The main purpose of developing Purchase Sales Stock Management Software is to provide a billing system for a company that will assist in preparing the bills, keep records of the raw materials, provide stock analysis, employee details, employee attendance and dealers details. This project will manage the sales and purchase activities which are done in the company, maintaining the stock details and the records. The details regarding attendance, salary and purchase details are also maintained. The user will consume less time in calculation and the sales activity will be completed within minutes whereas manual system will make the user to write it down which is a long procedure and it also consumes a lot of time. This system reduces paper work and the user can spend more time on monitoring the company. This product aims to be user friendly and easy to use.

There are several popular Purchase Sales Stock Management software that can be used for managing the inventory, sales, and purchase of a business. Some of the most popular ones include:

1. Zoho Inventory: Zoho Inventory is a cloud-based inventory management software that helps businesses manage inventory, track sales and purchase, and fulfill orders.
2. TradeGecko: TradeGecko is a cloud-based inventory management software that helps businesses manage inventory, track sales and purchase, and fulfill orders.
3. inFlow Inventory: inFlow Inventory is a desktop-based inventory management software that helps businesses manage inventory, track sales and purchase, and fulfill orders.
4. DEAR Inventory: DEAR Inventory is a cloud-based inventory management software that helps businesses manage inventory, track sales and purchase, and fulfill orders.
5. Unleashed: Unleashed is a cloud-based inventory management software that helps businesses manage inventory, track sales and purchase, and fulfill orders.
6. SAP Business One: SAP Business One is an enterprise resource planning (ERP) software that provides businesses with a comprehensive solution for managing inventory, sales and purchase, and financials.
7. QuickBooks: QuickBooks is an accounting software that also provides inventory management and purchase/sales order management features
8. Oracle NetSuite: Oracle NetSuite is an enterprise resource planning (ERP) software that provides businesses with a comprehensive solution for managing inventory, sales and purchase, and financials.

Note: The choice of the software depends on the specific requirements of the business and their size, complexity, and budget.