In short_
WordPress is an open-source CMS with visual block editing and a vast theme and plugin ecosystem. Plugins can provide advanced calculators, conditional forms, funnels and A/B testing. You choose the hosting and extensions; managed hosts can handle much of the infrastructure.
ConvertSite builds interactive sites and pages around native inputs, formulas, conditions and actions. Your team manages calculators, configurators and quote flows in one visual DIY builder, with native analytics, 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
An open publishing platform with extensive extensions
WordPress supports content-rich sites with visual block editing, themes and plugins. With a block theme, the Site Editor lets you design the whole site. Its large ecosystem covers ecommerce, memberships, bookings, forms and many specialised requirements.
Calculator and form plugins can provide visual formula editing, conditional steps and payments. Analytics and testing plugins extend conversion reporting. Self-hosted WordPress gives you a choice of hosting; managed services such as WordPress.com handle hosting, security and core updates for you.
Manage the whole interactive offer in one platform
Build a working customer journey that asks questions, calculates an offer and guides the next action. ConvertSite makes pages, inputs, formulas, conditions and actions native building blocks in a visual DIY builder.
Your team can maintain the site and the connected business rules without assembling separate calculator, form and testing plugins. Native analytics, funnels and A/B testing help you improve the same flow, while the platform manages the underlying hosting.
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.
WordPress
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)
WordPress
Business plan — full features
$53.25
What's missing_
The feature WordPress does not have
WordPress can support sophisticated interactive flows, and some plugins already include a visual builder, formulas and conditional steps.
The difference is the setup you maintain. Choose a theme, host and suitable extensions, then check how the flow, reporting and testing work together. Managed hosting can handle infrastructure and updates, while your chosen extensions still determine the customer experience.
ConvertSite makes the core interactive journey and conversion tools native to one platform. Your team edits the connected offer and its rules in the same visual DIY builder.
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_
A native platform or a site built from chosen extensions
With WordPress...
With ConvertSite...
Examples of what you can build with ConvertSite
Everything you want to know_
Frequently asked questions
Use cases
