Marketcircle today announced the availability of Billings 2.5, the latest version of its software designed to track time and expenses, and create detailed, customized invoices, project estimates, and reports. Version 2.5 offers a more visual User Interface (UI) that matches client workflow and seamless integration with Marketcircle business productivity stable-mate Daylite 3 (version 3.2.3, also available today). Third party Mac programs — starting with Merlin 2 from ProjectWizards GmbH — can also take advantage of the new Billings Exchange Format (BEX) to integrate with Billings 2.5. Billings is priced starting from US$59.