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For SaaS growth & marketing teams

Same AI CRO engine.
Different funnel.

Spar tests the pages between visit and paid. Landing page, pricing page, signup flow. The marketing funnel optimization your product team isn't doing.

For B2B SaaS, PLG, and any SaaS team optimizing top-of-funnel and signup conversion.

The marketing funnel is the neglected funnel.

Your product gets shipped on. Your ads get optimized weekly. The pages between visit and paid sit untested for quarters at a time.

Nobody actually owns the marketing funnel.

Product owns the in-app experience. Performance owns paid acquisition. The landing page, the pricing page, the signup flow belong to everyone and nobody. Conversion has been flat for a year and the backlog never gets touched.

The pricing page is hardcoded.

Your highest-leverage page hasn't been tested in eight months. Card order, defaults, copy, plan structure, all set once and forgotten. Every quarter someone says we should test the pricing page. Every quarter the next feature launch wins.

Your experiment stack tests inside the app.

Statsig, LaunchDarkly, Amplitude experiments are built for product flags and in-app changes. They were not built for marketing site tests. So the marketing site doesn't get tested.

How Spar maps to your funnel

One real test idea per stage.

Walk a SaaS funnel from visit to paid. At every stage Spar covers, here's what a test idea actually looks like. The Activate stage is intentionally left to your product team.

  1. 01
    Visit
    Hero CTA copy treatment
    Start free trial vs. Get a 14-day pass vs. See it in action.
    Runningmockup + 18-line JS variant
  2. 02
    Engage
    Social proof position
    Customer logo wall above the fold vs. inside the second section.
    Wonmockup + DOM reorder script
  3. 03
    Signup
    Signup form length
    Five-field signup vs. two-field email-first with progressive profiling.
    Runningmockup + 31-line form variant
  4. 04
    Activate
    In-app activation flow
    First-action onboarding, empty states, aha-moment timing.
    Spar tests marketing pages rather than in-app flows. Your product team owns this stage.
    Out of scopeOwned by your product team
  5. 05
    Paid
    Pricing page default
    Annual default vs. monthly default with annual savings callout.
    Draftingmockup + price-card reorder

Illustrative test ideas. Spar generates the actual ideas tied to your GA4 data and Clarity sessions. The Activate stage is intentionally out of scope: Spar tests marketing pages rather than in-app flows.

Ship tests every week instead of every quarter.

Each feature below cuts one of the costs that keep your testing cadence slow.

AI generates marketing-site test ideas from GA4

Spar reads your funnel data and ranks every page type against a rule library. The backlog reflects real drop-offs instead of the loudest opinion in the standup.

Cuts:Backlog-building cost

Variants ship as production-safe JS

Every idea comes with a visual mockup and production-safe JS your team can review, edit, and ship. The marketing site stops competing with the product roadmap for the dev queue.

Cuts:Dev-queue cost per test

Pricing-page tests as a first-class workflow

Reorder cards, swap monthly and annual defaults, test plan copy, restructure tiers. The page that drives your highest-leverage conversion is no longer hardcoded.

Cuts:Time-since-last-pricing-test

Plain-English exec reports

Frozen, share-link snapshots your CEO and CFO open in a browser. Six default sections: intro, executive summary, health score, what changed, key learnings, CRO priorities. No dashboard fishing.

Cuts:Weekly recap deck cost
Where Spar plugs in

Built for the surfaces that drive pipeline.

Spar owns the top of the funnel: marketing site, pricing, signup. Your existing product stack keeps running everything inside the app. Together they ship more.

Spar covers

  • Marketing site pages (home, features, use cases)
  • Pricing page and plan-selection flows
  • Signup form and signup flow
  • Blog conversion CTAs and lead magnets
  • Comparison and competitor pages

Your existing stack keeps

  • In-app activation flowsYour product team
  • Product feature flagsLaunchDarkly, Statsig, or your existing system
  • Behavioral analytics inside the productAmplitude, Mixpanel, or PostHog
  • Lifecycle and transactional emailYour ESP

Already running Amplitude or LaunchDarkly? Spar slots in next to them. We compound the top of the funnel while your existing stack keeps running the rest.

Other teams

Spar for other kinds of team

Each one says, plainly, what Spar does for that shape of work and which plan it lands on.

Pro

Founders

One store, no growth team, lots of leverage on $500.

Pro

In-house ecommerce

Lean DTC team. Spar carries the audit, idea, and mockup load.

Agency

Agencies

Multiple clients in one workspace. Per-store math we work out on the call.

Enterprise

Shopify Plus

Procurement-ready, DPA on request, founders in Slack for 90 days.

Test your landing page. Test your pricing. Test your signup flow.

Drop in your URL. Spar audits the marketing funnel and hands back a prioritized backlog of test ideas, with mockups and JS, in minutes.

See an example site

Self-serve for growth teams. Demo for bigger orgs.