billing software expense report management software invoicing project management timesheet BILLING SOFTWARE Abak - Make Every Minute Count, Effortless Times & Billing Software How to evaluate ROI on a Time and Billing software solution? Inside tips from Abak. A certified Abak trainer will showcase all the different ways in which you can generate an interesting return on investment through the use of a Time and Billing Software solution when compared to an excel-based time-sheet entry and invoicing system. He will present the benefits of this software in the overall operation of a business. ABAK has enabled us to improve our productivity quite considerably The flexibility ABAK gives us at the billing stage is exactly what we were looking for Quality Control department, for his top-quality support. ABAK has enabled us to improve our productivity quite considerably, to simplify information management for all our projects and to eliminate duplicate inputs. Billing Software is now integrated into our projects before being transferred to ACCPAC.