Title says it all. What are you guys using to track travel mileage for business purposes?

You probably have an idea about what a stickler I am for detail.

With that in mind, I still write everything in a log book old school. It's actually easier for me. You still have to open the app and tell it if the trips are business or personal. When it starts/ends.

Sure, the apps can be set up to capture all of the trips, but you still have to go back and identify as business or personal.

Having it written down also allows me to go back every month or so and check my calendar for road trips to clients to ensure they are logged. If not, I can go back and fix it easy.

When you say "Apple," are you referring to OS X device (computer) or iOS (iPhone, iPad)? Or, do you want something that syncs with both?