Mileage tracker has the following features:
1) Start auto-tracking your mileage with one single tap.
2) Unique 3D flyovers of your journeys (to midpoint for free users, full flyover for Pro users)
3) Designed for maximum efficiency, and with a simple, straightforward user interface: point, click, done.
4) Suggest odometer values: based on the trip's locations (either auto-tracked or added manually) the app will suggest the mileage for the trip, and will pre-fill odometer values. (You can manually override these.)
5) Support for round trips. Most trips are round trips and you can set these with a simple switch. No need to add another trip just to get you home.
6) Export to CSV. Straightforward to download in Excel or an other spreadsheet app. Includes a running mileage total.
7) Import GPX files. Supports both GPX routes and GPX tracks. Pro version only.
Download the free version now, which supports three trips to give you an idea of what the app is like. Upgrade to the Pro version with a one-off in-app purchase.