Terms of Service
Last updated: 17 October 2026
These Terms of Service ("Terms") govern your use of Qstomizer ("the App" or "the Service"), a product customization app for Shopify stores operated by Big Van Studio ("we", "us"). By installing the App, subscribing to a plan or using the Service, you ("the Merchant", "you") agree to these Terms. If you do not agree, do not install or use the App.
These Terms incorporate the following policies, which form part of the agreement between you and us: Privacy Policy, Fair Use Policy, Free Support Policy, How the subscriptions work and Content License: Clipart and Images.
1. Who we are
The Service is provided by Big Van Studio, Avda. Sudamérica 15, 11407 Jerez de la Frontera (Cádiz), Spain. Contact: info@bigvanstudio.com.
2. The Service
Qstomizer lets you offer customizable products in your Shopify store. Your customers can personalize products with text, images, clipart and other design elements, and the App passes the resulting design and print files to your orders. Depending on your plan, the Service may also include optional features such as AI tools, pricing rules, discounts, automatic image generation and integrations with third-party services such as print-on-demand providers.
The Service is intended for business use by Shopify merchants. By accepting these Terms you confirm that you are using the App in the course of your business and that you have the authority to bind the business that owns the store.
The App depends on Shopify. Your use of Shopify is governed by Shopify's own terms, and we are not responsible for Shopify's services, availability or policy changes that affect the App.
3. Plans, trial and billing
Free trial: new installations include a free trial period, as shown in the App when you select a plan. When the trial ends, a paid plan is required to keep using the Service.
Billing through Shopify: all charges (subscriptions and one-time purchases such as AI credits) are billed through Shopify's billing system and appear on your Shopify invoice. We do not process or store your payment details. Prices are shown in the App before you approve any charge; taxes are applied by Shopify where applicable.
Automatic renewal: subscriptions renew automatically at the end of each billing cycle (monthly or annual) until cancelled.
Plan changes: you can upgrade or downgrade at any time from the App. Shopify prorates price differences according to its billing rules.
No refunds: all charges are final and non-refundable, including unused time on monthly or annual plans and unused AI credits, unless mandatory law provides otherwise. Cancelling or uninstalling the App stops future charges but does not refund past ones.
Price changes: we may change our prices. Changes to an active subscription take effect only once you approve the new charge in Shopify.
Plan limits: each plan has its own limits and features, as described in the App and on our pricing page. Features labelled "unlimited" are subject to the Fair Use Policy.
4. Cancellation, downgrades and uninstallation
Downgrade or cancellation from the App: if your new plan has lower limits, or if you cancel your subscription, the templates that exceed your plan are frozen (not deleted) and stop working in your store. They can be reactivated by subscribing to a plan that includes them.
Uninstallation: uninstalling the App from Shopify cancels your subscription. Your data is deleted as described in the Privacy Policy and cannot be recovered afterwards. Download any print files or designs you need before uninstalling.
5. Your content and your customers' content
"Merchant Content" means the templates, product images, masks, clipart, fonts, texts, settings and other material you upload or configure in the App. "Customer Content" means the images, texts, AI prompts and designs that your customers create or upload while personalizing a product.
Ownership: you (or your customers) keep all rights to Merchant Content and Customer Content. We do not claim any ownership of it.
Permission to operate the Service: you grant us a non-exclusive, worldwide, royalty-free license to host, store, copy, process, resize, render and display Merchant Content and Customer Content solely to provide, maintain and support the Service. This license ends when the content is deleted from our systems.
Your responsibility: you are solely responsible for Merchant Content and for the products you sell, including products designed by your customers. You must hold the necessary rights to the Merchant Content and you are responsible for reviewing customer designs before producing or shipping them, and for refusing orders that infringe third-party rights or break the law.
Retention of customer uploads: customer uploads are kept for a limited time, as described in the Fair Use Policy and the Privacy Policy. Download the files you need for production in time. We are not a backup or archiving service.
Removal: we may remove or disable any content that we reasonably believe infringes third-party rights or breaches these Terms, including after receiving a complaint from a rights holder.
6. Acceptable use
You must not use the Service, or allow your customers to use it, to:
Create, upload or sell content that is illegal, infringes intellectual property or privacy rights, or is defamatory, hateful, violent or sexually exploits minors.
Upload malware or attempt to gain unauthorized access to the Service, other merchants' data or our infrastructure.
