#1 of 10 Best Cell Finance Apps of 2017 - Concur is an app and suite of software that help businesses automate their financial paperwork to free up time and resources. For small and midsize businesses, Concur offers Concur Expense to manage spending, Concur Invoice to automate accounts payable, and Concur Travel to book travel according to company policies. For larger businesses, Concur mostly markets a more feature-heavy edition of Concur Expense with features that make managing business expenses easier for employees and employers. The Concur Expense app allows employees to submit receipts using their phone. Afterwards, the app automatically files and approves the expenses, saving everyone time and effort.