These Terms of Use (the “Terms”) form a binding agreement between you and Dead Pixel Studio (“we”, “us”, or “our”) governing your access to and use of the mobile applications Peptide Stack (Peptide AI) and Peptide Journal, the website at peptide-stack.app, and any related products, features, content, or services (together, the “Services”).

By installing, opening, or using any of the Services you confirm that you have read, understood, and agree to be bound by these Terms. If you do not agree, do not use the Services.

1. Important health disclaimer — not medical advice

The Services are provided for informational, educational, and personal-tracking purposes only. They are not a medical device, do not provide medical advice, do not diagnose, treat, cure, prevent, or mitigate any disease, and are not a substitute for the professional judgment of a qualified healthcare provider.

Any content, summaries, patterns, suggestions, calculators, or references generated by or displayed in the Services are for your personal reference only.
Peptides, GLP-1 receptor agonists, and other research compounds may be regulated, controlled, prescription-only, or unlawful to possess or use in your jurisdiction. It is your sole responsibility to determine the legal status of any substance you research or use and to comply with all applicable laws.
Always consult a licensed medical professional before starting, stopping, or changing any protocol, dose, injection site, or route of administration. Never disregard professional medical advice or delay seeking it because of something you read in the Services.
If you think you may have a medical emergency, call your local emergency number immediately.

2. Eligibility

You must be at least 17 years old (or the age of majority in your jurisdiction, whichever is greater) to use the Services. If you are using the Services on behalf of a legal entity, you represent that you have authority to bind that entity to these Terms.

3. What the Services do

The Services help you privately record and reflect on personal wellness data — including but not limited to dose logs, injection sites, body measurements, mood, sleep, side effects, journal entries, and photographs — and, where enabled, surface patterns using on-device machine learning. The Services may include a reference library of publicly available information about compounds. Nothing in that library constitutes an endorsement, recommendation, or offer to supply any substance.

4. Your account and your data

Most Services do not require an account. Data you record inside the Services is stored locally on your device and, if you enable iCloud, synchronised across your Apple devices via Apple’s CloudKit infrastructure using end-to-end encrypted containers controlled by your Apple ID. We do not have access to your journal content.

You are responsible for the accuracy of any data you enter and for keeping backups of information you value. To the extent permitted by law, we are not liable for any loss, corruption, or unavailability of your data.

5. Subscriptions, billing, and free trials

Certain features are available only through a paid subscription (“Pro”). Subscriptions are auto-renewing and are sold, billed, and managed by Apple through your App Store account under Apple’s standard Terms of Sale. Prices are shown in-app before purchase and are charged in the currency of your App Store region.

Your subscription renews automatically at the end of each billing period at the then-current price unless you cancel at least 24 hours before the renewal date.
You can manage or cancel your subscription at any time from Settings → Apple ID → Subscriptions on your iOS device.
If a free trial is offered, cancelling before the trial ends prevents the paid renewal. Portions of the trial period are forfeit when a paid subscription is purchased during a trial, consistent with Apple’s policy.
Refunds and rebills are handled exclusively by Apple. Requests should be submitted through reportaproblem.apple.com. We do not process refunds directly.

6. Acceptable use

You agree that you will not, and will not permit anyone else to:

use the Services to obtain, distribute, prescribe, or otherwise facilitate access to substances in a manner that violates applicable law;
rely on the Services as a substitute for professional medical, veterinary, pharmaceutical, or legal advice;
copy, reproduce, modify, translate, reverse-engineer, decompile, disassemble, sublicense, resell, or create derivative works of any part of the Services;
remove, obscure, or alter any proprietary notices in the Services;
submit false, misleading, defamatory, or infringing content;
use the Services in a way that could harm the Services or impair anyone else’s use of them.

7. Intellectual property

All copyrights, trademarks, trade dress, and other intellectual property rights in and to the Services (excluding your own journal content) are and remain the property of Dead Pixel Studio or its licensors. We grant you a limited, non-exclusive, non-transferable, revocable licence to install and use the applications on Apple-branded devices you own or control, solely for personal, non-commercial purposes and subject to Apple’s Standard EULA.

