Hisaab Seller
Junaid MemonBuild a mobile-first web app called “Hisaab Seller” for Pakistani Instagram, WhatsApp and small online sellers. The app must let users enter product cost, selling price, quantity, delivery, packaging, discount, platform fee and other expenses, then instantly show total cost, net profit, profit margin and markup in PKR. Add an invoice/receipt generator with seller details, customer name, items, quantity, date, invoice number, discount and optional tax field. Generate a clean downloadable PDF and a shareable WhatsApp message. Support English, Urdu and Roman Urdu labels. Add a simple order history dashboard with paid, pending and cancelled status. Use a clean green/white mobile-friendly design, PKR by default, responsive layout, clear validation and no complex features. Start with guest mode and local storage; add login and payments later. Do not claim FBR compliance unless legally verified. Improve the app for Pakistani WhatsApp sellers. Add one-click “Copy WhatsApp Invoice” button, product templates, customer history, daily/monthly sales and profit summary, CSV export, dark mode, Urdu RTL layout, and sample demo data. Keep the interface extremely simple: Dashboard, New Sale, Profit Calculator, Invoice, Orders and Settings. Make every calculation accurate and test discount, delivery, packaging, commission, tax, quantity and negative-profit cases.
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System Requirements
Hisaab Seller System Requirements Document
1. Introduction
The "Hisaab Seller" project aims to develop a mobile-first web application tailored for Pakistani Instagram, WhatsApp, and small online sellers. The application will facilitate sellers in managing their sales and expenses efficiently, providing instant calculations and generating invoices in a user-friendly manner.
2. System Overview
Hisaab Seller is designed to simplify the sales process for small online sellers in Pakistan. The application will allow users to input various sales-related data and instantly calculate financial metrics such as total cost, net profit, profit margin, and markup. It will also generate invoices and support multiple languages, including English, Urdu, and Roman Urdu. The app will feature a clean, responsive design with a focus on usability and simplicity.
3. Functional Requirements as Story Points
- As a Seller, I should be able to enter product cost, selling price, quantity, delivery, packaging, discount, platform fee, and other expenses to calculate total cost, net profit, profit margin, and markup in PKR.
- As a Seller, I should be able to generate an invoice/receipt with seller details, customer name, items, quantity, date, invoice number, discount, and optional tax field.
- As a Seller, I should be able to download a clean PDF of the invoice and share it via WhatsApp.
- As a Seller, I should be able to view an order history dashboard with paid, pending, and cancelled statuses.
- As a Seller, I should be able to use the app in English, Urdu, and Roman Urdu.
- As a Seller, I should be able to operate the app in guest mode with local storage.
- As a Seller, I should be able to copy the invoice details to WhatsApp with one click.
- As a Seller, I should be able to create and use product templates for quick entry.
- As a Seller, I should be able to view customer history for repeat transactions.
- As a Seller, I should be able to view daily and monthly sales and profit summaries.
- As a Seller, I should be able to export sales data to CSV format.
- As a Seller, I should be able to switch to dark mode for better visibility in low-light conditions.
- As a Seller, I should be able to use the app in Urdu RTL layout.
- As a Seller, I should be able to access sample demo data to understand app functionality.
- As a Seller, I should be able to ensure all calculations are accurate, including handling discounts, delivery, packaging, commission, tax, quantity, and negative-profit cases.
4. User Personas
- Seller: The primary user of the application, typically a small business owner or individual selling products online through platforms like Instagram and WhatsApp.
5. Core User Flows
- Seller enters product details -> calculates total cost and profit metrics -> generates invoice -> downloads PDF or shares via WhatsApp.
- Seller views order history -> filters by status (paid, pending, cancelled) -> reviews past transactions.
- Seller accesses settings -> switches language or layout -> enables dark mode or RTL layout.
6. Visuals Colors and Theme
- primary: #4CAF50 (Green)
- primary_light: #81C784 (Light Green)
- secondary: #FFFFFF (White)
- accent: #FF5722 (Orange)
- highlight: #FFC107 (Amber)
- bg: #F1F8E9 (Light Green Background)
- surface: #FFFFFF (White Surface)
- text: #212121 (Dark Grey)
- text_muted: #757575 (Grey)
- border: #BDBDBD (Light Grey)
7. Signature Design Concept
The Hisaab Seller app will feature an interactive "Sales Journey" animation on the landing page. Users will see a visual representation of a product's journey from listing to sale. The animation will include:
- A product icon moving through stages: listing, customer selection, sale, and invoice generation.
- Each stage will animate with a smooth transition, highlighting key actions like price calculation and invoice creation.
