Email marketing automation software is a platform that sends emails automatically when a subscriber does something, such as joining your list, abandoning a cart, or completing a purchase, instead of a marketer sending every message by hand. The best picks for 2026 are ActiveCampaign for automation depth, Klaviyo for ecommerce, Mailchimp for simplicity, Brevo and MailerLite for tight budgets, Omnisend for ecommerce plus SMS, and HubSpot when you also need a CRM. Below is exactly what each one costs and does well, using each vendor's own published pricing.
Email marketing automation software is a platform that sends emails automatically based on a subscriber's behavior, such as signing up, abandoning a cart, or making a purchase, instead of requiring a marketer to send each message by hand. It combines list management, a visual workflow builder, segmentation, and reporting in one tool. If you are just getting oriented with the format options available, our guide to the types of email marketing covers automated flows alongside newsletters and promotional sends.
Under the hood, every platform in this category runs on the same basic loop: a trigger fires (a form submission, a tag, a purchase webhook), the workflow builder checks conditions (has this person bought before, what did they click), and the software sends the matching message, then waits for the next trigger. The differences between tools come down to how deep that condition logic can go, how well it plugs into your store or CRM, and what it costs per contact.
We pulled the entry-level paid pricing, the free-plan ceiling, and the standout feature straight from each vendor's own pricing page, checked in September 2026. Contact-based pricing means your actual bill rises as your list grows past the tier shown.
| Platform | Entry paid price | Free plan | Best for | Standout feature |
|---|---|---|---|---|
| ActiveCampaign | From $49/mo (Plus, 1,000 contacts, billed annually) | No | Deep, multi-branch automation | 950+ prebuilt automation recipes |
| Klaviyo | From $45/mo (Email plan, 1,001 to 1,500 profiles) | Up to 250 profiles, 500 sends/mo | Ecommerce and Shopify stores | Predictive analytics (CLV, churn risk) |
| Mailchimp | From $13/mo (Essentials, promotional rate, 1,500 contacts) | Up to 500 contacts, 500 sends/mo | Simple automation on a small list | Generative AI content tools |
| Brevo | From $9/mo (Starter, 5,000 emails/mo) | Unlimited contacts, 300 emails/day | Tight budgets with automation included | Pay-by-email-volume, not contact count, on Starter |
| MailerLite | From $12/mo (Comfort, scales by subscriber tier) | Up to 250 subscribers, 2,500 sends/mo | Solo creators and small lists | Full feature set on every paid tier |
| Omnisend | From $16/mo (Standard, scales by contact count) | Up to 250 contacts, 500 emails/mo | Ecommerce plus SMS in one plan | SMS credits bundled into Pro |
| HubSpot | From $20/mo (Starter Marketing Hub, 1,000 contacts) | Up to 1,000,000 contacts (limited features) | B2B teams that need a CRM too | Native CRM and sales pipeline |
A word on how to read that table: list price rarely equals what you pay at scale. ActiveCampaign, Klaviyo, and Omnisend all bill by contact count, so the entry price shown applies only up to the stated ceiling and climbs from there. Brevo is the outlier, since its Starter and Standard plans bill by emails sent rather than contacts stored, which can make it cheaper for a large but infrequently emailed list.
ActiveCampaign's Plus plan starts near $49 a month for 1,000 contacts billed annually, with Professional at roughly $79 and Enterprise at roughly $145, based on current third-party pricing trackers cross-checked against ActiveCampaign's own pricing page. Every tier includes a visual automation builder, over 950 prebuilt automation recipes, and an AI automation assistant that drafts workflows from a plain-language prompt. The entry Starter tier caps automations at 5 actions each, so the automation depth that earns ActiveCampaign its reputation only unlocks from Plus upward. It suits teams that want branching, multi-condition workflows without hitting a ceiling.
Klaviyo's free plan covers up to 250 active profiles and 500 email sends a month, and its Email plan starts at $45 a month once you cross into the 1,001 to 1,500 profile tier. Every paid tier gets the same feature set, including predictive analytics such as customer lifetime value and churn-risk scoring, so you are paying purely for list size rather than unlocking features. Its native Shopify, WooCommerce, and Magento integrations sync purchase and browsing data straight into segments and flows, which is why it dominates ecommerce. If you run a store, our ecommerce email marketing playbook goes deeper on the flow sequence Klaviyo is built to run.