8. Third-party services

The Services rely on third-party providers, including but not limited to:

Apple — App Store, iCloud, CloudKit, StoreKit, Apple Intelligence. Governed by Apple’s terms and privacy policies.
RevenueCat for subscription entitlement validation. RevenueCat only receives an anonymised RevenueCat ID and Apple receipt metadata.
TelemetryDeck for anonymous product analytics (screen views, feature interactions). No personal identifiers, no journal content, and no device advertising identifier is transmitted.
Anthropic (Claude) and OpenAI (ChatGPT) for optional cloud-based stack analyses in Peptide Stack. Cloud analyses fire only when you explicitly request them. Peptide Journal never sends journal content to a cloud model.

Your use of these third-party services is governed by their own terms. We are not responsible for the availability or acts of any third-party provider.

9. Warranty disclaimer

To the maximum extent permitted by applicable law, the Services are provided “as is” and “as available”, without warranty of any kind, express or implied, including, without limitation, the implied warranties of merchantability, fitness for a particular purpose, non-infringement, and any warranties arising out of course of dealing or usage of trade. We do not warrant that the Services will be uninterrupted, error-free, secure, accurate, or free of viruses or other harmful components, nor that any content will be reliable or produce any particular result.

10. Limitation of liability

To the maximum extent permitted by applicable law, Dead Pixel Studio, its officers, employees, contractors, and agents will not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, revenue, data, goodwill, use, or other intangible losses, arising out of or in connection with your use of, or inability to use, the Services, whether based on warranty, contract, tort (including negligence), product liability, strict liability, or any other legal theory, and whether or not we have been informed of the possibility of such damages. Our aggregate liability for any claim arising out of or relating to the Services will not exceed the greater of the amount you actually paid us in the twelve (12) months preceding the event giving rise to the claim, or ten euros (€10).

Some jurisdictions do not allow the exclusion of certain warranties or the limitation of liability for certain damages. To the extent such exclusions or limitations are not permitted, our liability is limited to the smallest extent permitted by law.

11. Indemnification

You agree to defend, indemnify, and hold harmless Dead Pixel Studio and its affiliates from and against any claims, liabilities, damages, losses, and expenses (including reasonable attorneys’ fees) arising out of or related to (i) your use or misuse of the Services, (ii) your violation of these Terms, (iii) your violation of any law or the rights of a third party, or (iv) any action taken by you in reliance on content from the Services.

12. Termination

We may suspend or terminate your access to the Services at any time, without notice, if we reasonably believe you have breached these Terms or if we cease offering the Services. You may stop using the Services at any time by deleting them from your device. Sections 1, 4, 7, 9, 10, 11, 13, 14, 15, and 16 survive termination.

13. Governing law and dispute resolution

These Terms are governed by the laws of the Federal Republic of Germany, without regard to its conflict-of-laws principles. Mandatory consumer-protection rights of the country in which you habitually reside remain unaffected. Any dispute arising out of or in connection with these Terms will be brought exclusively before the competent courts of Berlin, Germany, subject to any mandatory jurisdictional rights available to consumers.

14. Apple-specific terms

You acknowledge that these Terms are entered into between you and Dead Pixel Studio only, and not with Apple Inc. Apple is not responsible for the Services or their content. To the maximum extent permitted by law, Apple has no warranty obligation with respect to the Services. In the event of any failure of the Services to conform to any applicable warranty, you may notify Apple, and Apple will refund the applicable purchase price. Apple, and Apple’s subsidiaries, are third-party beneficiaries of these Terms and, upon your acceptance, will have the right (and will be deemed to have accepted the right) to enforce them against you as a third-party beneficiary.

15. Changes to these Terms

We may update these Terms from time to time. Material changes will be signalled in-app or on the Website, and the Effective date above will be revised. Continued use of the Services after the updated Terms take effect constitutes acceptance of the changes.

16. Miscellaneous

These Terms, together with the Privacy Policy, constitute the entire agreement between you and Dead Pixel Studio regarding the Services and supersede any prior agreements. If any provision is found unenforceable, the remaining provisions remain in full force. Our failure to enforce any right or provision is not a waiver of that right or provision. You may not assign these Terms without our prior written consent; we may assign these Terms freely.

17. Contact

Questions, notices, or requests under these Terms should be sent to info@deadpixel-studio.com.