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Marketing Automation: HubSpot vs. ActiveCampaign vs. Klaviyo (2026 Buyer's Guide)

Every 'Klaviyo pricing' page leads with a number near $45/mo. The ecommerce businesses we actually track pay closer to $1,400/mo, because it prices by list size, not a flat fee.

By The StackMatch Research Team

Klaviyo's real cost for an ecommerce business isn't the homepage number — list size drives the bill

$1,400Klaviyo's typical all-in monthly cost for ecommerce businesses we track
$15-145ActiveCampaign's plan range, quoted at 1,000 contacts
$300-890HubSpot's typical all-in monthly cost across businesses we track

Klaviyo and HubSpot figures are real all-in monthly costs from the small businesses in our curated catalog; ActiveCampaign's tiered list price is its own published 2026 pricing, since it isn't yet part of that catalog.

Every "Klaviyo pricing" page leads with a number near $45/mo, and it's technically true — for a list under 500 contacts. The ecommerce businesses we actually track run list sizes that push Klaviyo's real bill toward $1,400/mo, because Klaviyo, like most email platforms, prices in tiers by subscriber count, not a flat monthly fee. If you're comparing platforms using the homepage number instead of your actual list size, you're not comparing real costs.

An illustration of a bar chart showing cost savings.

Automation earns its cost through fewer abandoned carts and less manual segmentation — not through a lower list price.

Klaviyo: priced by list size, and that's the whole story

In the ecommerce businesses we track, Klaviyo's all-in monthly cost runs around $1,400/mo — a number that only makes sense once you know it scales with subscriber count instead of a flat platform fee. The features (abandoned-cart flows, product recommendations, predictive analytics) are genuinely built for ecommerce in a way HubSpot and ActiveCampaign aren't, but the entry-tier price on Klaviyo's own site is close to meaningless for planning a real budget — get a quote at your actual list size before comparing it to anything else here.

Don't budget off Klaviyo's advertised entry price. A growing DTC list can multiply the monthly bill several times over within a year purely from list growth, with no plan change required.

ActiveCampaign: $15-145/mo, and contact count moves this one too

ActiveCampaign's four tiers — Starter $15, Plus $49, Professional $79, Enterprise $145/mo — are all quoted at 1,000 contacts; growing past that roughly doubles or triples the bill at a given tier, the same list-size dynamic driving Klaviyo's cost, just at smaller scale. Plus is the realistic entry point for most small businesses, since Starter caps out at a single user seat — a real constraint the moment more than one person needs to build campaigns.

HubSpot: $300-890/mo, and marketing automation is only part of what that buys

HubSpot's marketing automation isn't sold on its own to most of the businesses we track — it's bundled with the CRM (Sales Hub) as part of the same $300-890/mo range covered in our CRM comparison. That's the actual case for HubSpot over the other two: if you already need a CRM and want marketing automation reading from the same contact record without an integration, the bundled price is doing double duty. It's the wrong pick if you just need email sequences — you'd be paying CRM-platform prices for an email tool.

Fit by business model

PlatformBest forPricing driverTypical monthly cost
KlaviyoEcommerce / DTCSubscriber count$1,400 (real ecommerce list sizes)
ActiveCampaignEmail-first / course businessesContact count + tier$15-145 (at 1,000 contacts)
HubSpotB2B needing CRM + marketing togetherWhich Hubs enabled$300-890

Monthly cost, illustrative mid-size list

Questions to ask before picking a marketing automation platform

  • What's your actual subscriber or contact count today, and where will it be in a year? That number matters more than any plan tier name for Klaviyo or ActiveCampaign.
  • Do you need a CRM as well as marketing automation? If yes, HubSpot's bundled price may end up cheaper than buying both separately.
  • Does more than one person need to build campaigns? ActiveCampaign's Starter tier caps at a single user seat.
  • Are you comparing platforms using their homepage entry price, or a quote at your real list size? Only the second number is meaningful.

The three platforms aren't really competing on price — they're competing on what drives the price. Get a quote at your actual contact count before treating any of these numbers as comparable.

Run the free audit to see which marketing automation platform fits your list size and revenue model, not just the homepage price.

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