Mailchimp's free plan allows up to 500 contacts and 500 sends a month with basic automation limited to 4 steps. Essentials starts at $13 a month at current promotional pricing (regular pricing applies after the first 12 months) for 1,500 contacts, Standard runs $20 a month for 25,000 contacts with up to 200 automation flows, and Premium reaches $350 a month for unlimited contacts. Mailchimp is the most recognizable name in the category and its editor is genuinely easy for a first-time user, but its automation logic is more linear than ActiveCampaign's or Klaviyo's, and fast-growing ecommerce brands often outgrow it once they need conditional, multi-branch flows.
Brevo prices differently than the rest of this list: its Starter plan begins at $9 a month for 5,000 emails sent, regardless of how many contacts you store, and the free plan allows unlimited contacts at 300 emails a day. Standard, which adds automation workflows, A/B testing, and landing pages, starts at $18 a month. Professional (advanced reporting, send-time optimization) starts near $499 a month. Because Brevo bills by send volume on its lower tiers rather than list size, it can be the cheapest option for a large list you email infrequently, which is unusual in this category.
MailerLite's free plan covers up to 250 subscribers and 2,500 sends a month with 3 basic automations. The Comfort plan starts at $12 a month (or $10.80 billed yearly) and unlocks up to 50 automations, and Power starts at $25 a month with unlimited automations and up to 100 steps per workflow. MailerLite's standout is that every paid plan gets the identical full feature set, so you are only ever paying for send volume and subscriber count, never for gated features. It suits solo creators, small ecommerce stores, and anyone who wants a straightforward workflow builder without a steep learning curve.
Omnisend's Standard plan starts at $16 a month and scales with contact count (roughly $132 a month at 10,000 contacts), and Pro starts at $59 a month with unlimited email sends and bundled SMS credits. Built specifically for ecommerce, it integrates natively with Shopify, BigCommerce, and WooCommerce and includes prebuilt automation workflows for cart recovery, welcome series, and order confirmations out of the box. It is a reasonable middle ground between Klaviyo's depth and Mailchimp's simplicity, and the bundled SMS on Pro is a real cost saver if you were going to buy SMS separately anyway.
HubSpot's Marketing Hub Starter begins around $20 a month for 1,000 marketing contacts, and its free CRM tier supports up to a million contacts with limited marketing features. The reason to pick HubSpot over a pure email tool is the CRM underneath it: sales reps can see every email a lead opened or clicked directly in the same record they use to manage the deal. That makes it the strongest option for B2B companies where marketing and sales share pipeline data, though it is generally more expensive than a standalone email tool once you add the CRM and sales seats most teams actually need. Our CRM and email marketing guide covers how to decide whether you need that CRM layer at all before you pay for it.
Most platforms range from free for a few hundred contacts up to several hundred dollars a month at scale. As of September 2026, MailerLite and Brevo start near $9 to $12 a month, Mailchimp and Omnisend start around $13 to $16, Klaviyo starts near $45 for 1,000 to 1,500 contacts, and ActiveCampaign's Plus plan starts near $49. Every platform's price rises with your contact count and the features you add.
The number that matters more than the sticker price is what you get back. Klaviyo's 2026 benchmark data, drawn from more than 183,000 brands, found that automated flows generate 41% of all email-driven revenue while accounting for just 5.3% of total send volume. That gap is the entire argument for paying more for a platform with a genuinely capable automation builder rather than the cheapest sender you can find: a handful of well-built flows outearn a much larger volume of one-off campaigns.
Start with a welcome series for new subscribers, a cart or browse abandonment flow if you sell online, a post-purchase sequence, and a win-back flow for subscribers who go quiet. Klaviyo's 2026 benchmark data shows these four flow types account for the large majority of automated revenue, so they are the highest-leverage builds before anything more advanced.
Cart and browse abandonment flows deserve special attention because they perform better than almost any other automated type. Abandoned cart emails average a 50.5% open rate on Klaviyo, with top-decile senders reaching over 65%, and these flows generate the highest revenue per recipient of any automation category. If email capture is still the bottleneck before any of this works, our breakdown of the email marketing funnel covers how to grow the list these flows depend on, and pairing the two channels compounds further; see how email marketing works alongside SEO to capture the organic traffic you already earn.
