A simple and fast invoicing / invoicing solution using the bootstrap templating system allows you to create products and items, create customers, users, invoices, quotes and receipts. It also has some other great features, one of which is instant invoice calculation for items, quantities, discounts (fixed or percentage), subtotals, shipping, taxes / VAT and totals without any effort! It can be used for any type of invoicing from eCommerce invoicing, general in-house invoicing to product and service invoices. There are plenty of other features in the system, so check out the demo or look below to see its full potential.