agreement. If you do not agree, you may continue to use Stackwell under the previous version or terminate at any time.

§11 Final Provisions

German law applies. If you are a consumer with your habitual residence in another EU state, the mandatory consumer-protection provisions of that state remain unaffected (Art. 6(2) Rome I). Invalid provisions do not affect the validity of the remaining provisions.

Contact: Vitalli, owner Mirco Stege · Höllenberg 12, 21441 Garstedt, Germany · hello@vitalli.app · VAT ID DE250141342