Klaviyo & GDD: Why Email Marketing Still Packs a Punch

You’ve likely heard of Mailchimp, Hubspot, Constant Contact, Klaviyo, and Campaign Monitor to name a few… Yep they are all email marketing tool (of sorts). So it might not be the newest channel in the digital stack—but when it comes to ROI and nurturing real customer relationships, email marketing still punches well above its weight.
And that’s exactly why Back9 is a proud Klaviyo Partner.

Among other email tools, we use Klaviyo but because it plays a crucial role in any smart, Growth-Driven Design (GDD) strategy. Particularly, but not limited to, E-commerce. It’s personal, highly measurable (and we’re geeky about stuff like that 🤓). It’s also scalable, and it delivers results you can take to the bank.
Let’s break down what makes Klaviyo such a weapon for eCommerce, how it stacks up on pricing, and why it’s our go-to email tool for brands who want more than just a newsletter.
What Is Klaviyo?
Klaviyo (pronounced clay-vee-oh, if you’re wondering) is an advanced email and SMS marketing platform built specifically for eCommerce. It integrates with tools like Shopify, WooCommerce, and Magento to let you send smarter, more targeted campaigns using real-time customer data.
But Klaviyo isn’t just about sending emails. It’s about using automation, segmentation, and personalisation to drive revenue—not just open rates.
Key Features That Make Klaviyo a Game-Changer
Whether you’re a start-up or scaling fast, Klaviyo offers features that make your marketing work harder:
- Advanced segmentation – Target based on purchase history, site behaviour, or even how often they open your emails.
- Pre-built flows – Think welcome series, abandoned cart, post-purchase follow-ups… all set and ready to go.
- Dynamic email content – Personalise content without manually editing every send.
- Real-time analytics – Track performance on the fly and optimise for conversions.
- SMS marketing built in – Reach your customers where they are, beyond just the inbox.
Add in deep integration with your store, and Klaviyo becomes a data-rich marketing engine that works while you sleep.

Email Marketing + GDD = Smart Growth
Here’s where things get exciting. In a Growth-Driven Design approach, your website is just the start. It’s the launchpad.
Email is where the nurturing, retention, and re-engagement magic happens.
Instead of relying solely on ads or hoping people keep visiting your website, Klaviyo helps you build automated touchpoints that:
- Convert more browsers into buyers
- Re-engage cart abandoners
- Turn first-time customers into repeat ones
And it does it all based on actual user behaviour, not guesswork.
Pricing: Is Klaviyo Worth It?
Short answer? Yes.
Klaviyo’s pricing is based on how many contacts you’ve got in your list. Here’s a quick overview:
- Free Plan: Up to 250 contacts and 500 monthly emails
- Paid Plans: From $20 USD/month, scaling as your list grows
- Custom Pricing: Available for larger or high-volume brands
It’s not the cheapest option out there—but when you factor in the ROI, it’s more than fair. Better targeting = better results = better returns.
And compared to platforms like Mailchimp or ActiveCampaign, Klaviyo’s data-driven focus and native eCommerce integration puts it in a league of its own.
Real-Time Reporting + A/B Testing = Smarter Decisions
One of the biggest upsides? You’re not flying blind.
Klaviyo gives you access to real-time performance metrics across every flow and campaign. Open rates, clicks, revenue attribution—you name it.
Plus, with built-in A/B testing, you can test subject lines, CTAs, or even entire email layouts to find what works best.
No more guessing. Just data-backed decisions.
Is It Easy to Use?
Yep. Despite all the power under the hood, Klaviyo’s interface is intuitive and user-friendly. Even beginners can jump in and start sending professional, on-brand emails.
Their support is solid too—with live chat, email help, and tonnes of step-by-step guides, webinars, and community support.
Why We’re a Klaviyo Partner (And Why It Matters)
We’re not just recommending Klaviyo because it’s trendy—we’re official Klaviyo Partners. That means:
- We’ve done the training and know the platform inside-out
- We get early access to new features
- You get expert-level setup, strategy, and optimisation
- We can help you build a system that grows with your business
Think of us as your in-house email team—minus the payroll overhead.
Final Thoughts: Should You Use Klaviyo?
If you’re serious about using your website and digital channels to drive real growth, then yes—Klaviyo is worth a look.
It’s not a silver bullet. But paired with the right strategy and the right GDD mindset, it’s one of the best tools in the shed.
And when we set it up and optimise it for you? Even better.
Want to see how Klaviyo could work for your business?
Let’s have a chat. We’ll show you how email can go from “meh” to metrics and money-making.