Klaviyo is the undisputed leader for e-commerce email marketing. If you run a Shopify store and care about revenue per email sent, Klaviyo is likely already on your shortlist — and for good reason.
E-commerce First
Unlike most email tools that treat e-commerce as an add-on, Klaviyo was built around purchase data from day one. You get pre-built flows for abandoned cart, browse abandonment, post-purchase sequences, win-back campaigns, and more — all pulling real order and product data.
The revenue attribution is a standout feature: you can see exactly how much revenue every email, flow, and segment generated. This makes it easy to justify the cost.
Segmentation
Klaviyo’s segmentation engine is the most powerful in the space. You can build segments like “purchased category X more than twice in the last 90 days, but not in the last 30 days” — the kind of behavioral targeting that directly impacts revenue.
Pricing
Free for up to 250 contacts. Paid plans start at $20/month for 500 contacts. For larger stores — say 50,000 contacts — you’re looking at $700+/month. It’s not cheap, but for an e-commerce store doing significant revenue, it pays for itself.
Verdict
Klaviyo is the best choice for e-commerce, full stop. If you’re not running an online store, look elsewhere — the pricing is hard to justify without the purchase data integration.