Kartel privacy policy

Last updated 25 October 2026. Questions: support@shreyaslabs.com.

Kartel ("the app", "we") is a Shopify app that runs discounts for Shopify stores: offers by cart value, bundles, quantity breaks, free gifts and similar. It is provided by Shreyas Labs. This policy explains what information Kartel collects when a merchant installs it, why, and what we do with it.

Who this covers

What Kartel collects and why

From the merchant's store, through Shopify's APIs:

WhatWhyKept
The store's domain, plan with Kartel, and app login sessionTo run the app and know which features the store's plan includesWhile installed, then deleted
The offers the merchant creates (names, rules, dates, messages)To apply themWhile installed
Products, collections, tags and prices, read when neededTo decide which items an offer countsNot stored; cached for at most a minute
Discount records Kartel creates in ShopifyTo keep Shopify's discounts in step with the offersWhile installed
Order IDs and dates of orders that got a Kartel discountTo count usage against the store's plan and bill it through ShopifyWhile installed, then deleted
Keys the merchant creates to connect a mobile app or headless store (name and dates; the secret isn't stored)To let that storefront show the same offersUntil the merchant turns them off or uninstalls

About shoppers, only to apply discounts:

WhatWhyKept
Customer tags and number of past orders, read from Shopify when a signed-in shopper's cart is checkedOffers limited to some customers, such as "first order only" or "customers tagged VIP"Not stored; cached for at most a minute
Per-customer use counts, when an offer limits how often a customer can use itTo enforce the limitStored in the merchant's Shopify store (customer metafields), deleted on request
The cart's contents and Kartel's own cart notes (which offer applied, a free gift choice)To show progress and add free giftsNot stored by Kartel; they stay in the cart and become notes on the order in Shopify

Kartel does not collect or store shoppers' names, email addresses, phone numbers, addresses or payment details, and never uses customer data for marketing, profiling, export or anything other than applying the merchant's discounts.

Where data is processed

On servers in the United States. Shopify processes store and order data under its own privacy policy.

Sharing

We don't sell or rent personal information. We share it only with:

Shoppers' rights and requests

Shoppers make privacy requests to the merchant. When a merchant passes on a request through Shopify:

We complete requests within 30 days.

When a merchant uninstalls Kartel

Kartel stops running the store's offers at once. 48 hours after uninstall, Shopify asks us to erase the store's data, and we delete everything Kartel holds for that store. A merchant can ask for deletion sooner at support@shreyaslabs.com.

Security

Data travels encrypted (HTTPS). Access to the database is limited to the people who run Kartel. Connection keys for apps are derived from a server secret and never stored.

Changes

We'll update this page when Kartel's handling of data changes and note the date above.

Contact

Shreyas Labs, support@shreyaslabs.com.

Kartel terms of service