Terms of Service

1. Acceptance of these Terms

These Terms form a binding legal agreement between you and T3D2 Software Solutions, a sole proprietorship registered in the Republic of Serbia, owned and operated by Damir Gojović ("T3D2", "we", "us", or "our"). They apply to the ShuntCare mobile application for Android (and, when published, iOS) and to the public website at https://shuntcare.com (together, the "Service").

You accept these Terms when you tap "Accept" inside the App, when you create an account, when you make a purchase, or simply by continuing to use the Service. If you do not accept these Terms, do not install or use the App. Together with our Privacy Policy, these Terms constitute the entire agreement between you and us.

2. Eligibility

You may use the Service only if all of the following are true:

• You are at least 13 years of age, or the higher age of digital consent in your jurisdiction (which may be 14, 15, or 16 in some European Union member states).
• If you are below the age of majority in your country, you use the Service only with the supervision and verifiable consent of a parent or legal guardian.
• You have the legal capacity to enter into this agreement.
• Your use of the Service is not prohibited by the laws of the country in which you reside.

If you are using the App on behalf of a child or a person who lacks legal capacity (for example, as a parent or caregiver tracking your child's hydrocephalus condition), you represent and warrant that you have the legal authority to do so and that you accept these Terms on their behalf.

3. Your account

Most features of the App require an account. You may create an account using:

• email and a password you choose,
• Sign in with Google, or
• Sign in with Apple.

You agree to provide accurate information when creating your account and to keep that information current. You are solely responsible for safeguarding your credentials and for all activity that occurs under your account, whether or not you authorized it. You must notify us promptly at [email protected] if you suspect any unauthorized access.

You may not share one account between multiple individuals. Each user must have a separate account.

4. License to use the App

Subject to your compliance with these Terms and your payment of any applicable subscription fees, we grant you a limited, personal, non-exclusive, non-transferable, non-sublicensable, revocable licence to install and use the App on a mobile device that you own or control, solely for your own personal, non-commercial purposes.

This licence does not transfer ownership of any intellectual property to you. We and our licensors retain all right, title, and interest in and to the Service, including all related software, designs, brand elements, clinical rule logic, decision-support algorithms, content, documentation, and translations.

5. Acceptable use

You agree that you will not, and will not allow any third party to:

• copy, modify, distribute, sell, lease, sublicense, or create derivative works of the Service or any part of it;
• reverse-engineer, decompile, disassemble, or otherwise attempt to derive source code, algorithms, or trade secrets from the Service, except to the extent expressly permitted by mandatory applicable law;
• remove, alter, or obscure any copyright, trademark, or other proprietary notice;
• circumvent, disable, or otherwise interfere with security-related features of the Service, including features that prevent or restrict the use or copying of content;
• use the Service to develop a competing product or to benchmark against a competing product;
• scrape, crawl, or use automated means (including bots, robots, or scripts) to access the Service or to extract data;
• upload or transmit any content that is unlawful, infringing, defamatory, obscene, or that contains malware;
• use the Service in any way that could damage, disable, overburden, or impair our servers or networks, or that could interfere with any other party's use and enjoyment;
• use the Service to impersonate a licensed clinician, to dispense medical advice to third parties, to operate a clinical practice, or for any purpose in which the App's output is treated as a medical diagnosis or as a substitute for a regulated medical device;
• use the Service in connection with any clinical trial, regulatory submission, insurance claim, legal proceeding, or other context where regulated medical-device output is required, without first obtaining our written consent;
• attempt to redeem, resell, transfer, generate, brute-force, or otherwise abuse promo codes; or
• use the Service in violation of any applicable law or regulation, including the laws of the country in which you reside or in which the Service is accessed.

We reserve the right, but are not obliged, to monitor compliance with this section and to suspend or terminate accounts that we reasonably believe to be in breach.

6. Subscriptions, trials & billing

6.1 Plans

Most of the App's features are available free of charge. Certain "Premium" features — including the Symptom Awareness Summary (red/yellow/green informational bands), Appointment Prep PDF, Symptom History & Trend View, informational symptom-pattern explanations, and Doctor Sharing — require a paid subscription.

