Terms of Service

Effective date: 27 October 2026

These Terms of Service ("Terms") are a binding agreement between you and SIGMUS TECHNOLOGIES LLP ("we", "us") governing your use of the Perfusion app, https://perfusionapp.com and https://shop.perfusionapp.com (the "Services"). If you do not agree, do not use the Services.

1. Eligibility and accounts

You must be at least 18 years old and able to form a binding contract. You must give accurate information, verify your email address, and keep your password confidential. You are responsible for all activity under your account. Tell us immediately about unauthorised use.

2. Professional use only

Perfusion provides reference tools, calculators, datasheets, educational content and quizzes for perfusion and healthcare professionals and students. It does not provide medical advice, diagnosis or treatment and must not replace professional judgement, institutional protocols or manufacturer instructions. Read our Medical & AI Disclaimer.

3. Your content

You keep ownership of content you submit. You give us a worldwide, non-exclusive, royalty-free licence to host, process and display it as needed to run the Services for you. You promise that you have the rights to your content, that it is lawful, and that it does not contain identifiable patient information. We may remove content that breaks these Terms or the law.

4. Acceptable use

You must not: break any law; upload malware; scrape, reverse engineer or overload the Services; attempt to access other users' data; share your account; misuse the AI features to generate harmful, deceptive or unlawful content; post spam, hateful, harassing, sexual or misleading material; infringe intellectual property; or enter patient-identifying data. See our Community Guidelines.

5. Digital products and 3D models

3D models and similar items sold through our shop or app are licensed, not sold. Unless the listing says otherwise you receive a personal, non-exclusive, non-transferable licence for educational and personal use. You may not resell, redistribute, sublicense or publish the files. Refunds are covered by the Refund Policy. Prices are shown in the currency displayed at checkout and may include taxes. Purchases made through Apple or Google are also subject to their terms.

6. Sponsored content

The Services may show sponsored content, which is labelled where required. We do not endorse sponsors, and your dealings with them are solely with them.

7. Intellectual property

The Services, including software, text, graphics, quizzes, logos and the Perfusion name, belong to us or our licensors and are protected by law. We grant you a limited, revocable, non-transferable licence to use the app for your own professional or educational purposes.

8. Third-party services

The Services link to or rely on third parties (for example Google, Apple, OpenAI, payment providers). Their terms and privacy policies apply to your use of them.

9. Suspension and termination

You may stop using the Services and delete your account at any time in the app or at https://perfusionapp.com/delete-account. We may suspend or terminate access if you breach these Terms, if required by law, or to protect users or the Services. Sections that by nature should survive termination will survive.

10. Disclaimers

The Services are provided "as is" and "as available". To the fullest extent permitted by law we disclaim all warranties, express or implied, including accuracy, fitness for a particular purpose and non-infringement. We do not warrant that content is complete, current or error free, or that the Services will be uninterrupted. Nothing here limits any consumer rights that cannot be excluded by law.

11. Limitation of liability

To the fullest extent permitted by law, we are not liable for indirect, incidental, special, consequential or punitive damages, loss of data, profits or goodwill, or for any clinical decision or patient outcome based on the Services. Our total liability for any claim is limited to the greater of the amount you paid us in the 12 months before the claim or INR 5,000. Nothing excludes liability for death or personal injury caused by negligence, fraud, or anything that cannot be excluded by law.

12. Indemnity

You agree to indemnify us against claims, losses and costs arising from your content, your breach of these Terms or your misuse of the Services, to the extent permitted by law.

13. Governing law and disputes

These Terms are governed by the laws of India. The courts at Malappuram, Kerala have exclusive jurisdiction, except that where mandatory consumer law in your country gives you the right to bring proceedings in your home courts, that right is not affected. We encourage you to contact us first to resolve disputes informally.

14. Apple and Google

If you downloaded the app from the Apple App Store or Google Play: this agreement is between you and us, not Apple or Google. Apple and Google have no obligation to provide support or maintenance, and are not responsible for claims relating to the app. Apple and its subsidiaries are third-party beneficiaries of these Terms for iOS use and may enforce them. You confirm you are not in a country subject to a government embargo and are not on a prohibited-party list.

15. Changes

We may update these Terms. We will give notice of material changes in the app or by email. Continuing to use the Services after the effective date means you accept the new Terms. If you do not, delete your account.

16. Contact

SIGMUS TECHNOLOGIES LLP, 1st Floor, Sahara Center Building, Angadippuram, Perinthalmanna, Kerala, India 679321. Email: contact@perfusionapp.com.