The only one that I have ever used is FastDraw by FastModel Sports. It is a yearly subscription, I can’t remember the exact price but it seems like it works out to around $120 or so a year.
There are some things that are cumbersome about drawing up your sets on a computer. I think it is easier to draw stuff up on an iPad but you have to pay extra for iPad use and it is not as easy to cycle through the menus on an iPad as it is on the PC.
Finding your plays can also be somewhat confusing. After you have saved them it just is not a real clean app and can make it difficult to cycle through to find what your are looking for.
The best thing about it is the end product. You can print off a very clean looking playbook that is nearly organized with any notes that you want to add on each frame. I do wish it was more user friendly though.