What are some alternatives?
When comparing Acute Feedback and Carrd Template Marketplace, you can also consider the following products
Ship - Fast, native issue tracking for software projects
Superside - Hassle-free design for Scale-up and Enterprise teams
Carrd - Simple, responsive one-page site creator.
Simple Mockups - Minimalistic devices mockup pack for Sketch & Photoshop
Landing Pages in MailChimp - Easy to build, custom landing pages for free
Zemys Store - Design template and Mockup Marketplace