Legal

Terms of Service

The terms for installing and using CartRules on your Shopify store — plans, acceptable use, and what happens if either of us cancels.

Effective September 8, 2026 7 sections
01

Acceptance

Installing CartRules from the Shopify App Store means you agree to these terms.

These terms are between you (the merchant installing the app) and MPC Trades. If you don't agree, don't install the app, or uninstall it from your Shopify admin at any time. See our Privacy Policy for how we handle data.

02

The service

CartRules enforces two kinds of purchase rules you configure yourself.

  • Blocking discount codes on products, collections, or tags you choose
  • Capping the maximum quantity of a product a customer can buy in one order
  • Enforcement runs automatically at checkout via a Shopify Function; storefront notices via an optional theme app block you add yourself

You're responsible for the rules you create and the messages shown to your customers — we don't review or approve individual rule configurations.

03

Plans & billing

Free, Growth ($4.99/mo), and Pro ($9.99/mo) — billed through Shopify, never by us directly.

  • All charges are processed through the Shopify Billing API, on your normal Shopify invoice
  • You can upgrade, downgrade, or cancel your plan at any time from the app's Plan & billing page — no reinstall or support ticket required
  • The Free plan caps active rules at 3; Growth and Pro remove that cap and add the features listed on the pricing page
  • We don't offer refunds for partial billing periods, except where required by law or at our discretion
04

Acceptable use

Use CartRules to run legitimate purchase rules on products you're authorized to sell.

  • Don't use the app to mislead customers — messages shown must reflect real, factual rule conditions
  • Don't attempt to circumvent Shopify's own platform policies through rule configuration
  • Don't attempt to reverse-engineer, resell, or white-label the app without our written permission
05

Availability & liability

CartRules is provided as-is. We work to keep it reliable, but can't guarantee zero downtime.

To the maximum extent permitted by law, MPC Trades isn't liable for indirect, incidental, or consequential damages arising from your use of CartRules — including lost sales from a misconfigured rule, or downtime outside our reasonable control (including Shopify platform outages). Nothing here limits liability where the law doesn't allow it to be limited.

06

Cancellation

Uninstall any time, directly from your Shopify admin.

Uninstalling stops billing at your next cycle and deletes your stored session immediately. Your rules and settings remain in your store's own Shopify data (metaobjects/metafields) — remove them yourself if you want them gone too. See Privacy Policy §6 for details.

07

Changes & contact

We'll update the date at the top of this page whenever these terms change materially.

Questions about these terms

Email team@mpctrades.com — same address the app's Help & support page uses.

Email us →