Convertkit is an email marketing automation tool and is a necessay tool for blogs or content heavy websites which relies on subscriptions to grow their business. You get * Email subscription forms to collect emails from your website * Create your own HTML email from Convertkit editor * Tags and Segments where you can send them different emails basis their tags or the segment in which they fall * Multiple integrations to platforms like Shopify to make your life a little easy
Convertkit has an open and transparent pricing. The basic plan starts from $29 for 1000 subscribers. They do not blanket put you in one of the pricing window with a considerable jump of 100-1000 dollars between two plans. You can just choose your pricing based on the number of subscribers you have which is highly efficient and transparent.
No, Convertkit is not a CRM. It is an email marketing automation tool.
Converkit gives you a completely free one month trial upto 1000 subscribers. Beyond that the basic pricing starts from $29 for 1000 subscribers.
Yes, you can use Converkit with SquareSpace. You can just create an email opt-in form in Converkit and you will get a JS code which you can integrate with SquareSpace. You can also do it via Zapier.