ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.
myBillBook.in - No.1 Billing Software for Small Businesses in India, Free Download. 60 Lakh+ Businesses Created GST Bills & Invoices with myBillBook Billing Software and increased Business. GST Billing Software for Bharat.
BillGrid.com - BillGrid is an easy to use online invoicing, billing and expense management system that will save you time with tracking clients projects, expenses, invoices and payments.
Treflo - Treflo is the platform that helps you to design the products for your business and also guides you to manage the accounting and financial aspects of the business.
MinuteDock - Web-based time tracking software designed to integrate with the Xero accounting package.
SaralBill - SaralBill is accounting software that is used to manage the accounting operations for small to medium size businesses.