Popup & Email/SMS List Builder is a build-to-order Shopify app that turns anonymous storefront traffic into a growing list of email and SMS subscribers. Instead of bolting on a generic widget, ECOSIRE builds and installs a popup engine tailored to your theme, your discount logic, and your marketing stack.

The app embeds via a Theme App Extension (an app embed block), so it loads through the Online Store 2.0 theme editor with no theme.liquid edits and survives theme updates. You get a drag-and-drop builder for popups, spin-to-win wheels, exit-intent teasers, and inline embedded forms — each styled to match your brand.

Targeting is rule-based: trigger by traffic source, time on page, scroll depth, exit intent, cart value, returning vs. new visitor, or device. When a visitor subscribes, the app creates the customer through the Admin GraphQL API with the correct emailMarketingConsent and smsMarketingConsent states, writes attribution to customer metafields, and instantly issues a unique discount code via the discountCodeBasicCreate mutation — no shared, abusable coupon.

Dual email + SMS capture keeps phone collection compliant: explicit checkbox consent, consent timestamps, and clean handoff to Shopify Email, Klaviyo, Postscript, or your ESP/SMS provider via webhooks or native customer sync. We respect Shopify's customer privacy and consent APIs throughout.

Because this is built-to-order, there is no instant App Store download. After purchase, ECOSIRE scopes your requirements, builds the app against your store, installs it via a custom (unlisted) app with least-privilege OAuth scopes, and hands it over tested. The one-time price covers the build and installation; we also offer ongoing support and updates. You own a list-growth tool shaped to your funnel — not a one-size-fits-all widget.