Best Marketing Automation Software in 2026
Sending the same welcome email to everyone who signs up is where most businesses start with email marketing, and where a lot of them stay for years longer than they should. Marketing automation software exists to send the right message to the right person based on what they actually do — abandon a cart, open three emails in a row, go quiet for two months.
We compared three platforms that suit different businesses. One has the deepest and most flexible automation engine of the three, useful across almost any business model. One is built specifically around e-commerce, with revenue attribution baked into every report. And one is the familiar, lower-cost entry point most people have already used in some form, which remains a genuinely reasonable choice for straightforward needs.
- Three marketing automation platforms, ranked by who they actually suit
- A side-by-side comparison of pricing at a small contact-list size
- What matters most when choosing marketing automation software
- Answers to the questions businesses ask most before buying
The short version
- Best overall ActiveCampaign Starter, at $19/month for 1,000 contacts, has the deepest and most flexible automation engine of the three, useful across most business models.
- Best for e-commerce Klaviyo’s Email plan, at $20/month for up to 500 profiles, is built specifically around e-commerce with revenue attribution in every report — the default for Shopify-based stores.
- Best budget / beginner Mailchimp Essentials, at £13/month, is the familiar, lower-cost entry point most people have already used in some form, and remains genuinely reasonable for straightforward needs.
- Pricing scales with your contact list All three platforms price by contact or profile count, so the numbers above apply at small scale — costs rise as your list grows, sometimes steeply.
Our Top Picks at a Glance
Best Overall: ActiveCampaign Starter
ActiveCampaign's reputation rests on its automation builder, and the Starter plan — $19 a month for up to 1,000 contacts — gives you a genuine slice of that: automation triggers and branches, website visitor tracking, and e-commerce integrations if you need them, without locking the deeper automation logic behind a much higher tier the way some competitors do.
Where it earns the "best overall" position is flexibility across business types — it isn't built exclusively around e-commerce the way Klaviyo is, so a service business, a SaaS company or an agency can build equally sophisticated automation without fighting the platform's assumptions. Plus ($59/month) adds a landing page builder and generative AI features; Pro ($89/month) adds more advanced segmentation and reporting on top of that.
Current price: $19/month for up to 1,000 contacts, billed annually, per activecampaign.com and independent pricing trackers reflecting its published tiers — USD, no separate GBP pricing shown; correct at time of publication, always confirm live pricing before buying.
Best for E-commerce: Klaviyo
Klaviyo built its product around a single, specific idea: every email and automation should be traceable back to revenue. Its Email plan costs $20 a month for 251-500 active profiles (there's also a genuinely usable free tier for up to 250 profiles with limited sends), and every campaign report shows attributed revenue directly rather than requiring you to stitch that together yourself from a separate analytics tool.
The deep, near-native integration with Shopify — syncing product, order and customer data automatically — is what makes it the default recommendation for online stores specifically. Businesses outside e-commerce can use it, but the platform's assumptions (products, orders, carts) are clearly built around retail, and a service business will likely find ActiveCampaign a more natural fit.
Current price: $20/month for 251-500 active profiles, per emailtooltester.com's published breakdown of Klaviyo's tiers — USD, no separate GBP pricing shown; correct at time of publication, always confirm live pricing before buying.
Best Budget: Mailchimp Essentials
Mailchimp remains a genuinely reasonable choice for straightforward marketing automation needs, and its familiarity is a real advantage — a huge number of small businesses have used some version of it already, which shortens the learning curve considerably. The Essentials plan runs £13 a month and includes A/B testing, scheduled sending, and basic automation flows up to four steps.
It's less sophisticated than ActiveCampaign's branching automation or Klaviyo's revenue attribution, and the free tier's 250-contact limit is tight for anything beyond a genuinely small list. But for a business that mainly needs to send good-looking campaigns and a few straightforward automated sequences (welcome series, abandoned cart, birthday offers) without a steep learning curve, it still does the job at a native GBP price.
Current price: £13/month (Essentials plan), per mailchimp.com/pricing/marketing (correct at time of publication — always confirm live pricing before buying).
|
Best Overall
ActiveCampaign
|
Best for E-commerce
Klaviyo
|
Best Budget
Mailchimp Essentials
|
|
|---|---|---|---|
| Starting price | $19/mo (1,000 contacts) | $20/mo (500 profiles) | £13/mo |
| Native GBP pricing | No | No | Yes |
| Advanced automation branching | Yes | Yes | – |
| Revenue attribution reporting | – | – | – |
| Free tier available | No | – | – |
| Check Price | Check Price | Check Price |
How to choose marketing automation software
Klaviyo and similar platforms are built around products, orders and carts. A service or SaaS business will find general-purpose automation tools like ActiveCampaign a more natural fit.
All three price by contact or profile count, and the jump between tiers as your list grows can be steep — sometimes doubling costs at a threshold you’ll cross within a year.
More powerful automation builders generally come with a steeper learning curve. A platform your team won’t actually use well isn’t better than a simpler one they will.
Email marketing to UK consumers is governed by PECR and UK GDPR, requiring clear consent and easy opt-out — most platforms handle the mechanics but the compliance responsibility stays with you.
Common questions about choosing marketing automation software
Do I need marketing automation if I only send a monthly newsletter?
Probably not yet — a simple email tool without automation features is enough for a single scheduled send. Automation earns its cost once you’re triggering emails based on behaviour: signups, purchases, abandoned carts, or inactivity.
Is Klaviyo worth it for a non-e-commerce business?
It can work, but its reporting and feature set are optimised around product and order data, which a service business won’t have. ActiveCampaign or Mailchimp will generally feel more natural outside e-commerce.
How much does the price actually go up as my contact list grows?
Significantly, and at different rates per platform — check each vendor’s full pricing table at your projected list size, not just the entry tier, since the jump between bands can be a considerable percentage increase.
Can I migrate my contact list and past automation flows between these platforms later?
Contact lists migrate reasonably easily via CSV export/import. Automation flows and their logic generally don’t transfer directly — expect to rebuild sequences manually if you switch platforms.
Do free tiers actually work for a real small business, or are they too limited?
For genuinely small lists (under 250-500 contacts) they can work for basic sending, but automation features and support are typically limited on free tiers — treat them as a way to test the platform rather than a long-term home for a growing list.
Which marketing automation platform should you actually buy?
- ActiveCampaign suits businesses wanting the most flexible, general-purpose automation
- Klaviyo suits e-commerce businesses that want revenue tied directly to campaigns
- Mailchimp Essentials suits businesses wanting a familiar, lower-cost starting point
- Check pricing at your projected list size, not just today's contact count
If you want the most flexible automation engine and aren’t exclusively an e-commerce business, ActiveCampaign Starter is the strongest general-purpose choice. If you run an online store, Klaviyo’s revenue attribution and Shopify-native integration make it the natural default. And if your needs are straightforward and you want a familiar, lower-cost tool with native GBP billing, Mailchimp Essentials still does the job well for most small businesses starting out.
