Unico Invoicing is described as 'The simplest invoicing solution for small businesses to manage invoices, track payments and automate reminders. Spend less time billing your clients, and more time growing your business' and is a Invoicing software in the business & commerce category. There are more than 25 alternatives to Unico Invoicing, not only websites but also apps for a variety of platforms, including iPhone, Android, iPad and Windows apps. The best Unico Invoicing alternative is Summit Finance, which is both free and Open Source. Other great sites and apps similar to Unico Invoicing are Invoice Ninja, Qtansi, FreshBooks and Invoicera.