Terms of Service

These Terms of Service ("Terms") are the agreement between you and Mário Otruba ("we", "us") for the STCKD app and the website stckd.app. Please read them. They are written to be understood, not to trick you.

1. Who we are

STCKD is made and run by Mário Otruba (individual (natural person), not registered as a trader in the Slovak trade register), Martina Hattalu 2973, 026 01 Dolný Kubín, Slovakia. You can reach us at support@stckd.app or +421 940 857 804. Full provider details are on our Legal Notice.

2. Accepting these Terms

• If you create an account, you accept these Terms by ticking the box on the sign-up screen before you tap to create the account. We store the date and the version of the Terms you accepted.
• If you use the app without an account (as a guest), you accept these Terms by using the app. The Terms are linked on the app's sign-in screen, where you choose to continue without an account, and at https://stckd.app/terms, so you can read them before you start.
• If you do not agree, please do not use STCKD.

These Terms work together with our Privacy Policy, our Consumer Health Data Privacy Policy and our Health Disclaimer.

3. Who can use STCKD

You must be 18 or older. The app asks you to confirm this the first time you open it. If you are younger, you may not use STCKD. If we learn that an account belongs to someone under 18, we will delete it.

4. What STCKD is, and what it is not

STCKD is a personal record-keeping and reminder app. It lets you:

• keep your own log of supplements, peptides and other compounds you already take;
• set reminders at the times you choose;
• track what is left in a vial or pack;
• do reconstitution arithmetic on numbers you type in;
• record how you feel, symptoms and body weight, and see your own entries over time.

STCKD is not medical advice and not a medical device. It does not diagnose, treat or prevent anything. It does not recommend, check or adjust any dose. It does not tell you what to take, and it does not sell or supply any substance. Every compound, dose and schedule in the app comes from you. The calculator only does arithmetic on your numbers. The estimated-level chart is an educational estimate, not a blood level.

Talk to a qualified healthcare professional before you start, stop, change or combine anything. Read the full Health Disclaimer.

5. Your account

• An account is optional. Without one, your data stays only on your device. With one, it is also synced to our database so you can use it on more than one device.
• You can sign up with email and password, Sign in with Apple, or Sign in with Google.
• Keep your password private. Tell us at support@stckd.app if you think someone else has used your account.
• You are responsible for what happens in your account, unless it was caused by our failure to keep the service reasonably secure.
• You can export your data and delete your account at any time in the app. See Delete Your Account and Data.

6. Your licence to use STCKD

We give you a personal, non-exclusive, non-transferable, revocable licence to use the app and the website for your own, non-commercial use, under these Terms and Apple's licence terms (see section 21).

You must not:

• copy, sell, rent or resell the app or the service;
• reverse engineer, decompile or try to extract the source code, except where the law allows it and this restriction cannot apply;
• try to get into other people's accounts or data, or into our systems;
• overload, attack or disrupt the service, or use bots or scrapers on it;
• use STCKD to break the law or to harm anyone.

7. STCKD Pro subscriptions

STCKD Pro is an optional paid subscription that unlocks extra features. The free version stays usable without it.

Deleting your account or the app does not cancel your subscription. Apple keeps billing you until you cancel in your Apple subscription settings.

Price changes. Apple lets us change the subscription price. If we do, Apple tells you before the new price applies. Where Apple's rules or the law require it, the new price only applies if you agree to it. If you do not agree, you can cancel before the next renewal.

Restoring purchases. If you reinstall the app or use a new device with the same Apple Account, tap "Restore purchases" on the STCKD Pro screen.

8. Right of withdrawal in the EU and UK

If you are a consumer in the EU or the UK, you normally have 14 days to withdraw from a purchase made at a distance, without giving a reason.

• App Store purchases are made through Apple, so you use this right through Apple, at https://reportaproblem.apple.com.
• For digital content and services, the law allows the right of withdrawal to end once you have started using what you bought, if you asked for it to start straight away and confirmed that you would lose the right. Where that applies to your purchase, starting to use STCKD Pro immediately may mean you can no longer withdraw.
• This does not affect your legal guarantee rights in section 9.

9. Legal guarantee for digital content

If you are a consumer in the EU or the UK, the law gives you rights when digital content or a digital service does not work as promised ("lack of conformity"). These rights are free and we cannot take them away.

