About CalcStack
The Lead Generation Platform for B2B and B2C
CalcStack is an interactive content platform for lead generation. Businesses embed calculators, scorecards, quizzes, and benchmarks on their websites to convert visitors into qualified leads. Every tool captures the visitor's inputs alongside their email, giving sales teams rich context before the first call. Built as a solo-founder bootstrapped product serving 28 industries.
Last updated: March 2026
The problem
Your traffic leaves without a trace
You spent $5,000 on ads last month. Google Analytics shows 8,000 visitors. Your CRM shows 47 form submissions. That is a 0.6% conversion rate. The other 7,953 visitors left without giving you a name, an email, or any signal about what they needed.
Your contact form asked for commitment before offering anything in return. It said "tell us about your needs" when the visitor had not yet figured out whether you could help. According to Ruler Analytics, the median B2B website converts at 2.9% across industries. For most businesses, that means 97 out of every 100 visitors are gone before sales even knows they existed.
The fix
Give the visitor something useful before asking for anything
CalcStack replaces the cold ask with a fair exchange. Instead of a contact form, the visitor finds an interactive tool on the page. A retirement calculator that shows their savings gap. A cost estimator that produces an instant quote. A scorecard that grades their operational readiness against industry benchmarks.
The visitor enters their own numbers, sees a personalized result, and then the email gate appears. By that point, they have already received genuine value. Sharing an email feels like a fair next step, not a leap of faith. The business gets a lead with every input the visitor entered, their score or result, and the context to have a relevant first conversation.
Industry research on interactive content (Demand Gen Report, Content Marketing Institute, Backlinko) consistently shows the pattern: businesses that give visitors something to do, not just something to read, capture significantly more data fields per lead than static contact forms.
| Category | Value |
|---|---|
| Example ad funnel (8,000 visits) | 0.6% |
| Median B2B website | 2.9% |
Source: Ruler Analytics B2B conversion benchmarks, 2026Visitor-to-lead conversion rate. The funnel figure is the worked example above; the median is the cross-industry B2B benchmark.
What makes CalcStack different
Three things no competitor offers together
Value before the ask
The visitor gets a real result before any email gate appears. A retirement calculator that shows the savings gap. A cost estimator that produces an instant quote. A scorecard that grades their readiness. The email request comes after the value, not before it.
Data-enriched leads
Every lead arrives with their inputs, scores, and buying signals attached. A solar installer sees the visitor's roof size, monthly bill, and payback estimate. A SaaS company sees the prospect's team size, current spend, and ROI projection. Sales teams get context before the first call.
One platform, not five
Calculators, scorecards, quizzes, decision engines, benchmarks, graders, AI generators, polls, surveys, chatbot delivery, and product recommenders. All under one embed, one dashboard, one subscription. No stitching together a quiz plugin, a calculator widget, and a form builder.
The Numbers
563+
Interactive Tools
7
CRM Integrations
11
Platform Embed Guides
Every tool in the CalcStack library was built from real client conversations. The inputs, benchmarks, and result formats reflect what actual businesses need to qualify leads, not what looks good in a demo.
The founder
Built by a Founder, For Founders
CalcStack is built by Adam, a solo founder based in the US. After watching businesses spend thousands driving traffic to websites where 97 out of 100 visitors left without a trace, he built CalcStack to fix the conversion layer that contact forms were failing at.
The thesis: give visitors something useful before asking for anything in return. A retirement calculator that shows the savings gap. A cost estimator that produces an instant quote. A scorecard that grades their readiness. When the visitor gets genuine value first, sharing an email feels like a fair exchange, not a cold ask.
Every feature in the platform exists because it solves a real problem a business owner described. The tool library grew from those conversations. The embed system was built so any business could add interactive content in under five minutes, regardless of their website platform. The lead enrichment pipeline was built so sales teams stop receiving bare email addresses and start receiving context.
Get Started
CalcStack takes 2 minutes to set up. No credit card required. Pick a template, brand it to your site, embed it, and start capturing leads.
Explore CalcStack
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Questions
Frequently Asked Questions
Who built CalcStack?
CalcStack was built by a solo founder to solve a specific problem: businesses need interactive content on their websites to capture leads, but existing platforms charge enterprise prices. CalcStack makes it accessible to every business.
How is CalcStack different from form builders?
Form builders collect data. CalcStack delivers value first: benchmarks, scores, recommendations, grades. Then it captures the lead. Visitors are far more likely to share their email when they have already received personalized results.
What industries does CalcStack serve?
CalcStack serves every major industry. B2B verticals include SaaS, marketing, sales, finance, HR, ecommerce, coaching, hospitality, construction, nonprofit, healthcare, manufacturing, and IT services. B2C verticals include home services, solar, real estate, events, automotive, insurance, education, cleaning, wellness, legal, personal finance, dental, travel, beauty, and pets.
How many tools does CalcStack offer?
Hundreds of interactive tools across 11 content types: calculators, scorecards, decision engines, benchmarking tools, graders, interactive quizzes, AI generators, polls, surveys, chatbot delivery mode, and product recommenders. All ready to embed with one line of code.
How much does CalcStack cost?
Try any tool instantly on calcstack.net. The embed platform for businesses starts on a paid plan that includes lead capture. Higher tiers add white-label, CRM integrations, and full PDF reports. See the pricing page for current plan details.
Where is CalcStack based?
CalcStack is a US-based company. All data is processed in compliance with GDPR and applicable data protection laws. The platform is hosted globally for fast performance worldwide.
Start Capturing Leads Today
No credit card required. Embed your first interactive tool in under 60 seconds.