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How We Helped a SaaS MVP Cut CAC by 40% in 4 Weeks

When you’re building an MVP, marketing isn’t just about growth — it’s about learning what works without wasting your runway. In this post, we’ll share how we helped an early-stage SaaS founder cut their customer acquisition cost (CAC) by 40% in just four weeks — using lean, data-driven experiments and quick iteration. Even if you’re not ready to scale, this process will help you validate your offer, improve your messaging, and convert smarter.

Soft-focus image of a pink flower.
Soft-focus image of a pink flower.

🧠 The Context


  • Stage: MVP, pre-revenue

  • Team: Solo founder, no marketing hire

  • Goal: 50–100 paying users before raising a seed round

  • Budget: ~$500/month for paid ads

  • Product: A simple B2B tool for freelancers (Chrome-based SaaS)

The founder came to us with a working product, a basic landing page, and early traffic — but high CAC and low conversions.

🔍 Week 1: Diagnose & Simplify

We started with a mini audit:

  • The landing page was long and feature-heavy

  • Ad copy was generic and didn’t highlight user pain

  • Tracking setup wasn’t showing cost-per-conversion

What we did:

  • Rewrote headline + CTA to focus on a specific pain point

  • Cut landing page copy by 50%, added bullet benefits + clear CTA

  • Set up Plausible + Meta Pixel for better attribution

💡 Result by end of Week 1: bounce rate dropped by 17%, and time on page increased by 25%.

🎯 Week 2: Segment the Audience

Instead of one generic campaign, we split users into 3 groups:

  1. Freelancers with clients

  2. Solo consultants

  3. Agency owners

Each ad spoke directly to their goals: saving time, looking professional, or scaling processes.

We also added a mini quiz to the site to identify segment fit → and adjusted copy on-page dynamically using a Framer variable.

💡 Result by end of Week 2: clickthrough rate increased 2.1x, and leads began converting at 8% (up from 3%).

🚀 Week 3: Experiment Fast

With $120 in ad spend, we tested:

  • 3 ad headlines

  • 2 landing page variants

  • 1 bonus offer (7-day trial → 14-day + free onboarding call)

We used Google Sheets to log results daily and updated creatives every 3–4 days.

💡 By end of Week 3: CAC dropped from $41 to $26.

🔁 Week 4: Iterate & Scale Smart


The best-performing segment (freelancers with clients) had the lowest CAC and highest LTV potential.

We shut off the other campaigns and doubled the budget on that one segment.

We also added a founder-recorded video on the page → which doubled demo bookings.

💡 Final CAC: $24.50
🎉 Net reduction: 40.2% from the original $41

💡 Key Takeaways

  • Don’t scale before you segment — talk to one audience at a time

  • Small tests → fast learnings → real savings

  • You don’t need a big team or agency to optimize CAC — just focus

  • Clear copy, fast landing pages, and simple tracking go a long way

Ready to Get Real Traction?

Let’s launch your startup with marketing that actually moves the needle.

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