Hi there, schumackerk.
I appreciate for taking the time to post here for assistance.
We have multiple third-party apps that you can check out for tracking mileage.
I'd recommend visiting our QuickBooks App Store. This is where you can see what app meets your needs. You also have the option to search for a specific category and can see details and pricing as well.
Please see attached screenshot:
If there's anything else I can help you with, please let me know. I'd be happy to assist you anytime.