Building a Flexible, Scalable Mobile App for a Global E-Commerce Platform
+70%
Daily active users
Growth recorded in the first three months after the app went live.
+50%
Customer satisfaction
Improvement following the launch of the cross-platform app.
+40%
International and GCC orders
Growth in orders placed internationally and across the GCC region.
The client
METRO BRAZIL sells premium Brazilian products abroad, starting with authentic luxury Brazilian shapewear for the Middle East — the first e-commerce platform to specialise in that category.
It is now expanding globally, with its strongest growth still in the Middle East and the GCC, markets it serves with localised experiences in several languages and currencies.
The challengeWhat the teams actually needed
Mobile commerce ran on native apps that were expensive to maintain and drifting away from the web platform, leaving the shopping experience inconsistent and slow to update.
Challenge 01Native apps that were hard to maintain
The existing mobile apps lacked maintainability and flexibility, and keeping them updated across platforms was costly.
Challenge 02A mobile experience out of step with the web
UI and UX differed between the apps and the web platform, and the apps had no multilingual or multi-currency support.
Challenge 03Little visibility into mobile sales
Tracking specific to mobile was limited, and performance gaps showed in transitions and animations.
What we did
A Flutter app that reuses the platform it sits on
The build ran in three phases — design, development, then launch and support — with Flutter keeping one codebase across iOS and Android.
Designs reworked around the brand
Existing graphic designs were reviewed and brought in line with the METRO BRAZIL brand. The team mapped how customers move through the app, then wireframed the layout, the core screens and the key native UI components.
One codebase, the web experience reused
Navigation was designed from scratch and WebViews reuse the existing e-commerce screens while keeping a native feel, so the app carries the same experience as the web platform, in several languages and currencies.
Launched on both stores, then tuned
The app shipped to Google Play and the App Store with final assets and animations, UTM tracking and Firebase remote configuration in place for targeted updates and A/B testing, followed by bug fixes and support through peak traffic.
An exclusive tier for GCC customers
The app carries an exclusive METRO BRAZIL VIP PROGRAM for VIP customers in the GCC.
Client testimonial
We aimed to provide our customers with a seamless shopping experience across all devices, especially on mobile. The new Flutter-based application created by Netguru gave us the flexibility, performance, and user engagement we were looking for. It not only aligned with our platform’s design but also significantly boosted user retention and sales.
Tech stackThe tools that made it possible
01
Flutter
One codebase across iOS and Android, chosen for fast cross-platform development.
02
Shopify
The e-commerce platform the app integrates with.
03
WebViews
Existing e-commerce screens reused inside the app, with custom mechanisms handling interactions within them.
04
Firebase
Tracking and remote configuration, used to push updates to specific audiences, run A/B tests and tune the app while it is live.
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What’s next