Privacy Policy
Checkout King · Last updated 25 August 2026
Checkout King is a Shopify app that lets a merchant control what customers see at checkout — which delivery and payment options appear, what they are called, whether an order can be placed, and what discounts apply.
This page describes what the app reads, what it keeps, and for how long. It is written to be checkable rather than reassuring: where the answer is "nothing is stored", that is because of how the app is built, and the relevant behaviour is named so a merchant can ask about it.
The short version
The rules run on Shopify's own infrastructure, not on our servers. When a customer reaches checkout, no request is made to us and no customer data leaves Shopify. Our servers see customer data in one situation only: after an order is placed, to count how often each rule matched.
In that one case the order is read, the counting is done, and the order is discarded. What remains is a number per rule per day.
Customer data we read
Only what a merchant's own rules can be based on:
- Order and cart totals, line items, quantities, weights, products
- Shipping address — country, province or state, postcode, and street lines. Rules can be written against any of these.
- Email address — used only to read the part after the
@, so a merchant can write a rule about a domain. The address itself is not stored. - Whether the buyer is a guest, has an account, or is a business, and their previous order count and total spend where Shopify provides them
We never request a customer's name or phone number. Neither appears in any part of the app.
What we store, and for how long
- Rule match counts. A count per rule per day. No order number, no customer identifier, no address, no email. Nothing in this table can be traced to a person. Kept while the app is installed.
- Order data: not stored. The order notification is held only until the counting finishes, then deleted. A scheduled job deletes anything missed after seven days.
- Merchant account data. Store domain, plan, permissions granted, and the rules the merchant wrote. Deleted when the app is uninstalled.
- Support messages. If a merchant writes to us, we keep the message, their reply address, and their store and plan, so a reply does not begin by asking which store it is about.
- Erasure records. When Shopify asks us to delete a customer's data, we record that we did. That record holds Shopify's own anonymous customer reference and nothing else — no email, no phone, no address.
What we never do
- We do not sell personal data, and we do not share it for advertising.
- We do not track customers across sites, and we set no tracking cookies.
- We do not email a merchant's customers.
- We do not use customer data to train machine learning models.
Companies that process data for us
- Render — hosting, database and queue, in the United States. Encrypted in transit and at rest, including backups.
- Resend — sends a support message to us when a merchant writes one. It carries only what the merchant typed and their store and plan.
Shopify itself is not on this list because Shopify is the source of the data, not a processor acting for us.
Customer data requests
Shopify sends us the required requests for customer data access, customer deletion, and store deletion, and we act on all three.
Because the only customer-derived thing we keep is an untraceable daily count, there is normally nothing to return or erase for an individual customer — we confirm that rather than pretending to search. A store deletion request removes everything belonging to that store.
A customer should contact the store they bought from. The merchant can raise the request with Shopify, which passes it to us.
Security
- All traffic is encrypted in transit; the database is encrypted at rest.
- Every request from Shopify is signature-verified before it is accepted.
- Application logs automatically hide access tokens, email addresses, phone numbers and addresses, however deeply nested.
Changes
If what we process changes, this page changes with it and the date at the top moves. Material changes are told to merchants in the app.