6.2 Free trial

We may offer a free trial of Premium (currently 14 days) for first-time subscribers. Unless you cancel before the trial ends, your subscription will automatically convert to a paid subscription at the then-current rate. You may cancel at any time during the trial through your platform store (Google Play or Apple App Store) without being charged.

6.3 Auto-renewal

Subscriptions renew automatically at the end of each billing period (monthly or yearly, depending on the plan you choose) unless you cancel before the next renewal date. You will be charged the renewal price disclosed at the time of purchase, which may change subject to section 6.6.

6.4 Payment processing

All payments are processed by the platform store on which you purchased the subscription (Google Play, Apple App Store, or, where applicable, our partner RevenueCat). We do not receive or store your full payment-card details. The terms of those platforms apply in addition to these Terms.

6.5 Refunds

Refund requests are handled by the platform store in accordance with its policies. We do not offer direct refunds outside of those channels except where required by applicable mandatory consumer-protection law. If you are an EU consumer, your statutory right of withdrawal for digital content begins at the time of purchase and may be waived when you start using Premium features inside the App.

6.6 Price changes

We may change subscription pricing at any time. We will give existing subscribers at least 30 days' notice in-app or by email before any price change takes effect for a renewal. If you do not wish to accept a new price, you may cancel before the next renewal.

7. Promo codes

From time to time, we or our partner organizations (such as patient associations and clinics) may distribute promo codes that unlock Premium for a defined period (typically 12 months per code). Promo codes are subject to the following rules:

• each code is single-use and validated server-side by Cloud Firestore;
• stacking multiple codes on the same account is allowed but capped (currently to a 90-day grant cap to prevent abuse);
• codes are non-transferable and have no cash value;
• resale of codes to third parties for profit is permitted only by partner organizations that have purchased codes under our B2B program (see For Organizations);
• codes may not be obtained through fraud, scraping, brute force, automated guessing, or any other unauthorized means;
• we reserve the right to invalidate any code that we reasonably believe was obtained or distributed in violation of these Terms, and to terminate any account associated with such activity without refund;
• once redeemed, codes cannot be reversed, refunded, transferred to another account, or extended.

8. Your data & content

Any data you enter into the App — including your medical profile, symptom logs, imaging files, doctor records, notes, and any files you attach ("User Content") — belongs to you. Most User Content is stored locally on your device and never transmitted to our servers, as described in the Privacy Policy.

By using the App, you grant us a limited, non-exclusive, royalty-free licence to process User Content solely as necessary to operate the App's features for you (for example, to compute risk scores, generate PDF reports, or send a Doctor Sharing snapshot you initiate). This licence terminates automatically when you delete the relevant data or your account.

You are solely responsible for the User Content you enter and for the consequences of sharing it with any third party (such as a clinician). You represent and warrant that you have the right to enter and share that content.

9. Intellectual property

The Service — including its software, source code, design, user interface, illustrations, icons, copy, translations, clinical rule logic, decision-support algorithms, brand names, logos, and any related materials — is the exclusive property of T3D2 Software Solutions and is protected by copyright, trademark, trade-secret, and other intellectual-property laws of Serbia and other jurisdictions.

"ShuntCare" and the ShuntCare logo are trademarks of T3D2 Software Solutions. You may not use any of our trademarks without our prior written permission, except for fair, descriptive references (for example, "I use ShuntCare").

Third-party trademarks mentioned in the Service — including, where applicable, references to NIH, Google, Apple, Firebase, RevenueCat, and OpenStreetMap — are the property of their respective owners and are used for identification only.

10. Third-party services & stores

The App relies on third-party services to function. These include, without limitation, Google Firebase (Authentication, Cloud Firestore, Analytics), RevenueCat, Google Play Billing, Apple App Store, OpenStreetMap (Overpass and Nominatim), Cloudflare, and FormSubmit. Your use of those services is subject to their own terms and privacy policies, in addition to these Terms.

