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

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.  

(Only For Premium Category Products !)

1. All digital products are the most recent version, with no possibility of free updates. After payment, you can request an update to the most recent version for 5 days if a new version is released. We free support within 5 days.

2. If a license is required (Excludes WHMCS license , we provide only method not license), please contact us via email or ticket for assistance with activation. Our license is only valid for activation and does not include support.

3. We provide Mobile, PHP script installation services for $19.90 / ₹1700. Please create a backup after installation as we do not support re-installation. For mobile app source code, we do not offer installation services.

4. If you have any questions, please contact us by email [email protected] or create a ticket on this page

5. Please note that any digital products presented on the website do not contain malicious code, viruses or advertising. You will receive the original files from the developers. We do not sell any products that have been downloaded from other websites.

6. The response time can last up to 6 hours.

(Only For Membership Category Products !)

Benefits of our Membership Plans

• Instant access to all plugins and all themes including all future releases
• Unlimited domain usage
• Regular Updates as of when available. Usually, updates are released daily.
• Before purchasing, please read the Terms and Conditions & Refund Policy.
• If you have any questions, please first read the FAQs.
• If you haven’t found the answer to your question, please contact us, and we will respond ASAP.
• Please note that any digital products on the website do not contain malicious code, viruses, or advertising. We buy the original files from the developers. We do not sell any products downloaded from other sites.
• Buy or download for FREE by subscribing to our VIP Membership Plan. Join the club of more than 1100+ happy members. This is the same theme as sold by the developer.

Updates:

• We offer frequent updates for one year from the date of purchase. After this period, you have to purchase the item again to receive further updates, we also offer lifetime updates as a second option.
• We regularly update products as soon as we are notified about an update, we go and download it from the author and update it on our site, but In case the current version of the product is not the latest, You can request an update for the product by contact form.
• We send regular emails advising when products have been updated so please be sure to provide an active email address when you sign up.

Support:

• Our support team is available 24/7, if you have any questions or need help in installing or configuring digital products purchased on the website, please don’t hesitate to contact form.
• Please note that we are not developers of the provided products, so our technical support capabilities are limited. We do not change product functionality and do not fix developer bugs.

For more information please read FAQs & About Us.

(Only For WHMCS Category Products !)

• We Only provide WHMCS Module, how you can  nulled any module step only !
• Instant access to all plugins and all themes 
• Unlimited domain usage
• Regular Updates as of when available. Usually, updates are released daily.
• Before purchasing, please read the Terms and Conditions & Refund Policy.
• If you have any questions, please first read the FAQs.
• If you haven’t found the answer to your question, please contact us, and we will respond ASAP.
• Please note that any digital products on the website do not contain malicious code, viruses, or advertising. We buy the original files from the developers. We do not sell any products downloaded from other sites.