What are some alternatives?
Launchrock - Setup a viral "Launching Soon" page in minutes to attract potential customers and promote your site's launch.
Unbounce - Unbounce lets marketers build, publish and test landing pages without IT or software. A/B testing and lead gen make it a powerful marketing tool.
LeadPages - LeadPages™ Software is the world's easiest landing page generator. It's the easiest way to build conversion optimized & mobile responsive landing pages.
Instapage - Backed by award winning design and the largest community of conversion marketers on the planet, Instapage builds tools that make landing page marketing easy.
Inbound Now - Build Landing pages, manage inbound leads, and create calls to actions to improve marketing with our Inbound Marketing Plugins for WordPress
HubSpot - HubSpot is an inbound marketing and sales platform that helps companies attract visitors, convert leads, and close customers.