Cart Conversion Boost is a WordPress plugin that auto-fills ThriveCart checkout fields from Thrive Themes opt-ins, cutting friction and cart abandonment.
Category
Sales
Pricing
Freemium: a free version connects one product, and a Pro version is a one-time purchase of $27 (discounted from $47) that removes the product-connection limit.
Cart Conversion Boost is a WordPress plugin built to close the gap between a Thrive Themes opt-in form and a ThriveCart checkout page. Normally, a visitor fills in their name and email on a lead-capture form, then has to enter the same details again on the ThriveCart order form — friction the site's creator says contributes to cart abandonment rates as high as 71%. The plugin invisibly captures the values entered on Thrive Architect or Thrive Leads forms and auto-fills them into the matching ThriveCart checkout fields, so returning visitors move from opt-in to purchase without retyping anything. It was created by Duncan R-E, who originally built it to fix this leak in his own marketing coaching business before packaging it as a standalone plugin. It ships with a free tier for a single product connection and a one-time-purchase Pro tier that removes that limit, along with setup guides and video walkthroughs to get it installed in about five minutes.
Key Features
Invisible checkout auto-fill — Captures the name and email a visitor enters into a Thrive Themes opt-in form and invisibly auto-fills those same fields on the ThriveCart checkout page, removing the need to retype details.
Thrive Architect and Thrive Leads compatibility — Works with both Thrive Architect and Thrive Leads opt-in forms to capture lead data before checkout.
Email provider support — Designed to work alongside major email marketing platforms including Mailchimp, ActiveCampaign, and MailerLite.
Fast setup — Installs directly as a WordPress plugin with setup guides and video walkthroughs, with the vendor stating installation takes about five minutes.
Free single-product tier — A free version is available that connects the plugin to one product, letting site owners test it before upgrading to the unlimited Pro version.
Pros & Cons
Pros
Solves a specific, well-defined friction point between Thrive Themes forms and ThriveCart checkout
Installs in minutes with no coding required, plus setup guides and video walkthroughs
Free tier lets you try it on one product before committing to the paid version
Works invisibly in the background without changing the look of existing forms or checkout pages
Cons
Only useful to the narrow niche of sites already using both Thrive Themes and ThriveCart together
Free tier is capped to a single connected product
Independent third-party plugin, not officially built or supported by Thrive Themes or ThriveCart
Public pricing and feature detail beyond the homepage/about pages is limited