Can I charge by categories and/or some set for free?
Yes, using our powerful feature rich classifieds script, you're able to set price by category or/and subcategory. As well as you can set certain categories/subcategories for free and some paid. Depending on your requirements, it can be done very easily from the user-friendly admin panel of the classifieds script.
To check in live demo, just login to the admin panel then click on "Categories" then click the PENCIL icon next to already added category or just add a new category by pressing "ADD NEW" to view the option to set price for posting ad under this category. Setting it zero will make the category free to post ad.