FreelanceStation is a time tracking app for Mac specifically designed and built for freelancers. It has everything you need to work: easy manual time tracking, client, project and task management, estimate and invoice generation, payment recording and transaction exporting to accounting software.
Qbserve - Freelance time tracking, invoicing, and productivity improvement
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Free-Invoice.co.za - Free Invoice Software | Free online tool that helps small businesses to generate free invoices and manage their contact list. It can be used as an alternative to expensive invoicing software and online invoicing applications
Timemator - Automate your time-tracking and forget about the timer. Forever! Create your rules — tell Timemator which files you’re working on or what applications you use for your work... read more.
Invoice Template - Create beautiful looking invoices in seconds