We are not responsible for the availability, accuracy, content, or behaviour of third-party services. Disruption, suspension, or discontinuation of any third-party service may affect the App's functionality.

If you obtain the App from Google Play or the Apple App Store, those stores' standard end-user licence agreements (the Google Play Terms of Service or the Apple Media Services Terms, including the "Licensed Application End User License Agreement") apply to your use of the App. To the extent any provision of those store terms conflicts with these Terms, the store terms prevail with respect to that store's relationship with you.

11. Medical disclaimer

The information presented in the App — including but not limited to red/yellow/green informational bands, symptom-pattern summaries, the "urgent triad" description, fever-threshold information, NPH-triad explanations, paediatric symptom-combination descriptions, medication-adherence summaries, and the appointment-prep PDF — is provided for informational and self-organisation purposes only. It is derived from publicly available patient-education literature on hydrocephalus, including NIH NBK459351 and other open-access materials. It is not personalised medical advice, not a clinical assessment, and not a substitute for the judgment of your treating clinician.

You must always consult a qualified neurosurgeon, paediatrician, or other licensed clinician for any medical decision. In any suspected emergency — including the urgent triad of headache + vomiting + vision change, severe fever with headache, sudden lethargy, seizure, sudden behaviour change, or any change you find alarming — contact your neurosurgical team or your local emergency number immediately. Do not rely on the App to determine whether an emergency exists, to time a call to your clinician, or to choose between escalation paths.

You expressly agree that:

• any decision you take, or refrain from taking, based on the App's output is your sole responsibility;
• the absence of an informational band, summary, or notification in the App does not mean that no medical event is occurring;
• the presence of an informational band, summary, or notification in the App does not constitute a diagnosis;
• informational bands are computed solely from data you have manually entered, and any errors, omissions, or delays in entry propagate to the output;
• translations and localised content may contain inaccuracies and must not be relied on without independent clinical verification;
• device failure, OS-level notification suppression, third-party service outage, or other technical conditions may prevent informational output even when symptoms are present;
• ancillary features (Hospital Finder, Appointment Prep PDF, Reminders, Doctor Sharing) are convenience features only and must not be relied on for time-critical, life-critical, or regulatory purposes.

11a. No endorsement / affiliation

ShuntCare and T3D2 Software Solutions are not endorsed by, affiliated with, sponsored by, or approved by any medical association, professional body, patient organisation, hospital, clinic, regulatory authority, or government agency. References to organisations such as the NIH, or any other organisation are made solely as citations to publicly available patient-education or academic literature, on a fair-citation basis, and do not imply association, partnership, accreditation, or co-marketing. All third-party trademarks remain the property of their respective owners. Where a formal partnership exists, it will be disclosed in writing on a dedicated partner page; in the absence of such written disclosure, no partnership should be inferred.

11b. Use of the App for children

When the App is used to track a child's shunt-related symptoms — for example, by a parent or legal guardian on the child's behalf — the responsible adult is solely accountable for supervising all data entry, interpreting any output in light of the child's actual condition, escalating to the child's clinical team where appropriate, and obtaining medical care without delay when concerned. The App does not substitute for paediatric clinical advice. Paediatric thresholds shown in the App (for example, lower fever cut-offs) are summaries of publicly available patient-education materials and may not reflect your specific child's clinical situation. Always defer to the child's paediatric neurosurgical or paediatric team.

11c. Translations and localised content

The App is offered in multiple languages for the convenience of users in different markets. Translations may contain inaccuracies, omissions, or out-of-date information. The English version is the canonical version of both these Terms and the in-app content; in case of any discrepancy with a translation, the English version prevails. Medical terminology in particular may not translate one-to-one between languages. In any clinical conversation, you should confirm critical information with your treating clinician in the language of clinical care, regardless of how the App displays it in your chosen interface language.

12. Disclaimer of warranties

To the maximum extent permitted by applicable law, the Service is provided "as is" and "as available", with all faults and without warranty of any kind, whether express, implied, statutory, or otherwise. We specifically disclaim all warranties of merchantability, fitness for a particular purpose, title, non-infringement, accuracy, and uninterrupted or error-free operation.

