Simple Invoice Manager

Manage invoices, payments, and inventory all in one place with Simple Invoice Manager — the complete billing solution for small businesses and freelancers.

Creating and sending invoices has never been faster. Generate professional invoices in seconds, customize them with your logo and signature, set payment due dates, and add custom fields to capture information unique to your business. Send invoices directly via email, WhatsApp, Skype, or other channels to ensure your clients receive them instantly. Track which invoices are overdue, monitor payment status in real time, and never miss a payment deadline again.

Once payments arrive, record them with ease. The app handles lump-sum payments, partial payments, and combined payments across multiple invoices. You can also log advance payments for future sales and generate signed receipts to send to your clients — keeping your financial records organized and professional.

Beyond invoicing, Simple Invoice Manager gives you full control over your purchases and inventory. Record every purchase, track stock levels, and receive automatic alerts when inventory falls below your minimum thresholds. Choose between FIFO or average cost valuation methods to match your accounting practices, and generate detailed inventory reports that show the real-time value of your stock.

Manage sales and purchase orders effortlessly by marking them as pending, partially fulfilled, or complete. This keeps your supply chain transparent and helps you follow up on outstanding commitments.

Understand your profitability with comprehensive profit and loss reports. Analyze performance by invoice, customer, or product to identify which clients and offerings drive the most revenue. Visual charts and graphs let you spot trends in payment behavior and customer receivables over weeks or months.

Taxes and discounts are handled flexibly — apply them at the line item or total bill level, set multiple tax rates on a single invoice, and use either percentage or fixed-amount discounts.

Keep your data safe by backing up to Dropbox or your device's SD card. Invoice PDFs automatically upload to Dropbox for desktop access, and you can export all invoice and payment data as CSV files to open in Excel for further analysis.

Building your client and product database is simple. Import hundreds of clients and products using Excel templates, or sync contacts directly from your phone book. Create and manage your complete product portfolio in one place for faster invoice generation.

With transaction history and ledger features, you can send detailed payment records to clients — perfect for long-term projects and installment-based arrangements.

Simple Invoice Manager transforms billing from a tedious chore into a streamlined process that keeps your business running smoothly.