• If STCKD Pro or the app does not conform to these Terms or to what we described, tell us at support@stckd.app.
• We will first try to fix it, free of charge, within a reasonable time and without major inconvenience to you.
• If we cannot fix it, do not fix it in time, or the problem is serious, you can ask for a proportionate price reduction or end the contract and get back what you paid for the period affected. Because Apple collects the payment, any money back is paid through Apple.
• We provide the updates, including security updates, that are needed to keep the app working as described while you use it.

Consumers outside the EU and the UK keep whatever statutory rights their local law gives them.

10. Your content stays yours

Everything you type into STCKD (your compounds, doses, schedules, notes, symptoms, weight and so on) belongs to you. You give us only the permission we need to store it, sync it between your devices, back it up and show it back to you, for as long as you keep it in your account. We do not use it for anything else. How we handle it is explained in the Privacy Policy.

Nothing you enter is shown to other users. STCKD has no public profiles, feeds, comments or messaging.

You are responsible for what you enter. Please do not store content that is unlawful. If you, or an authority, want to tell us about unlawful content or anything else about the service, write to support@stckd.app. This is our single point of contact, in English.

11. Health and safety

STCKD is a tool for keeping your own records. You alone decide what you take and how much. Some compounds people track are prescription-only, not approved for human use, or restricted where you live. It is your responsibility to follow the law that applies to you and to get proper medical advice. Always check the numbers you enter and the results the calculator shows. Reminders are ordinary phone notifications and can fail (for example if notifications are switched off), so do not rely on them alone.

In an emergency, call your local emergency number. Full details: Health Disclaimer.

12. Our intellectual property

The app, the website, the STCKD name and logo, the design, the text and the code belong to us or to our licensors. The licence in section 6 is the only right you get. The app is licensed to you, not sold.

If you send us ideas or feedback, we may use them without owing you anything. You do not have to send any.

13. Third-party services

STCKD relies on some services run by other companies. Their own terms and privacy policies also apply when you use them:

• Apple: the App Store, payments and subscriptions, and Sign in with Apple.
• Google: Sign in with Google, if you choose it.
• Supabase: our database and sign-in service, which stores synced data for us.

We are not responsible for services we do not run. The full list of companies that process data for us is in the Privacy Policy.

14. Suspension and ending the agreement

You can stop at any time: delete your account in the app, or simply stop using it. If you pay for STCKD Pro, also cancel it with Apple (see section 7).

We may suspend or close an account if you seriously or repeatedly break these Terms, if the law requires it, or to protect other people or the service. Unless the law or a security risk prevents it, we will tell you first, say why, and give you a chance to fix the problem and to export your data. Closing an account does not cancel a STCKD Pro subscription bought through Apple; you cancel that with Apple.

If we decide to shut down STCKD completely, we will tell you in the app at least 30 days in advance, so you can export your data.

Sections 9, 10, 12, 16, 17, 18, 20 and 21 continue to apply after the agreement ends.

15. Changes to STCKD and to these Terms

Changes to the app. We keep improving STCKD, so features may change. We may change or remove a feature for a good reason: for example to fix bugs or security issues, to follow the law or Apple's rules, because a service we depend on changes, or to improve the app. Changes to STCKD Pro will not cost you anything extra.

If a change to STCKD Pro makes it noticeably worse for you (for example we remove a paid feature you use), we will tell you clearly and in advance in the app. You can then end the contract free of charge within 30 days of the change (or of our notice, if later) and get back the part of the price for the period after it ends. Because Apple collects the payment, this money is paid back through Apple. You do not have this right if we give you a way to keep the feature at no extra cost.

Changes to these Terms. We may update these Terms. For material changes, we will tell you in the app at least 14 days before they take effect, and ask account holders to accept the new version. If you do not agree, you can stop using STCKD, delete your account and cancel your subscription before the change takes effect. Small changes (for example typo fixes or new contact details) may take effect straight away. Old versions stay available in our archive.

16. Warranties

We work hard to make STCKD reliable, but we cannot promise it will always be available, free of errors, or that your data will never be lost. Keep your own export if your records matter to you. We do not check that what you enter is correct, safe or suitable for you.

If you are a consumer in the EU or the UK: your statutory rights (including the legal guarantee in section 9) apply in full, and nothing in this section limits them.

