Custom Shopify App & Liquid Development

Tweezerman: Custom Shopify app powering personalized product finders and warranty registration

Tweezerman needed a Shopify storefront that could match shoppers with the right tool from a 400+ SKU catalog and capture lifetime warranty registrations without breaking checkout. Fortify Commerce built a custom embedded Shopify app, Liquid sections, and a metafield-driven product finder shipped end-to-end.

Industry: Beauty Tools / DTC + RetailScope: Custom Shopify App & Liquid Development
−68%
Storefront JS payload
1.1s
LCP (was 3.8s)
+24%
PDP add-to-cart rate
Challenge

The problem

The existing theme relied on 11 third-party apps for guided-selling, warranty, and reviews — slowing LCP to 3.8s, bloating Liquid render time, and leaking customer data across vendors. Retail returns were spiking because shoppers couldn't self-identify the right SKU online.

Stack
Shopify PlusLiquidRemixPolarisAlpine.jsKlaviyoShopify CLI
Approach

What we shipped

  • +Built a custom embedded Shopify app (Remix + Polaris) for warranty registration, writing to a customer metaobject and Klaviyo profile
  • +Engineered a Liquid + Alpine.js product finder driven by metafield taxonomy — replacing 4 paid apps
  • +Refactored the theme to a section-everywhere architecture with critical CSS inlined and JS deferred
  • +Migrated reviews and Q&A to a first-party schema-marked block (AggregateRating + Product)
  • +Set up CI for theme deploys with Shopify CLI, preview themes per PR, and Lighthouse budgets
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