Case Study

Buyfyn

A B2B marketplace connecting wholesale buyers and sellers through a seamless inquiry → quotation → order workflow — with catalog management and real-time chat.

My Role
Mobile App Developer
Platforms
iOS & Android
Category
B2B · Marketplace
Stack
Flutter · BLoC · Firebase
Status
Launching Soon
App launching soon — store links will be added on release
Buyfyn app screens
Overview

B2B trade, done the right way

Buyfyn is a B2B marketplace that digitises the entire wholesale buying and selling process. Buyers discover suppliers and raise inquiries, sellers respond with smart quotations, and once a buyer accepts — the order is confirmed automatically. No back-and-forth, no paperwork, no missed messages.

I built the Buyfyn mobile app from scratch in Flutter using BLoC for predictable, event-driven state management and Firebase for backend services, real-time chat and push notifications — delivering a consistent experience across iOS and Android from a single codebase.

The Challenge & Goals

The Challenge

Wholesale B2B trade still runs on phone calls, WhatsApp and manual paperwork. Buyers struggle to discover the right suppliers, quotations get lost, and there's no clear audit trail from inquiry to confirmed order. The goal was to build a structured, digital workflow that makes B2B sourcing as simple as placing a retail order.

The Goals

  • Streamlined inquiry → quotation → order flow
  • Seller catalog & product management
  • Smart quotations that auto-convert on acceptance
  • Real-time chat between buyers & sellers
  • Push notifications for every status update
Core Workflow

Inquiry → Quotation → Order

The heart of Buyfyn is a structured three-step trade flow that eliminates ambiguity and keeps both parties aligned at every stage.

Inquiry

Buyer browses catalog and sends a structured inquiry to the seller

Quotation

Seller responds with a smart quotation — pricing, quantities and terms

Order Confirmed

Buyer accepts — quotation auto-converts into a confirmed order instantly

Key Features

What Buyfyn does

Supplier Discovery

Buyers browse verified suppliers and their full product catalogs in one place.

Inquiry Management

Structured inquiry flow so buyers clearly communicate requirements to sellers.

Smart Quotations

Sellers send detailed quotations that auto-convert to confirmed orders on buyer acceptance.

Catalog Management

Sellers maintain a structured product catalog with pricing, variants and availability.

Real-time Chat

Built-in messaging so buyers and sellers can negotiate and clarify details without leaving the app.

Push Notifications

Instant alerts for new inquiries, quotations received, and order confirmations.

Tech & Architecture

How it's built

Buyfyn is built in Flutter for a consistent, native-quality experience across iOS and Android from a single codebase. BLoC (Business Logic Component) drives a clean, event-driven state architecture — keeping UI, logic and data neatly separated and easy to scale. Firebase powers authentication, the real-time database, in-app chat and push notifications.

FlutterDartBLoCFirebase Real-time ChatPush NotificationsClean Architecture
Outcome

The result

iOS + Android
Shipped to both platforms
End-to-end
Inquiry to confirmed order
B2B Ready
Buyers, sellers & catalogs

Have a product like this in mind?

I help startups and businesses take mobile apps from idea to launch on iOS and Android.