Do You Need a Mileage App, or Will a Spreadsheet Do?
An app removes the need to remember. It does not remove the work — it moves it, from fifteen seconds in the truck to a review session you are equally likely to skip.
Commuting vs Business Miles
The rule people half-remember is "you can't deduct your commute." True, but the word commute is doing far more work in that sentence than most people realize.
What Your Truck Actually Costs You Per Mile
Most people price their driving at the cost of gas. Gas is usually under a third of what a mile actually costs, and the rest arrives all at once, eighteen months later, as a repair bill.
The Mileage Deduction Most Self-Employed People Underclaim
Almost nobody keeps a mileage log during the year. They reconstruct one in April from memory and a calendar, and they underclaim - because a reconstruction is always conservative and always incomplete.