Truckers Helper has a driver's version
www.thetruckerhelper.com . I have checked out the larger program. The fleet or carrier program has a lot in it but some find it a little complex to use. One that I prefer is Trucknpro
www.trucknpro . It can be used by a company driver or owner operator with a number of trucks. One of the main features that I like is the simplicity. You can plug in all of your trip information and see the profit and loss on each trip and year to date. You can use as many or few features of the program as you wish. If you plan on buying a truck later, you could track all of your operational costs in this program and it would give you an idea of what it would cost to run your own truck. Both have online demo's or trial version so that you can check them out before buying. I have recommended trucknpro to a number of owner operators and most seem to like the program.
