LeadPages is an online tool that you can use to collect email subscribers. That is the main function of LeadPages, and they provide tons of purdy templates that you can use for lead magnets, webinars, and landing pages in order to grow your email list. LeadPages also has templates for things like sales pages — it’s a very robust tool! I literally use it everyday.

A sales funnel illustrates your customer’s journey and works by increasing the level of engagement and trust in each interaction with your prospect. It typically contains six stages, starting with awareness and ending with loyal customers. Each stage has more meaningful activities than the last. While not all prospects will reach the end of the funnel, those who do are actively engaged and therefore more serious about buying your product or service.
Pros: Funnels involve many moving parts, pages, and pieces. Having designed these for years myself, I expected Clickfunnels to be another newbie tool, but it's so so much more. You can easily set up funnels for specific markets, tying them together and tracking in a way that's visual (not Kanban, but close) and easy to understand. Instead of complex interfaces, you have an easy step by step way to get things going quickly. As an experienced user, I was impressed by the value this delivers for people regardless of skill set. There's so many smart elements - for example, preview your page and it shows you the version regardless of cache, so you're not stuck emptying your browser. Few years ago this would have cost you thousands to set up individually, and left you needing tech assistance. Clickfunnels eliminates that and makes it so even a beginner can use this tool.
For example, when a customer finds you organically through a Google search for example, that means you have some element of authority. When you have authority, prospects are more likely to enter into your funnel because they know that if they found you relevantly, that whatever it is that you're providing must be of a great value. That's just the nature of SEO and organic search. 
Now your marketing automation funnel is giving you a boost at every stage: It responded within five minutes of their first contact, and that helped get you the chance to make your pitch. Now, after the pitch, you're ready to stay in contact and respond to objections in a friendly, targeted way. (And if they love the pitch, automation can help you stay in close touch until closing.)

Clickfunnels: Review, Demo, Pricing and Features: