Offline Inventory & Billing Management System | React Native Expo Mobile App for Android & iOS

Welcome to Isaf – Your Complete Offline Inventory & Billing Management Solution

Android APK: https://loadly.io/C5eepony

Are you a shop owner, retail entrepreneur, or small business looking to digitize and streamline your daily operations — right from your phone, without depending on the internet? Isaf is your all-in-one offline inventory and billing management mobile app, built to power your shop with speed, accuracy, and ease. Designed for shop owners, store managers, and billing staff, Isaf provides a smart, fully offline-first solution for managing products, bills, customers, udhaar (credit ledger), and reports — all from a beautiful, native-feeling mobile app that runs on both Android and iOS.

Whether you’re running a single kirana store, a retail outlet, or building a white-label shop management platform, Isaf gives you the tools and confidence to operate efficiently, manage credit, track inventory, and grow faster — completely offline, right from the palm of your hand.

Key Features of Isaf

• Mobile App (Android & iOS): A fully native-feeling mobile app built with React Native + Expo — runs smoothly on both Android and iOS without any internet connection.
• Optimized for Mobile Use: Every screen — bills, inventory, udhaar, reports, and settings — is designed and fine-tuned for touch interaction and on-the-go usage at the shop counter.
• 100% Offline — No Internet Required: Once installed, Isaf works completely without internet. Create bills, manage stock, track udhaar, and generate PDFs — all offline, all the time.
• Bill & Invoice Management: Create professional invoices instantly, track payment status (Paid / Partial / Unpaid), and download clean PDF invoices with your shop branding.
• Inventory Management: Add products with categories (Food, Beverages, Electronics, Medicines, Clothing, Stationary, and more), manage stock levels, set low-stock alerts, and track purchase vs selling price with profit calculation.
• Udhaar Book (Credit Ledger): Manage customer credit with a complete transaction history — add credit entries, record payments, track pending balances, and download a full account statement as PDF.
• Customer Management: Register and manage customer profiles with name, phone, email, address, and purchase history including total bills and total amount spent.
• PDF Generation: Auto-generate professional PDF invoices and customer account statements — includes shop branding, itemized table, payment method, tax, discount, and balance summary.
• Reports & Analytics: Real-time dashboard with revenue, collections, discounts, and udhaar pending — filter by Today, Last 7 Days, Last 30 Days, or All Time. Includes payment method breakdown and top-selling products.
• Multi-language Support: Supports 8+ languages — switch instantly from settings without restarting the app.
• Dark Mode: Full dark mode support across the entire app with a single tap.
• Multi-currency Support: Configure your store currency (₹, $, €, £, ¥ and more) from Settings.
• GST & Tax Support: Set your GST number and default tax rate — auto-applied to invoices and shown on PDF bills.
• Offline-First Architecture: All data is stored securely on your own device using local storage. No cloud, no subscription, no internet required after setup. Data never leaves your device.
• Shop Setup & Branding: Add your shop name, owner name, phone, address, and GST — appears on every PDF invoice automatically.

Why Choose Isaf?

Isaf isn’t just another billing app. It’s a complete offline-first mobile management system for modern retail shops and small businesses. With a powerful Mobile App available for Android and iOS, your team can manage everything from product stock to invoice generation to credit tracking — faster, smarter, and without paperwork, internet dependency, or monthly fees. Built for real shop usage — fast, touch-friendly, and always available in your pocket.

Who Should Choose Isaf?

• ✅ Kirana & General Store Owners — Looking to digitize billing and inventory end-to-end.
• ✅ Retail Shop Owners — Managing products, stock, and customer credit daily from their phone.
• ✅ Small Business Owners — Wanting professional invoices and financial tracking on mobile.
• ✅ Developers & Resellers — Wanting a ready-made white-label mobile shop management solution.
• ✅ Multi-branch Shops — Needing a lightweight installable app for each outlet.

What You Get After Purchase

• ✔ Full Source Code — Complete Mobile App source code (React Native + Expo + TypeScript).
• ✔ Installation Guide — Step-by-step mobile app setup documentation.
• ✔ Full App Screens — Bills, Inventory, Udhaar, Customers, Reports, and Settings.
• ✔ PDF Invoice & Statement Generator — Client-side generation, shareable directly from the app.
• ✔ Android & iOS Ready — Build and publish to Google Play Store or Apple App Store.
• ✔ Documentation & Support — Comprehensive guides and dedicated support.

Technologies Used

• React Native + TypeScript: Cross-platform mobile app for Android and iOS.
• Expo: Streamlined mobile development, preview, and build workflow.
• Async Storage / SQLite: Offline-first local data storage — all data stays on device.
• React Navigation: Smooth native-feeling navigation across all app screens.
• jsPDF: Client-side PDF invoice and account statement generation, shareable via WhatsApp, email, or direct download.

Note: This is a fully offline mobile app UI. All data is stored locally on the user’s device. No backend, no server, and no internet connection required.

Changes Log

• Version 1.0 – 2025
• [ADD] Mobile App — Full shop management for Android & iOS
• [ADD] Bill & Invoice Module with PDF download
• [ADD] Inventory Management with categories and stock alerts
• [ADD] Udhaar Book — Credit ledger with PDF account statements
• [ADD] Customer Management Module
• [ADD] Reports & Analytics Dashboard
• [ADD] Multi-language Support (8+ languages)
• [ADD] Dark Mode
• [ADD] GST & Tax Configuration
• [ADD] Multi-currency Support
• [PATCH] Offline-first architecture with local device storage

Support

Thank you for your interest in Isaf! For any support or assistance, feel free to reach out to us at myfacesproduction@gmail.com. Our dedicated support team is available Monday to Saturday and ready to help with any questions, technical issues, or inquiries.

We are committed to providing prompt and reliable assistance to ensure a seamless experience with our product.

OUR SUPPORT MAKES CHOOSING ISAF THE EASIEST DECISION YOU’LL MAKE TODAY!