Scrape, copy, reverse engineer or resell the App, its libraries or its API, except as allowed by mandatory law.
Use the Service in a way that overloads or disrupts it, as described in the Fair Use Policy.
7. Included clipart, images and fonts
The clipart and image libraries included in the App may be used on the products you sell under the conditions of the Content License. Fonts offered in the App come from public font libraries, such as Google Fonts, and are subject to their own licenses.
8. AI features
Some features (for example, text-to-image or background removal) are powered by third-party artificial intelligence providers. When these features are used, the relevant prompt or image is sent to the provider to generate the result. AI output is generated automatically: it may be inaccurate or unexpected, may resemble existing works, and is not guaranteed to be unique or free of third-party rights. You are responsible for reviewing AI-generated content before using or producing it. AI features may be subject to credit limits and may change if a provider changes or discontinues its service.
9. Third-party services and integrations
The App can connect to third-party services (for example, print-on-demand providers such as Printful). When you connect one, you authorize us to exchange the necessary data with it, including order and shipping data needed to fulfil your orders. Your relationship with that provider is governed by its own terms and prices, and we are not responsible for its services, products, delays or errors.
10. Print files and production
We do not print or ship products. The App generates design previews and print files based on the templates and settings you configure. Colors, sizes and quality on screen may differ from the printed result. Before production, you are responsible for checking that templates, print areas and dimensions are configured correctly and that each print file is suitable for your printing process. We are not liable for misprints, production costs, returns or reprints.
11. Our intellectual property
The App, its software, design, documentation, templates and libraries are owned by Big Van Studio or its licensors. While your subscription is active, we grant you a limited, non-exclusive, non-transferable license to use the Service in your Shopify store under these Terms. No other rights are granted.
12. Availability and changes to the Service
We work to keep the Service available and running smoothly, but we do not guarantee that it will be uninterrupted or error-free. Maintenance, updates and incidents at our providers (including Shopify and our hosting providers) may cause temporary interruptions. We may add, change or remove features over time, for example to keep up with changes in Shopify or third-party services.
13. Disclaimer of warranties
To the extent permitted by law, the Service is provided "as is" and "as available", without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose and non-infringement. We do not warrant that the Service will meet your requirements or be compatible with every Shopify theme or third-party app.
14. Limitation of liability
To the extent permitted by law:
We are not liable for indirect or consequential damages, including lost profits, lost sales, loss of data, loss of goodwill, production costs or business interruption.
Our total liability for any claim arising from the Service or these Terms is limited to the amount you paid us for the Service in the 12 months before the event that gave rise to the claim.
These limitations do not apply to liability that cannot be limited by law, such as liability for wilful misconduct or gross negligence.
15. Indemnification
You agree to indemnify and hold Big Van Studio harmless from any third-party claims, damages and reasonable costs (including legal fees) arising from Merchant Content, Customer Content, the products you sell, or your breach of these Terms or of applicable law.
16. Suspension and termination
You can stop using the Service at any time by uninstalling the App. We may suspend or terminate your access, with prior notice where reasonably possible, if you seriously or repeatedly breach these Terms, if required by law or by Shopify, or if your use puts the Service or other merchants at risk. We may also discontinue the Service entirely with at least 30 days' notice. Sections 5, 10, 11, 13, 14, 15 and 19 survive termination.
17. Data protection
Our Privacy Policy explains how we process personal data. For the personal data of your customers, you are the controller and we act as your processor: we process that data only on your behalf and to provide the Service. You are responsible for informing your customers, in your store's privacy policy, that you use third-party apps to provide product customization.
18. Changes to these Terms
We may update these Terms from time to time. The "Last updated" date at the top shows when they were last changed. For material changes, we will give you reasonable notice by email or in the App before they take effect. If you continue to use the Service after the changes take effect, you accept the updated Terms.
19. Governing law and jurisdiction
These Terms are governed by the laws of Spain. Any dispute will be submitted to the courts of Jerez de la Frontera (Cádiz), Spain, unless mandatory law provides otherwise.
20. General
If any provision of these Terms is found invalid, the remaining provisions remain in effect. Our failure to enforce a provision is not a waiver of it. You may not transfer your rights under these Terms without our consent. These Terms, together with the policies listed above, are the entire agreement between you and us regarding the Service. These Terms are written in English; if they are translated, the English version prevails.
21. Contact
For any question about these Terms, contact us at info@bigvanstudio.com or through our support page.
