In the end its not wrong to have a combination of major apps to get the job done.
If Softplan gives you something you need that you cant get done with Chief yet, then it may be good to have both?
I play guitar and I use Kramer, Fender, Gretsch and Gibson they give me different tones and some are good for playing the rhythm and others for lead and some for both.
So you don't have use one over the other if choose to use more than one.