The Lean Conversion Stack
Conversion optimisation before you need Unbounce — the starting point for teams ready to test.
What's in the stack.
Landing page builder with built-in conversion guidance, A/B testing, and pop-up capture.
from $37/mo (Standard) — check pricing
A/B testing and conversion optimisation platform — test any element on any page, no code required.
from $0/mo (Free) — check pricing
Real-time social proof notifications — recent signups, live visitor counts, and conversion events.
from $29/mo (Basic) — check pricing
Exit-intent pop-ups, sticky bars, and countdown timers that capture leads before visitors bounce.
from $29/mo (Pro) — check pricing
The rationale.
The Conversion Stack uses Unbounce — the more powerful, higher-cost landing page platform with Smart Traffic AI and deep A/B testing. This stack is for teams at an earlier stage: enough traffic to test, but not enough to justify $74/mo on Unbounce before you've proven the conversion rate problem is worth solving. Leadpages at $37/mo builds and publishes conversion-focused landing pages with built-in conversion coaching (it shows you how your page benchmarks against similar pages in its database). VWO tests any page on your existing site — including Leadpages — on a free tier that covers most SMB traffic volumes. Proof layers social proof notifications on top. Hello Bar captures email from site visitors before they leave. The stack costs less than half the Unbounce version and covers the same conversion optimisation workflow — upgrade to Unbounce when you're spending $5,000+/mo on paid traffic and Smart Traffic's automatic variant routing justifies the price.
The handoffs.
Install VWO's SmartCode snippet inside Leadpages' page-level Custom JavaScript field. VWO can then A/B test any element on the Leadpages-hosted page — headlines, CTAs, images, form placement — using VWO's visual editor, without rebuilding the page in Leadpages for each variant.
When VWO identifies a winning variant at 95% confidence, rebuild that winning element set as the permanent default in Leadpages. This is a manual handoff: VWO produces the insight; Leadpages is where the change ships to production.
Install the Proof pixel in Leadpages' Custom JavaScript field. Proof reads conversion events from the page and begins displaying recent signup notifications within minutes. No API configuration required beyond the pixel.
Connect Hello Bar to your email platform from Hello Bar's Integrations tab. Captured emails sync in real time to your list — no Zapier required for major ESPs including ActiveCampaign, GetResponse, and Mailchimp.
Where tools overlap.
Where AI speeds this up.
Use AI to generate 8–10 headline and CTA variants per page before testing — feed VWO a multi-variant test from day one rather than one-change-per-month. Leadpages' AI writing assistant can generate page copy from a brief; treat it as a first draft and refine for brand voice before publishing.
What to watch for.
- Leadpages Standard includes 1 custom domain. If you're running campaigns across multiple brand domains or sub-domains, the Pro plan ($74/mo) is required. Verify your domain count before choosing a plan.
- This stack is explicitly the entry point for conversion optimisation. When your paid traffic spend exceeds $5,000/mo and you're running multiple concurrent A/B tests, migrate to the Unbounce-based Conversion Stack — Unbounce's Smart Traffic and design freedom justify the higher cost at volume.
- VWO's free tier covers up to 50,000 monthly tracked sessions. Most SMBs never exceed this. But verify your monthly session count and watch the threshold as traffic grows — the paid Growth plan is $199/mo.
- Hello Bar's free plan caps monthly lead collection at a low threshold. Budget for the Pro plan ($29/mo) before the cap starts limiting your list-building programme.
How we scored this stack.
You get the deal, we get a referral — it funds the research. Same tool, often a better price. Full detail on how we make money.
Last reviewed: 2026-06-12
Evidence basis: Documentation Verified