I’ve used a few mileage tracking apps on my iPhone but my favorite at the moment is Mileage Log by Contrast. It doesn’t have a GPS feature, but I don’t like using GPS for mileage since I almost always have a navigation app on that’s hogging my cellular data.
You can either input your odometer start and finish readings (which, as a Scout, is what I do at the beginning and end of my day), or starting and ending addresses. You can track multiple cars and also track if it’s mileage for business, medical, or charity. And you can customize the amounts as well as add new categories.
Without further a due (is that how you write that phrase?):