Quick answer: An ecommerce client had a live, functional Shopify app that needed performance improvements, new features, bug fixes, and a better user experience, rather than a rebuild. Amwhiz positioned this against its own Shopify app studio, Zuperapps, where the team has built and published multiple apps using the same Polaris, Remix, and Billing API stack the brief called for.
The client needed an experienced Shopify app developer to enhance and expand an existing app that was already live and functional. The goal was to improve performance, add new features, fix bugs, and optimize the overall user experience, rather than start over. The responsibilities included:
App-level work, the Admin API, GraphQL, Shopify Functions, and Polaris, is core to what Amwhiz does at Zuperapps, its independent Shopify app studio, not an occasional sideline to theme-level development.
Amwhiz has built and published four public Shopify apps under Zuperapps, including PayRules and CheckoutIQ, both built on Shopify Functions, plus four custom apps developed directly for merchants covering checkout customization and POS/ERP-related functionality.
Amwhiz's app builds use Polaris for the admin UI, keeping the interface consistent with Shopify's own design system, and are built on the Remix framework, which is Shopify's current recommended architecture for embedded apps.
On billing specifically, PayRules itself runs on tiered pricing, Free, Growth at $9.99, and Pro at $24.99, so Amwhiz has implemented Shopify's Billing API directly for subscription-based pricing before, including plan upgrades, downgrades, and usage-based logic, all directly relevant to enhancing an existing app's monetization or feature-gating.
Amwhiz offered to walk through its other published apps and unlisted custom merchant builds in more detail on a call, since some of that work isn't publicly listed.
By scoping the work precisely against the brief and drawing on directly comparable past projects, Amwhiz helped move the engagement from an unfinished brief to a professional, ready-to-launch result.
If the app is already live and functional, enhancing it, improving performance, adding features, and fixing bugs, is usually more efficient than a full rebuild, provided the existing codebase is stable enough to build on safely.
Shopify currently recommends Remix as the architecture for embedded apps, paired with Polaris for the admin interface, so the app stays consistent with Shopify's own design system and update cadence.
Yes. Shopify's Billing API supports tiered subscription pricing directly, including plan upgrades, downgrades, and usage-based billing, so an app doesn't need separate payment infrastructure to charge merchants.
Staying compatible means monitoring Shopify's API and Polaris updates, testing app extensions and webhooks against new releases, and updating the codebase proactively rather than waiting for something to break in production.
Have an existing Shopify app that needs new features, better performance, or a UX refresh? Connect with Amwhiz to scope the enhancement work.
Email: sales@amwhiz.com | Phone: +91 91500 65500