React Native vs Flutter for Shopify Apps: A Technical Comparison (2026) Last updated: May 2026 | Reading time: 8 minutes For UK Shopify brands evaluating mobile app agencies, the technology stack question — React Native vs Flutter — matters because it determines Shopify integration capability. What React Native and Flutter actually are React Native (Meta): Uses JavaScript and React to build mobile interfaces. UI components render as native iOS and Android components. Flutter (Google): Uses Dart language and a custom rendering engine. UI components are drawn custom by Flutter — they look like the platform but are not native platform components. Why React Native is the standard for Shopify apps Shopify Checkout Kit is built for React Native. Shopify's native checkout SDK — enabling sub-30-second Shop Pay checkout — has a first-class React Native implementation. Shopify builds and maintains this SDK for React Native.…