These programs cost money. However, the research is often times deeper than the free versions can give. But you may purchase what you need and add it to your system specifically to make it yours. Be careful, however, that you look at the costs associated with what you are getting. Some of these developers have very strict guidelines for selling and reselling programs. 

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Please note: Many free ones also give an opportunity to donate to help them cover costs and improve. If you feel led, please donate to these ministries.