Without limiting the foregoing, we do not warrant that:

• the Service will meet your requirements or expectations;
• the App's warning rules will detect, predict, or prevent any specific medical event;
• the content of the App, including translations, will be free from inaccuracies, omissions, or outdated information;
• the App will be compatible with any particular device, operating system version, or accessibility configuration;
• your data will be backed up, recoverable, or preserved against device failure, OS resets, accidental deletion, or third-party service outages; or
• third-party services on which the Service depends will be uninterrupted, secure, or free of defects.

13. Limitation of liability

To the maximum extent permitted by applicable law:

1. In no event shall T3D2 Software Solutions, its owner, employees, contractors, partners, or licensors be liable for any indirect, incidental, special, consequential, punitive, or exemplary damages, including without limitation damages for loss of profits, loss of revenue, loss of business, loss of goodwill, loss of data, medical injury, emotional distress, or any other intangible loss, arising out of or in connection with your access to or use of, or inability to access or use, the Service or any content therein.
2. In no event shall our aggregate liability to you for all claims arising out of or relating to the Service or these Terms exceed the greater of (a) the total amount you have paid to us for the Service in the twelve (12) months preceding the event giving rise to the claim, or (b) fifty euros (€50).
3. The limitations in this section apply whether the claim is based in contract, tort (including negligence), statute, or any other legal theory, and whether or not we have been advised of the possibility of such damages.
4. Nothing in these Terms excludes or limits any liability that cannot lawfully be excluded or limited under applicable law, including liability for death or personal injury caused by our gross negligence or wilful misconduct, fraud, or fraudulent misrepresentation. Some jurisdictions do not allow the exclusion of implied warranties or the limitation of certain damages; in those jurisdictions, the exclusions and limitations above apply only to the maximum extent permitted by law.

You acknowledge that the Service is offered at a low subscription price (or free), that the limitations of liability in this section are a material part of the bargain between us, and that we would not be able to provide the Service without these limitations.

14. Indemnification

You agree to defend, indemnify, and hold harmless T3D2 Software Solutions, its owner, employees, contractors, partners, and licensors from and against any and all claims, demands, damages, losses, liabilities, costs, and expenses (including reasonable legal fees) arising out of or in any way connected with:

• your access to or use of the Service;
• your breach of these Terms or any applicable law;
• any decision or action — medical or otherwise — that you, a family member, a caregiver, or any third party takes in reliance on the App's content;
• any User Content you upload, enter, or share, including imaging files, doctor snapshots, or shared records;
• your infringement of any third-party right, including intellectual property, privacy, or publicity rights; or
• any unauthorized access to your account caused by your failure to keep your credentials or device secure.

15. Suspension & termination

You may terminate this agreement at any time by uninstalling the App and, if you wish, requesting deletion of your account at shuntcare.com/delete_account.

We may suspend or terminate your access to all or part of the Service, with or without notice, and without liability to you, if:

• you breach these Terms or any applicable law;
• we reasonably suspect fraudulent activity, promo-code abuse, or unauthorized access associated with your account;
• we are required to do so by law, regulation, court order, or instruction of a competent authority;
• a third-party service essential to the App becomes permanently unavailable; or
• we decide to discontinue the Service in whole or in part.

The following sections survive termination of these Terms for any reason: sections 8 (Your data & content), 9 (Intellectual property), 11 (Medical disclaimer), 12 (Disclaimer of warranties), 13 (Limitation of liability), 14 (Indemnification), 18 (Governing law & disputes), and 19 (General provisions).

16. Changes to the App

We may, from time to time and in our sole discretion, add, modify, or remove features of the App; change the format or behaviour of existing features; require minimum operating-system versions; or discontinue the App entirely. We will give reasonable notice of material changes that meaningfully reduce paid functionality, except where the change is required by a third-party platform, by law, or to address a security issue.

