Services
Industries
Portfolio About US
Start a Project →
Finventory — Cross-Platform Flutter Business App
Home Case Studies Finventory — Cross-Platform Flutter Business App

Finventory — Cross-Platform Flutter Business App

A cross-platform Flutter application for Windows, macOS, Linux, Android, and iOS — giving factory and warehouse teams inventory and accounting tools on desktop and on the go.

Manufacturing & Trading / Inventory Management SaaS 12–16 Weeks Desktop + mobile, one codebase
Project Overview

Finventory is a subscription-based cloud SaaS platform built for factories, printing presses, warehouses, and trading businesses in Pakistan. It replaces scattered Excel sheets, paper challans, and separate billing tools with one connected system for sales, purchases, stock, ledgers, tax-aware invoicing, and analytics — all synced to the cloud with multi-company workspaces and role-based access.

The product supports the full operational cycle: sales orders → delivery challans → invoices → payments → party ledgers, with raw material and finished goods tracking, production readiness analytics, PDF exports, and subscription plans. Owners, managers, operations staff, and accountants each get the access level they need without maintaining separate systems.

Industry
Manufacturing & Trading / Inventory Management SaaS
Timeline
12–16 Weeks
Budget Range
Custom SaaS build (contact for quote)
The Challenge

What We Were Up Against

Disconnected spreadsheets

Sales, stock, and accounts lived in separate Excel files with no real-time sync or audit trail.

Paper challan workflow

Delivery challans and invoices were manual, causing stock mismatches and delayed billing.

Multi-company complexity

Business owners needed separate datasets per company with shared login and plan limits.

Tax & compliance gaps

Sale tax, further tax, NTN/STRN, and filer/non-filer rules had to appear correctly on invoices.

No role-based access

Managers, ops, and accountants all needed different permissions on the same data.

The Solution

How We Solved It

Cloud SaaS architecture

Firebase-backed multi-tenant platform with Auth, Firestore, Storage, and subscription billing.

End-to-end workflows

Orders, challans, invoices, returns, and payments linked in one operational flow.

Smart stock engine

Finished goods and raw materials update on sale/purchase with trader mode and vendor-based options.

Integrated accounting

Party ledgers, receivables/payables, day book, trial balance, and ageing reports.

Production Readiness analytics

Scales raw material requirements to a base production quantity with vendor or generic stock matching.

Branded PDF exports

Invoices, challans, ledgers, and reports with company logo and professional layout.

Build Timeline

How We Built It — Week by Week

Weeks 1–2

Discovery & architecture

Mapped factory/trading workflows, multi-company model, and Firebase SaaS structure.

Weeks 3–5

Core data & auth

Company workspaces, roles, PIN access, Firestore schema, and subscription plans.

Weeks 6–8

Sales & purchase modules

Orders, challans, invoices, returns, stock rules, and party ledgers.

Weeks 9–11

Inventory & production

Raw materials, finished goods, BOM, production readiness, and analytics.

Weeks 12–14

Accounting & reports

Ageing, trial balance, PDF services, receivables/payables.

Weeks 15–16

Launch & polish

Play Store / desktop packaging, billing integration, QA, and deployment.

Platform Screenshots

See It in Action

Dashboard — Desktop View
Dashboard — Desktop View
Sales Invoice — Create Flow
Sales Invoice — Create Flow
Inventory Analytics — Production Readiness
Inventory Analytics — Production Readiness
Party Ledger — Detail View
Party Ledger — Detail View
Finished Good — BOM & Settings
Finished Good — BOM & Settings
Daybook — Record Transactions
Daybook — Record Transactions
Technology Stack

Built With the Best Tools

Frontend

Flutter
Flutter

Backend

Firebase Auth
Firebase Auth

Database

Cloud Firestore
Cloud Firestore

Storage

Firebase Storage
Firebase Storage

State

Riverpod
Riverpod

Routing

GoRouter
GoRouter

PDF

PDF + Printing
PDF + Printing

Billing

Stripe / Web Checkout
Stripe / Web Checkout
Cloud Solution

Need a cloud-backed business platform?

We architect Firebase backends for inventory, ERP, and SaaS products — secure, scalable, and multi-tenant ready.