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Case Study

Four App

A pre-booking app I made for a Italian clothing brand. The app is built using Flutter and Firebase and the web dashboard in Next.js. It allows users to pre-book their favorite items and get notified when the items are available.

Pre-booking retail app

Screenshot of Four App

Project Snapshot

Role: Full-stack developer — mobile app, web dashboard, and notifications.

Tech stack details are outlined below.

Overview

A pre-booking experience for a fashion brand that lets customers reserve limited drops and receive availability notifications. It supports both customers and back-office teams.

Technical highlight: Integrated Stripe for deposits and built event-driven notifications to keep customers informed.

The Result

Enabled a structured pre-booking workflow that increased demand visibility, reduced drop-off, and improved launch coordination.

The Problem

The brand needed a smooth way to manage pre-orders and alert customers when stock is available.

The Solution

Built a Flutter mobile app paired with a Next.js admin dashboard and Firebase-driven notifications.

Tech Stack

Key Features

  • Pre-booking flows with reservation status updates.
  • Admin dashboard for inventory and release management.
  • Customer notifications for availability alerts.