Expensify - Import expenses directly from a credit card to create free expense reports quickly. Approve reports online and reimburse directly to a checking account with one click.
Everlance - The #1-rated mileage and expense tracking app
Abacus - Expenses without the 'expense report'
Tour - Automatic mileage tracking with iBeacon + Foursquare support
Zoho Expense - Automate your expense reporting process and streamline the approval flow.
MileWiz - Automatic Mileage Tracking