Yes, both Unbounce and Optiin offer a Free Trial.
Unbounce is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Optiin is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Unbounce Starts at $81/Month when Billed Yearly whereas for Optiin Starts at $7/Month when Billed Yearly.
Some top alternatives to Unbounce includes Instapage, Lander, Leadpages, Landingi, RallyMind, Swipe Pages, LanderLab and Shogun Page Builder.
Some top alternatives to Optiin includes Unbounce, Leadpages, Landingi, ClickFunnels, FlyerFunnel, GrooveFunnels, Way, Cloud Funnels, Funnelair and InterFunnels.