A free program for Android, by Vyapar Tech Solutions.

Vyapar is an app for businesses to manage their accounts and make payments. It also provides them with insights into their business operations. Vyapar is an easy-to-use app with a user-friendly interface.

It allows users to create and send invoices, send reminders to recover payments, record business expenses, check stock inventory, and generate all types of GST bills and reports. Users can customize the format of the invoices, and also add their signatures and other details. It also allows users to share their invoices and other documents with their customers and vendors.

Vyapar is a powerful app that provides users with the ability to do many things.