E-Commerce App. Full-Featured Online Shopping Application
A cross-platform shopping app and web store that stay in sync — with 35% more mobile conversions and 10,000+ orders in two months.

Overview
A retail brand wanted to sell through a mobile app as well as its web store, giving customers the same products, stock and experience on every channel.
The app needed the complete shopping journey: browsing, cart, secure checkout and order tracking — plus an admin dashboard for the team running the store.
- Project typeMobile & Web Application
- ClientRetail Brand
- TechnologiesReact Native, Shopify, Node.js
- Timeline6 Months
- Year2024
The challenge
Selling the same stock through two channels means inventory has to stay in sync in real time. Otherwise customers can buy items that have already sold out on the other channel.
Promotional events make that harder. Traffic peaks exactly when stock moves fastest, so the system had to stay responsive under load.
Goals
- Launch a mobile shopping app alongside the web store
- Keep inventory synchronised across both channels in real time
- Stay fast during promotional traffic peaks
- Give the team an admin dashboard to run the store


Our approach
We built the app in React Native, so one codebase serves both iOS and Android.
Shopify powers the commerce core, while a Node.js layer keeps the mobile app and the web store working from the same live inventory.
We planned for peak traffic from the start. Promotions are when a store earns most, so the checkout and inventory flow had to hold up under pressure.
We delivered the app in six months.
Key decisions
- One codebase, two platforms. React Native delivers the shopping app on both iOS and Android.
- Shared live inventory. The app and the web store sell from the same stock levels, so customers never buy what has sold out.
- Built for peak days. Checkout and inventory were planned around promotional traffic, when sales matter most.
What we built
- Product browsingCustomers explore the catalogue on mobile.
- Cart managementAdd, edit and review items before checkout.
- Secure checkoutA safe, mobile-friendly payment flow.
- Order trackingCustomers follow their order after purchase.
- Admin dashboardThe team manages products, orders and stock.
- Real-time inventory syncThe app and the web store share live stock levels.

The results
The app achieved a 35% increase in mobile conversions.
It processed over 10,000 orders in the first two months after launch.
Tech & delivery
E-Commerce App was designed and built by the Prognesoft team over 6 months, following our process: discovery, architecture and design, development and testing, then launch and support.
Have a similar project?
Selling online through more than one channel? A mobile app that shares live inventory with your web store, and holds up during promotions, can turn mobile browsers into buyers.