17. Changes to these Terms

We may update these Terms from time to time to reflect changes to the Service, applicable law, or industry practice. When we make material changes, we will require you to re-accept the updated Terms on the next launch of the App, or we will give prominent notice on the website. Your continued use of the Service after a change becomes effective constitutes your acceptance of the updated Terms. If you do not accept the updated Terms, you must stop using the Service.

17a. Pre-litigation notice

Before initiating any legal proceedings against T3D2 Software Solutions, ShuntCare, or its owner in connection with these Terms, the App, or the website, you must first send a written notice to [email protected] describing the nature of the dispute, the relief sought, and your contact details, and you must allow us at least sixty (60) days from receipt of that notice to investigate and attempt to resolve the matter in good faith. This requirement does not apply (a) where prohibited by mandatory consumer-protection law, (b) to applications for injunctive or equitable relief to prevent imminent harm, or (c) to complaints to a data-protection supervisory authority. Compliance with this notice procedure is a condition precedent to bringing any non-emergency claim.

18. Governing law & disputes

These Terms and any non-contractual obligations arising out of or in connection with them are governed by and construed in accordance with the laws of the Republic of Serbia, without regard to its conflict-of-law principles. The United Nations Convention on Contracts for the International Sale of Goods is expressly excluded.

The courts of Belgrade, Republic of Serbia shall have exclusive jurisdiction to settle any dispute or claim arising out of or in connection with these Terms, the App, or the website, subject to your mandatory consumer rights to bring proceedings in the courts of your country of habitual residence under applicable EU consumer-protection rules.

If you are an EU consumer, you may also use the European Commission's Online Dispute Resolution platform at ec.europa.eu/consumers/odr. We are not obliged to participate in alternative dispute-resolution proceedings before a consumer arbitration board.

19. General provisions

19.1 Entire agreement

These Terms, together with our Privacy Policy and any pricing or order documents you agree to (such as a B2B partnership invoice), constitute the entire agreement between you and us regarding the Service and supersede all prior or contemporaneous understandings.

19.2 Severability

If any provision of these Terms is held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, that provision shall be reformed to the minimum extent necessary to make it enforceable, or, if reformation is not possible, severed; the remaining provisions shall continue in full force and effect.

19.3 No waiver

Our failure to enforce any right or provision of these Terms is not a waiver of that right or provision. Any waiver must be in writing and signed by us.

19.4 Assignment

You may not assign or transfer these Terms, by operation of law or otherwise, without our prior written consent. We may assign or transfer these Terms, in whole or in part, in connection with a merger, acquisition, reorganization, sale of assets, or by operation of law.

19.5 No agency

Nothing in these Terms creates any partnership, joint venture, employment, agency, fiduciary, or franchise relationship between you and us.

19.6 Force majeure

We are not responsible for any failure or delay in performance caused by events beyond our reasonable control, including but not limited to outages of Google Firebase, RevenueCat, OpenStreetMap, Cloudflare, Google Play, or the Apple App Store; internet or telecommunications failures; acts of government; war; civil unrest; pandemics; natural disasters; cyber-attacks; or changes in law that materially restrict our ability to operate.

19.7 Notices

We may send you notices in the App, by email to the address associated with your account, or by posting on the website. You agree that electronic notices satisfy any legal requirement for written notice. Notices to us must be sent to [email protected].

19.8 Language

These Terms are drafted in English as the canonical version. We may make translations available for convenience inside the App or on the website; in the event of any inconsistency between the English version and a translation, the English version prevails.

20. Contact

For questions about these Terms, billing, account issues, or any other matter, contact:

T3D2 Software Solutions
Attn: Damir Gojović (Owner)
Email: [email protected]
Website: https://shuntcare.com

These Terms have been drafted by the publisher and have not been formally reviewed by external legal counsel; users in regulated markets and partners considering a B2B engagement should not treat any clause as a substitute for independent legal advice. Capitalised terms used but not defined in these Terms have the meanings given to them in the Privacy Policy or, where relevant, in applicable Serbian or EU consumer-protection legislation.