- Users can interact by clicking on stages to see detailed pop-ups with tips and information.
- The animation will be built using
motion/reactfor smooth transitions and interactivity.
Landing Hero Motion Brief
The landing page will feature a continuous loop animation illustrating the transformation of a product from listing to sale. The animation will start with a product icon, which transforms as it moves through the sales process, ending with an invoice icon. The loop will last 10 seconds, with interactive elements allowing users to explore each stage. The animation will be responsive, adapting to different screen sizes while maintaining clarity and engagement.
8. Interaction Model & Motion Direction
- Interaction Model: Animated
- The landing page will feature moderate scroll-triggered reveals and hover transitions, enhancing user engagement without overwhelming them.
- Internal pages will maintain a static layout for clarity and ease of use.
9. Non-Functional Requirements
- The application must be mobile-first, ensuring optimal performance and usability on smartphones.
- The app must support responsive design, adapting to various screen sizes and orientations.
- All calculations must be accurate and validated to prevent errors in financial metrics.
- The app must be lightweight and fast, ensuring quick load times and smooth interactions.
10. Tech Stack
- Frontend: React for Web
- Backend: Python, FastAPI
- Database: MySQL or MariaDB
- Local Orchestration: Docker, docker-compose
11. Assumptions and Constraints
- The app will initially support guest mode with local storage; login and payment features will be added later.
- The app will not claim FBR compliance unless legally verified.
- The default currency will be PKR, and the app will cater primarily to the Pakistani market.
12. Glossary
- PKR: Pakistani Rupee
- RTL: Right-to-Left
- FBR: Federal Board of Revenue (Pakistan)
- CSV: Comma-Separated Values
- PDF: Portable Document Format
Track Every Sale. Know Your Real Profit.
Apna hisaab, apne hath mein — sab kuch PKR mein.
Hisaab Seller helps small online sellers calculate cost, profit and margin instantly, generate clean invoices, and share them on WhatsApp — all from your phone, no signup required.
Manage Your Sales. Maximize Your Profit.
From cost to invoice in seconds — the simplest hisaab companion for Instagram and WhatsApp sellers across Pakistan.
Instant Profit Calculations
Enter cost, selling price, delivery, packaging, discount and fees to see total cost, net profit, margin and markup in PKR — instantly.
Invoices & WhatsApp Sharing
Generate a clean, downloadable PDF invoice and share it with your customer on WhatsApp in one tap.
Built For Pakistani Sellers
Use Hisaab Seller in English, Urdu or Roman Urdu — switch labels to whatever feels natural to you.
Know Your Profit Before You Ship
Hisaab Seller does the math, tracks every order, and remembers your products — so you always know what you're really earning in PKR.
Instant Profit Calculator
Enter cost, selling price, quantity, delivery, packaging, discount and platform fee — get total cost, net profit, margin and markup in PKR instantly.
Tap or hover to preview →Order History Dashboard
Track every sale with Paid, Pending and Cancelled filters, plus daily and monthly revenue summaries at a glance.
Tap or hover to preview →Product Templates
Save your best-selling items as templates and add them to a new order in one tap — no retyping prices every time.
Tap or hover to preview →Invoice, Share & Export — Without the Hassle
Tap a card to see exactly how each feature works, step by step.
Add seller details, customer name, items, quantities, dates and invoice numbers in seconds — with discount and optional tax fields built in.
Write the invoice once, then copy or share it as a ready-to-send WhatsApp message — no retyping, no screenshots.
Export your order history and sales reports to CSV anytime — perfect for backups, taxes prep or sharing with your accountant.
Designed to Get Out of Your Way
Hisaab Seller adapts to how you work — your language, your lighting, your connection — so you can focus on selling, not the app.
Urdu & Roman Urdu Support
Switch effortlessly between English, Urdu and Roman Urdu labels so every seller feels at home in the language they think in.
Dark Mode
Easy on the eyes during late-night order updates, and gentler on your battery when you are managing sales on the go.
Guest Mode with Local Storage
Start selling in seconds — no sign-up required. Everything is saved on your device and works even without internet.
Built for the way Pakistani sellers actually sell
From Instagram DMs to WhatsApp catalogues to a home-based shop — here is how Hisaab Seller fits into three everyday selling stories.
Ayesha manages 40+ DM orders a day without touching a calculator
Ayesha runs a handmade jewellery page on Instagram. Between DM orders, story replies and comment queries, she used to lose hours working out cost, delivery and profit for every single sale. With Hisaab Seller she enters product cost, selling price and quantity once, and net profit, margin and markup show up instantly — right before she replies to the customer.
