My Business is free Wapar/Vyapar/Business management software.
It supports multi user and offline/online support.
It’s a complete solution for small or medium business management. It can be used for invoice, Billing ,inventory management as well as accounting app.This Bill Book allows you to handle your customer accounts, vendor accounts, stock ,cash in hand, multiple bank accounts and many more.

No matter what kind of business you are running you can customize My Business according to your needs. You can also use it for your daily expenses, and income management.

Below are the key features.
You can sell , purchase, return and edit existing transactions.
You can generate reports for Day , Week, Month, Year or any custom date range.
You can generate different reports like Sales, Purchase, Stock, Profit Loss, Customer Ledger, Vendor Ledger, Investor Ledger, Expense, Extra Income, Cash In Hand History
You can generate PDFs of any report.
By using this business management software you can create multiple payment options. Like Banks, Checks, Cash etc. You can also transfer payment from one account to another.
You can set multiple product rates like retail sale rate, whole sale rate.
You can make Retail sale, Wholesale translation with one click.
You can export all your transactions in a .XLS sheet for further operations using your desktop system.
You can print bills/invoices using a wireless thermal printer.
You can send PDF bills via Whats app/email etc. to customers or vendors.
My Business helps you to manage Udhar Book/Loan Record
You can generate Ledger of Customer, Vendor and Investor as well.
Profit Lose on Average purchase and total purchase cost both are available.
You have two types of Balance sheets for complete insight of your business.

Additional features.
Multi user
Offline and online supported
Filters on Transaction.
Barcode scanner.
Manage multiple vendors (need to be enabled from settings.)
Cash settlement to and from Customer/Vendors.
Send sms to customers on new transactions.