Supascribe

Substack newsletter writers rely on Substack's default subscribe form and profile page, which the site frames as basic and limited for conversion. Writers who want more sign-ups need branded landing pages, customizable embeds, popups, and performance tracking, none of which Substack provides natively. Without these tools, writers have less control over design, timing of subscriber prompts, and visibility into what is actually driving sign-ups.

Supascribe provides no-code growth tools that sit alongside an existing Substack newsletter rather than replacing it, keeping subscribers, posts, and payments on Substack. It offers a subscribe form embed, a newsfeed embed showing a reader's best articles, a behavior-triggered popup modal, and a landing page builder for capturing subscribers on a branded, custom-domain page. The product includes analytics on views, clicks, and sign-ups, and integrates with tools like Zapier, with an API available on its top-tier plan. Writers set it up by pasting a code snippet into any website platform, including WordPress, Squarespace, Wix, Carrd, or Framer.