Bilal sends a professional invoice on WhatsApp in under 10 seconds
Bilal resells imported cosmetics through a WhatsApp Business catalogue. He needed a fast way to check his margin after delivery, packaging and commission, then hand the customer a clean receipt. Now he calculates the profit, generates an invoice, and taps “Copy WhatsApp Invoice” to drop it straight into the chat.
Sana reviews a whole month of sales from one simple dashboard
Sana runs a small home-based grocery and snacks shop, selling to walk-ins and online customers alike. She used to track everything in a notebook. With Hisaab Seller's order history and monthly summary, she sees paid, pending and cancelled orders at a glance, and exports the whole month to CSV for her own records.
Ready to Start Your Sales Journey?
No sign-up, no waiting — jump straight in as a guest and your sales, invoices, and profit numbers are saved instantly on this device with local storage. Add login and payments only if and when you need them.
Track Every Sale. Know Your Real Profit.
Apna hisaab, apne hath mein — sab kuch PKR mein.
Hisaab Seller helps small online sellers calculate cost, profit and margin instantly, generate clean invoices, and share them on WhatsApp — all from your phone, no signup required.
Manage Your Sales. Maximize Your Profit.
From cost to invoice in seconds — the simplest hisaab companion for Instagram and WhatsApp sellers across Pakistan.
Instant Profit Calculations
Enter cost, selling price, delivery, packaging, discount and fees to see total cost, net profit, margin and markup in PKR — instantly.
Invoices & WhatsApp Sharing
Generate a clean, downloadable PDF invoice and share it with your customer on WhatsApp in one tap.
Built For Pakistani Sellers
Use Hisaab Seller in English, Urdu or Roman Urdu — switch labels to whatever feels natural to you.
Know Your Profit Before You Ship
Hisaab Seller does the math, tracks every order, and remembers your products — so you always know what you're really earning in PKR.
Instant Profit Calculator
Enter cost, selling price, quantity, delivery, packaging, discount and platform fee — get total cost, net profit, margin and markup in PKR instantly.
Tap or hover to preview →Order History Dashboard
Track every sale with Paid, Pending and Cancelled filters, plus daily and monthly revenue summaries at a glance.
Tap or hover to preview →Product Templates
Save your best-selling items as templates and add them to a new order in one tap — no retyping prices every time.
Tap or hover to preview →Invoice, Share & Export — Without the Hassle
Tap a card to see exactly how each feature works, step by step.
Add seller details, customer name, items, quantities, dates and invoice numbers in seconds — with discount and optional tax fields built in.
Write the invoice once, then copy or share it as a ready-to-send WhatsApp message — no retyping, no screenshots.
Export your order history and sales reports to CSV anytime — perfect for backups, taxes prep or sharing with your accountant.
Designed to Get Out of Your Way
Hisaab Seller adapts to how you work — your language, your lighting, your connection — so you can focus on selling, not the app.
Urdu & Roman Urdu Support
Switch effortlessly between English, Urdu and Roman Urdu labels so every seller feels at home in the language they think in.
Dark Mode
Easy on the eyes during late-night order updates, and gentler on your battery when you are managing sales on the go.
Guest Mode with Local Storage
Start selling in seconds — no sign-up required. Everything is saved on your device and works even without internet.
Built for the way Pakistani sellers actually sell
From Instagram DMs to WhatsApp catalogues to a home-based shop — here is how Hisaab Seller fits into three everyday selling stories.
Ayesha manages 40+ DM orders a day without touching a calculator
Ayesha runs a handmade jewellery page on Instagram. Between DM orders, story replies and comment queries, she used to lose hours working out cost, delivery and profit for every single sale. With Hisaab Seller she enters product cost, selling price and quantity once, and net profit, margin and markup show up instantly — right before she replies to the customer.
Bilal sends a professional invoice on WhatsApp in under 10 seconds
Bilal resells imported cosmetics through a WhatsApp Business catalogue. He needed a fast way to check his margin after delivery, packaging and commission, then hand the customer a clean receipt. Now he calculates the profit, generates an invoice, and taps “Copy WhatsApp Invoice” to drop it straight into the chat.
Sana reviews a whole month of sales from one simple dashboard
Sana runs a small home-based grocery and snacks shop, selling to walk-ins and online customers alike. She used to track everything in a notebook. With Hisaab Seller's order history and monthly summary, she sees paid, pending and cancelled orders at a glance, and exports the whole month to CSV for her own records.
Ready to Start Your Sales Journey?
No sign-up, no waiting — jump straight in as a guest and your sales, invoices, and profit numbers are saved instantly on this device with local storage. Add login and payments only if and when you need them.
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