Email marketing software sends newsletters and one-off campaigns to your whole list at once. Marketing automation triggers individual messages based on what a specific subscriber does, such as joining the list, browsing a product, or abandoning a cart. Most modern platforms, including every tool in this guide, now do both under one roof.
The practical takeaway is that you rarely choose one or the other anymore. A newsletter keeps your list warm between purchases, while automation handles the moments that convert best: the first 24 hours after signup, the hour after a cart is left behind, the days after a purchase arrives. Tracking whether either type is actually working comes down to the same handful of numbers; our email marketing KPIs guide breaks down which metrics to watch for campaigns versus flows.
Match the platform to your business type first: Klaviyo or Omnisend for ecommerce, HubSpot or ActiveCampaign for B2B with a sales team, Brevo or MailerLite for a lean budget. Then check that your existing store or CRM has a native integration, confirm the automation limits on the plan you can afford, and test the workflow builder yourself before committing to a year of billing.
A handful of avoidable errors account for most underperforming automation programs, regardless of which platform runs them.
What is email marketing automation software? Email marketing automation software is a platform that sends emails automatically based on a subscriber's behavior, such as signing up, abandoning a cart, or making a purchase, instead of requiring a marketer to send each message by hand. It combines list management, a visual workflow builder, segmentation, and reporting in one tool.
How much does email marketing automation software cost? Most platforms range from free for a few hundred contacts up to several hundred dollars a month at scale. As of September 2026, MailerLite and Brevo start near $9 to $12 a month, Mailchimp and Omnisend start around $13 to $16, Klaviyo starts near $45 for 1,000 to 1,500 contacts, and ActiveCampaign's Plus plan starts near $49. Every platform's price rises with your contact count and the features you add.
What is the difference between email marketing software and marketing automation? Email marketing software sends newsletters and one-off campaigns to your whole list at once. Marketing automation triggers individual messages based on what a specific subscriber does, such as joining the list, browsing a product, or abandoning a cart. Most modern platforms, including every tool in this guide, now do both under one roof.
How do I choose the right email marketing automation platform? Match the platform to your business type first: Klaviyo or Omnisend for ecommerce, HubSpot or ActiveCampaign for B2B with a sales team, Brevo or MailerLite for a lean budget. Then check that your existing store or CRM has a native integration, confirm the automation limits on the plan you can afford, and test the workflow builder yourself before committing to a year of billing.
Is Mailchimp good for email automation? Mailchimp works for basic automation such as welcome emails and simple triggers, and its free and Essentials plans cover small lists cheaply. Its automation builder is less flexible than ActiveCampaign's or Klaviyo's once you need multi-branch logic or ecommerce-specific triggers like browse abandonment, so fast-growing online stores often outgrow it.
Which email automation tool is best for ecommerce? Klaviyo and Omnisend are built specifically for ecommerce, with native Shopify, WooCommerce, and BigCommerce integrations that sync purchase history and browsing behavior into automation triggers. Klaviyo leads on segmentation depth and predictive analytics; Omnisend is the more affordable option with SMS bundled into its Pro plan.
Can I switch email marketing automation platforms without losing my list? Yes. Every major platform lets you export your contact list as a CSV and most offer a direct migration tool or a done-for-you migration service for paid plans. The harder part is usually rebuilding your automation workflows and reconnecting your store or CRM integration, so budget time for that rather than assuming a one-click switch.
Do I need a CRM built into my email automation software? You need a built-in CRM if sales reps work leads individually, such as in B2B or high-ticket sales, which is where HubSpot or ActiveCampaign's CRM add-on helps. Ecommerce brands selling directly to consumers rarely need one, since Klaviyo or Omnisend's customer profiles already cover purchase history without a separate sales pipeline.
What automations should a new list start with? Start with a welcome series for new subscribers, a cart or browse abandonment flow if you sell online, a post-purchase sequence, and a win-back flow for subscribers who go quiet. Klaviyo's 2026 benchmark data shows these four flow types account for the large majority of automated revenue, so they are the highest-leverage builds before anything more advanced.
Pick the platform that matches your business model rather than the one with the longest feature list, and build the welcome, abandonment, post-purchase, and win-back flows before anything more advanced. Whichever tool you choose, the software only pays for itself if the traffic feeding your list keeps growing behind it. If organic search is meant to be doing that job and is not, request a free SEO audit from Rankite and we will show you where the growth is stalling before you spend another month on the wrong platform.
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