BILLmanager is described as 'highly customizable billing software for hosting and IaaS business with the full scope of functionality for billing, service provisioning, client management & support'. There are more than 50 alternatives to BILLmanager for a variety of platforms, including Online / Web-based, Windows, Linux, Mac and Android. The best alternative is Invoice Ninja, which is both free and Open Source. Other great apps like BILLmanager are Manager (Freemium), Manta (Free, Open Source), FreshBooks (Paid) and Blesta (Paid).
Free Invoicing Software provides the facility of online billing. It will do all work form calculating, formatting, printing and also delivering invoices to the customer. It is a simple and efficient software.
Quicker Quotes lets you create professional-quality quotes and share them with your customers with just a few button presses. Perfect for a variety of businesses including landscaping, drainage, yard maintenance and more!
Manage your business from your smartphone, tablet and computer. Create professional invoices, quotes, track your inventory and costs, all backed up to the cloud and synced automatically between your devices. Trusted by 200.000 small business owners like you.
OpenSourceBilling is a simple web application to create and send invoices, receive payments, manage clients and companies. It generates reports of Item sales, payments, and collected revenues. It supports multi languages and multi currencies.