What are some alternatives?
When comparing Mailbook and Landing Pages in MailChimp, you can also consider the following products
Ship - Fast, native issue tracking for software projects
Carrd - Simple, responsive one-page site creator.
Landing Pages by Viral Loops - Easily create a landing page for your referral campaign ✌️
SaaS Pages - 900+ Screenshots of the best SaaS landing pages
Cruip - Free landing page templates for startups
Unicorn Platform 🦄 - Modern landing page builder for startups