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25 million eSIMs sold: How Holafly builds with Flutter

Flutter — Aug 25, 2026 — talk

Why watch

This Flutter Dev Story showcases how Holafly transitioned their engineering to Flutter to support 25 million eSIM sales. The video covers their modular monorepo architecture, implementing type-safe native platform bindings for eSIM activations, and managing internationalization across 20+ languages using the Crowdin Flutter SDK combined with Gemini AI. Ideal for mobile developers building enterprise-scale applications.