If you’re married and filing jointly, you can share your Hurdlr account with your spouse so you can both track your mileage. To do so, you’ll just need to log into the same Hurdlr account on your respective devices. Hurdlr will track the trips detected by each of your phones.
If you are driving in the same car at the same time and both have automatic tracking enabled, it will track the trip on both devices resulting in duplicate trips. To avoid duplicating the trip, you can either delete it or one of you can turn off the automatic tracker before driving, so the trip isn’t tracked twice.