I have a friend driving a 17 foot U-Haul truck, all her possessions and her daughter to Seattle, WA.
The U-Haul truck overheats when it encounters hills. She has currently made it to S. Dakota, but
she will encounter hills in the near future. She's got a Tom Tom GPS and an Android phone.
What can she use to help choose the FLATTEST road route from this point forward?
She simply cannot be sidelined by truck mechanical problems. Is there a free/low-cost & user-friendly
Android app you can recommend? Is there a feature on her Tom Tom that considers topography??