Batchwren Privacy Policy

Effective: November 9, 2026. Publisher: Front Porch Puzzle Press ("we"). This policy covers the Batchwren app for Shopify.

Batchwren helps makers who sell on Shopify track their raw materials, write recipes for their products, record production batches, use up materials automatically when orders come in, and know each product's true cost. A shop ("merchant") installs Batchwren from the Shopify App Store. We process data on the merchant's behalf and only to run the app.

What Batchwren receives from Shopify

Shop details: the shop's name, myshopify domain, currency and time zone.
Products: for the product variants the merchant links to a recipe: product and variant titles, SKU, option values (such as scent or size), and the variant's inventory item ID and current cost.
Locations: the names and IDs of the shop's locations.
Orders, without the buyer: when an order is created, edited, cancelled or refunded, Batchwren receives or reads the order number, dates, sales channel, the point-of-sale location for in-store orders, line items (variant, title, SKU, quantities) and refund lines (quantities and restock type). Batchwren asks Shopify to leave buyer fields out of these messages, and it never requests or stores a customer's name, email, phone, address or customer ID. Prices and payment details are not needed and not stored.
A Shopify access token for the shop, stored so the app can act for the merchant (to read orders, add finished batches to inventory and write product costs).

What the merchant enters

Materials, recipes, batches and stock counts, with costs and notes.
Supplier records: name, and optionally email, phone, website and notes. These are the merchant's own business contacts.
An optional alert email address for the daily low-stock list.

What Batchwren does with it

Keeps material stock and its history, calculates each product's cost, uses up materials for orders and batches, adds finished batches to the merchant's Shopify inventory when the merchant records them, writes each linked product's cost to Shopify's "Cost per item" if the merchant leaves that on, produces supply-order PDFs and, if the merchant asks for it, a daily low-stock email. Nothing else. No analytics, tracking, advertising or profiling; no selling or sharing of data; no use of data to train AI or machine-learning models.

Where data is kept, and who processes it

Railway (hosting and the PostgreSQL database), in the United States.
Shopify, which the merchant already uses; Batchwren reads from and writes to the merchant's store through Shopify's Admin API.
Resend (email delivery), only if low-stock emails are turned on: it receives the alert address and the list of low materials.

When a shop installs or uninstalls Batchwren or its plan changes, the publisher may receive a short notice with the shop's myshopify domain, the plan, its price and the time, sent through an email provider. It contains no other shop or customer information.

Data is encrypted in transit (HTTPS) and at rest (AES-256 on Railway's storage). Access to production systems is limited to the publisher.

Retention and deletion

While the app is installed, data is kept so stock history and costs stay complete.
When the merchant uninstalls Batchwren, the Shopify access token is deleted at once. Shopify then sends a deletion request 48 hours later, and every record for that shop (materials, recipes, batches, order records, stock history, suppliers, supply orders, settings) is permanently deleted when it arrives. Reinstalling within those 48 hours keeps the data.
Customer data requests and customer erasure requests from Shopify are answered; because Batchwren holds no customer data, there is nothing to report or erase.

Your rights

Depending on where you live (for example under the GDPR or the CCPA/CPRA) you may have rights to access, correct, delete or port personal data. Merchants can export their materials and stock history as CSV in the app at any time, and can contact us for anything else.

Children

Batchwren is a business tool for shop owners and is not directed to children under 13.

Changes and contact

We will post any changes on this page with a new effective date. Questions or requests: hello@frontporchpuzzlepress.com.