Terms of service

The agreement between merchants and MixMaxer.

These terms govern the use of the MixMaxer app for Shopify (“the Service”) provided by HighTonic, a sole proprietorship (eenmanszaak) registered in the Netherlands, Chamber of Commerce (KvK) no. 95020071, Eindhoven (“we”). By installing the app you agree to them. Last updated September 10, 2026.

1. The service

MixMaxer lets Shopify merchants create bundle, volume, gift and upsell offers, renders them in the storefront through Shopify theme app extensions and applies the discounts through Shopify Functions. Features may change over time; material removals are announced in the app at least 30 days in advance.

2. Accounts and eligibility

You must have a Shopify store and the authority to install apps on it. You are responsible for the offers you configure, including their legality in your markets (for example pricing, promotion and consumer-protection rules).

3. Plans, billing and trials

Paid plans are billed through Shopify's billing system on your Shopify invoice, monthly in advance, at the price shown in the app at the time of subscription. The Growth and Pro plans include a 14-day free trial once per store. Upgrades and switches between paid plans apply immediately. You can downgrade or cancel at any time from the app; the change takes effect immediately and Shopify credits the unused part of the current billing period to your Shopify account. Plans limit only the number of active offers, never your orders or revenue. If your store has more active offers than its plan allows, you are notified in the app and by email and have 7 days to upgrade or pause offers before the offers beyond the limit are paused; they resume automatically after an upgrade. Development stores have all features unlocked and are only issued test charges. We never charge a percentage of your sales.

4. Acceptable use

You may not use the Service to run deceptive promotions (for example fake reference prices), to circumvent Shopify's policies, or to interfere with the Service's operation. We may suspend stores that do.

5. Your data

How we handle data is described in the Privacy Policy, which forms part of these terms. You keep all rights to your store data; you grant us the licence needed to operate the Service for you.

6. Availability and support

Offers, discounts and storefront widgets are executed by Shopify and keep working during outages of our own servers; the admin panel and analytics may be temporarily unavailable. We aim for 99.5% monthly availability of the admin panel but do not guarantee it. Support is provided by email on business days.

7. Disclaimer and limitation of liability

The Service is provided “as is”. To the extent permitted by law we exclude implied warranties and are not liable for indirect or consequential losses, lost profits or lost sales. Our total liability for any claim is limited to the fees you paid us in the 12 months before the claim. Nothing in these terms limits liability that cannot be limited by law.

8. Termination

Uninstalling the app ends the agreement. We may terminate for breach of these terms with notice by email. Section 5 (data deletion after uninstall) survives termination.

9. Changes to these terms

We may update these terms; the date above changes and material changes are announced in the app. Continued use after the change means acceptance.

10. Governing law

These terms are governed by the laws of the Netherlands, without regard to conflict-of-law rules. Disputes are brought before the competent court in the Netherlands (district of Oost-Brabant), unless mandatory law gives you the right to another court.

Contact

HighTonic, a sole proprietorship (eenmanszaak) registered in the Netherlands, Chamber of Commerce (KvK) no. 95020071, Eindhoven · support@mixmaxer.com