I wish everybody would ask questions that are this easy to answer!
The answer is one.
That answer does require a little explanation.
DVDFab Platinum & the Mobile Option, even though they are sold separately, work together seamlessly and seem as one program, which is how I tend to think of them.
They can be bought apart, but the mobile option isn't of much use if your source material has copy protection on it.
Which brings me back to my answer. The combo of DVDFab and the Mobile Option will take care of all your needs (as stated) in the smallest number of packages that can be bought.
Hope that helps.