Refund Policy

Effective date: 28 October 2026

This policy covers digital products (such as 3D models) bought from the Perfusion app or the shop at https://shop.perfusionapp.com. Free features and free downloads carry no charge and so no refund.

1. Digital products

3D models are digital files delivered immediately after payment. Because they can be copied once delivered, all sales are final once the file has been downloaded or accessed, except as set out below or where the law gives you a right to a refund.

2. When you are eligible for a refund

You can request a refund within 7 days of purchase if:

• the file is corrupt, will not open, or is materially different from its description or preview;
• you were charged more than once for the same item, or a payment was made without your authorisation;
• the product could not be delivered to you for a technical reason we cannot fix; or
• the law in your country requires a refund.

3. When we cannot refund

• You changed your mind, or bought the wrong item, after downloading or accessing the file.
• The model does not suit your software or hardware, where the listing stated the format and requirements.
• You have breached the licence terms, for example by sharing or reselling the file.
• The request is made after 7 days, unless the law requires otherwise.

4. Your statutory rights

If you live in the EU, UK or another place with a withdrawal right for digital content, you agree at checkout that delivery begins immediately and you lose your 14-day right of withdrawal once the download starts. This does not affect your legal rights for faulty digital content, which always remain. Consumers in other jurisdictions keep any rights that cannot be waived under local law.

5. Purchases through Apple or Google

If you paid via the Apple App Store or Google Play, refunds are handled by Apple or Google under their own policies. Request them at reportaproblem.apple.com or in Google Play under your order history. We will cooperate with any refund they approve and may remove access to the product.

6. How to ask for a refund

Email support@sigmus.in with the subject "Refund request" and include your account email, order reference, the product name and the reason (add a screenshot if the file is faulty). We reply within 3 business days. Approved refunds go back to the original payment method within 5 to 10 business days, depending on your bank. If we can fix a faulty file by replacing it, we may offer that first.

7. Cancellations and chargebacks

Orders cannot be cancelled after delivery. Please contact us before opening a chargeback so we can resolve the issue quickly. Access to a refunded product is withdrawn.