Once we upgrade to the gold or silver plan, then opt to change to the HIPPA secure plan, are there any additional costs associated with that?

Once we upgrade to the gold or silver plan, then opt to change to the HIPPA secure plan, are there any additional costs associated with that?

There isn't any additional cost, for JotForm Standard users. With JotForm Enterprise there is an additional fee of $299 per month, which is charged annually up front and will be added to your licensing costs.