Everlance - The #1-rated mileage and expense tracking app
ZipBooks - ZipBooks is online accounting software for small businesses. 100% free, forever.
QuickBooks Self-Employed - Track your self-employed income, mileage and tax owed.
Every. - Simplified finances for self-employed people.
MileWiz - Automatic Mileage Tracking
Momenteo - Freelancer accounting and invoicing made simple