DEWAWI is described as 'web based and simple to use merchandise management system including customer relationship management. The software is designed to increase the productivity and effectiveness of the business processes at small and middle size businesses'. There are eight alternatives to DEWAWI for a variety of platforms, including Online / Web-based, Windows, Linux, BSD and SaaS. The best alternative is Invoicera, which is free. Other great apps like DEWAWI are Simple Invoices, sevDesk, invoicely and Invoice Dude.
Invoicera is an online billing software which is specifically designed keeping simplicity and online invoicing convenience in mind, while at the same time offering the best of the breed invoicing features.