If you are anywhere else: to the extent the law allows, STCKD is provided "as is" and "as available", and we give no other warranties, express or implied, including merchantability, fitness for a particular purpose and non-infringement. Some places do not allow these exclusions, so they may not apply to you.

17. Our liability

What we never exclude. Nothing in these Terms limits or excludes our liability:

• for death or personal injury caused by our negligence;
• for fraud or fraudulent misrepresentation;
• for damage we cause intentionally or through gross negligence;
• under product-liability law, including the national laws implementing the EU Product Liability Directive (EU) 2024/2853 from 9 December 2026;
• for anything else the law does not allow us to limit, including your mandatory rights as a consumer.

If you are a consumer in the EU or the UK: we are liable under the statutory rules for loss or damage caused by our breach of these Terms or our lack of reasonable care, where that loss or damage was foreseeable when the agreement was made. We are not liable for loss that was not foreseeable, or for loss caused by your own decisions about what to take, based on entries you made yourself.

If you are anywhere else: to the extent the law allows, we are not liable for indirect, incidental, special or consequential loss, lost profits or lost data, or for any decision you make about any substance. Our total liability for all claims is limited to the amount you paid for STCKD Pro in the 12 months before the claim.

18. Governing law and disputes

These Terms are governed by the laws of the Slovak Republic.

If you are a consumer, this choice of law does not take away the protection of the mandatory rules of the country where you live. You may bring a claim in the courts of your home country, and if you live in the EU we can only bring a claim against you there. These Terms contain no arbitration clause and no class-action waiver.

Please contact us first at support@stckd.app. Most problems are solved quickly by email.

Alternative dispute resolution. If you are a consumer and we cannot solve your complaint, you can ask for out-of-court dispute resolution. The ADR body for our disputes is Slovenská obchodná inšpekcia (Slovak Trade Inspection), Ústredný inšpektorát, odbor medzinárodných vzťahov a alternatívneho riešenia spotrebiteľských sporov, Bajkalská 21/A, P.O. Box 29, 827 99 Bratislava 27, Slovakia, ars@soi.sk, www.soi.sk. ADR through this body is free for consumers. You can also use an ADR body in your own country if one is competent. You do not have to use ADR before going to court.

Consumer protection authority. The authority that supervises us under Slovak consumer protection law is Slovenská obchodná inšpekcia, Inšpektorát SOI pre Žilinský kraj, Predmestská 71, P.O. Box B-89, 011 79 Žilina 1, Slovakia.

19. Export and sanctions

You may not use STCKD if you are located in a country under a US government embargo, or if you are on a US government list of prohibited or restricted parties, or if EU sanctions law prohibits us from dealing with you.

20. Things that do not change your rights

• Entire agreement. These Terms, together with the documents linked in section 2 and Apple's licence terms, are the whole agreement between you and us about STCKD.
• Severability. If a court finds part of these Terms invalid, the rest still applies.
• No waiver. If we do not enforce a right straight away, we can still enforce it later.
• Assignment. You may not transfer your rights under these Terms to someone else. We may transfer this agreement to another person or company that takes over STCKD, if your rights are not reduced. We will tell you in advance, and you can end the agreement if you do not agree.
• Language. These Terms are written in English. The English version applies.

21. Apple's licence terms

You download STCKD from the Apple App Store. Your licence to use the app itself is governed by Apple's Licensed Application End User License Agreement (the "Apple Standard EULA"). These Terms add to it and cover the service, your account and STCKD Pro. If the two conflict on the licence to the app, the Apple Standard EULA applies; for everything else, these Terms apply.

You also acknowledge that:

• this agreement is between you and us, not Apple;
• we, not Apple, are responsible for STCKD, its content, maintenance and support. Apple has no obligation to provide any maintenance or support for it;
• if the app does not conform to any warranty that applies, you may notify Apple and Apple may refund the purchase price. Apart from that, Apple has no warranty obligation for the app;
• we, not Apple, are responsible for handling any claims about the app, including product-liability claims, claims that the app does not meet legal or regulatory requirements, and consumer-protection or privacy claims;
• if anyone claims that the app or your use of it infringes their intellectual property, we, not Apple, are responsible for investigating, defending and settling that claim;
• Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.

22. Contact

Mário Otruba, Martina Hattalu 2973, 026 01 Dolný Kubín, Slovakia

Email: support@stckd.app · Phone: +421 940 857 804

More details: Legal Notice.