In short_
Webflow combines a powerful visual Designer, CMS, templates and an app ecosystem. Its AI code components can create calculators and multi-step forms directly inside Webflow, while Analyze and Optimize provide native analytics and A/B testing as paid add-ons.
ConvertSite builds interactive sites and pages around native inputs, formulas, conditions and actions. Your team manages calculators, configurators and quote flows visually, with an integrated analytics suite, funnels and A/B testing.
In short_
Outgrow is a content marketing platform built for lead generation campaigns: quizzes, assessments, ROI calculators that attract and capture contacts.
ConvertSite is built for businesses that need to qualify buyers, show real-time pricing, and close sales without a sales call.
If you sell something with variable pricing or complex configuration, ConvertSite is purpose-built for that. If you're running content campaigns and need branded quiz funnels at scale, Outgrow has the depth.
The real purpose_
What each tool is actually built for
Flexible site design, CMS and custom components
Webflow’s visual Designer supports responsive layouts, reusable components and CMS-driven pages. Its extensive template library and app marketplace give teams many ways to start and extend a site.
AI code components can generate calculators, interactive forms and other stateful experiences inside Webflow. Teams can refine components with AI or code, edit styling visually and configure exposed properties. Analyze provides native engagement insights; Optimize adds native A/B testing, personalisation and AI optimisation.
Keep the customer flow and business rules together
Create an interactive site that helps visitors choose the right service, configure an offer or get a quote. Pages, inputs, formulas, conditions and actions work together as native ConvertSite building blocks.
Your team can change a rate, calculation or conditional step in the visual DIY builder, without a separate calculator or form plugin. Native analytics, funnels and A/B testing let you measure and improve the same customer journey.
The details_
Feature comparison
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Breakdown_
Plans & pricing
ConvertSite
You build for free on the Free plan (all components, free AI building via MCP, no publishing).
Starter at $25/month unlocks publishing, analytics, and submission emails.
Builder at $50/month adds your own custom domain and Zapier webhook.
Business at $100/month adds full Zapier, HubSpot, and removes ConvertSite branding.
Webflow
ConvertSite plan
Price
Key features
Free
$0/mo
250 AI credits, all components, build and test, no publishing
Starter
$25/mo
500 AI credits, publish live, submission emails, analytics, funnels
Builder
$50/mo
1,000 AI credits, custom domain, Zapier webhook, localisation, custom API
Business
$100/mo
2,500 AI credits, full Zapier, HubSpot, no ConvertSite branding
ConvertSite
Business plan — full features
$100
20% off annual. Free to build on any plan.
All tools: calculators, quote forms, quizzes
HubSpot + full Zapier integration
No ConvertSite branding
2,500 AI credits/month
No submission or lead caps
Documents add-on available (+$50/mo)
Webflow
Business plan — full features
$430
What's missing_
The feature Webflow does not have
Generating a calculator is useful. Keeping its business rules easy for your team to change is the next question.
Webflow’s code components can expose visual settings and support visual styling. The available pricing and branching controls depend on how the component was implemented; additional behaviour can require AI or code changes.
ConvertSite provides connected inputs, formulas, conditions and actions as native visual building blocks. Your team manages the whole quote journey and its rules together, with native analytics, funnels and A/B testing alongside it.
What a customer actually experiences
A visitor completes your pricing calculator, sees their quote on screen, then immediately receives a branded PDF proposal in their inbox: itemised, on-brand, and ready to share with their team. No manual follow-up. No "we'll send a quote within 24 hours." The sale moves faster because the buyer has everything they need the moment they finish the tool.
The right tool for the job_
Who should use each tool
The key difference_
Custom component flexibility or native flow controls
With Webflow...
With ConvertSite...
Examples of what you can build with ConvertSite
Everything you want to know_
Frequently asked questions
Use cases
