zerqithEffective date: October, 2026
This policy explains how Zerqith.com ("we", "us") handles personal information in connection with Mezurawise Tile (the "App"), a Shopify app that lets merchants add a tile calculator to their online store. It applies to merchants who install the App, their staff, and shoppers who use the calculator on a merchant's store.
Our website privacy policy covers our website, documentation and general support. This policy is specific to the App and is complete on its own for App-related processing.
Questions or requests: [email protected]
1. Who is responsible for what
Merchants decide how their store is run and what is shown to shoppers. For information about a merchant's customers and shoppers, the merchant is the controller (or "business"), and we act only as the merchant's service provider (or "processor").
We are the controller (or "business") for information we use to operate the App itself: merchant and staff account details, installation and subscription records, support, and security.
2. Information we handle
Merchant and staff information
When a merchant installs or uses the App, Shopify provides us with information needed to run the App for that store, such as:
- the store's Shopify domain and identifiers;
- the name, email address, locale and account role of staff users who open the App; and
- installation status and the permissions granted to the App.
Merchant-provided configuration
We handle the settings and content a merchant creates in the App, such as tile and product details, calculator options and presets. This content describes products and store preferences. Please do not enter personal information about individuals into these fields.
Subscription information
Paid plans are billed through Shopify. We receive the plan selected and subscription status so we can provide the correct features. We do not receive or store payment-card numbers.
Support communications
If you contact us, we receive your contact details, your message and any information you choose to share. Please do not send passwords, access credentials, payment details or unrelated personal information.
Technical and security information
We may keep operational records such as request metadata, IP addresses, timestamps, error information and security events needed to run, secure and troubleshoot the App.
3. Shoppers and the calculator
The calculator runs in the shopper's browser on the merchant's store. Measurements and other values a shopper enters are used on the shopper's device to show the calculation result. We do not receive, store or have access to these entries. The calculator does not use cookies or browser storage and does not include advertising or tracking tools.
The merchant's store, Shopify and any other tools the merchant has installed collect information under their own practices, which we do not control. Merchants are responsible for giving their shoppers any notices required for their store.
4. Information we do not collect
The App does not request access to customer or order data, and we do not maintain a database of a merchant's customers or orders. The App requests permission to read and update product information only, so that merchants can set up and manage their calculators.
5. How we use information
We use information to:
- provide, maintain and improve the App and its features;
- authenticate users and apply the correct permissions and plan;
- save and apply the merchant's settings;
- administer subscriptions;
- respond to support requests and communicate about the App;
- diagnose problems and keep the App secure, and prevent fraud and abuse; and
- comply with legal obligations and enforce our terms.
We do not sell personal information, share it for cross-context behavioral advertising, or use it to build advertising profiles.
6. Who receives information
We share information only as needed to operate the App, with:
- Shopify, the platform through which the App is installed and billed;
- service providers that help us with hosting, infrastructure, security, communications and support, who may process information only on our instructions and under confidentiality and security obligations;
- professional advisers, and authorities or other parties where required by law or necessary to protect rights, safety or security; and
- a successor in a merger, acquisition, financing or similar transaction, subject to appropriate protections.
7. Retention and deletion
We keep information while the App is installed and for as long as needed to provide it, resolve disputes, meet legal obligations and protect the service.
Important: Treat uninstalling the app as permanent deletion of your App data. Your records may be permanently deleted, and recovery is not guaranteed. Some data may be deleted shortly after uninstalling, while the remaining data is deleted when Shopify sends us its data erasure request, which typically arrives about 48 hours after uninstalling. Do not rely on any delay in this process to recover your data.
- Uninstalling: when a merchant uninstalls the App, its access to the store ends.
- Reinstalling: If you reinstall the App, you should expect to start from scratch. Previously saved data or settings may occasionally remain available if the erasure process has not yet been completed, but this is not guaranteed.
- Deletion: following uninstall, Shopify notifies us to erase the store's data. When we receive that request, we delete or anonymize the store's App data, except where we must keep limited records for legal, security or dispute purposes.
- Backups: deleted information may remain in backups until they expire under our regular backup cycle, after which it is removed.
- Support records and logs: kept only as long as reasonably necessary for their purpose.
8. Privacy requests from Shopify
We process Shopify's mandatory privacy requests for customer data requests, customer data erasure and shop data erasure. Because we do not hold customer or order records, we typically have no customer personal data to provide or erase. We respond to these requests based on the information we actually hold.
9. Your rights and choices
Depending on where you live, you may have the right to access, correct or delete your personal information, restrict or object to its processing, receive a portable copy, withdraw consent, and complain to a data-protection authority.
To make a request, contact [email protected] with your store domain (if relevant) and a description of your request. We may need to verify your identity. We will never ask for your password.
If your request concerns a store's customers, an order or a purchase, please contact that merchant first. We will assist the merchant with requests about information we process on its behalf.
10. Security
We use technical and organizational measures appropriate to the information we handle, including access controls, encryption where appropriate and monitoring. No system can be guaranteed completely secure. To report a security issue, contact [email protected].
12. Changes
We may update this policy as the App, our practices or legal requirements change. We will update the effective date above and, where required, give additional notice.
13. Contact
Zerqith.com [email protected]