Everlance - The #1-rated mileage and expense tracking app
Tour - Automatic mileage tracking with iBeacon + Foursquare support
Venture Cost - Track your travel expenses and discover new places to visit
MileageWise - IRS-proof mileage log web dashboard and mileage tracker app
MileIQ - Track miles driven for tax purposes
NomadWallet - Travel expense tracker for nomads