Yes, both Portfolio and Unbounce offer a Free Trial.
Portfolio is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Unbounce is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Portfolio Starts at $29/Year whereas for Unbounce Starts at $81/Month when Billed Yearly.
Some top alternatives to Portfolio includes Unbounce, VWO Deploy, SITE123, Wix, 8b, Webstraw, WebsiteBuilder, Format, SiteBuilder.com, Sites, NinjaSites by 500apps, WebSmith, Web.com and Profilify.
Some top alternatives to Unbounce includes Instapage, Lander, Leadpages, Landingi, RallyMind, Swipe Pages, LanderLab and Shogun Page Builder.