ActiveCampaign vs MailerLite - Who Wins?

13 minute read

In this buying guide, we compare the ActiveCampaign & MailerLite email marketing platforms on automation, features, and pricing. And since you're on our turf, we'll spotlight areas where we think Campaign Monitor by Marigold naturally shines as the smarter alternative 💜

Disclaimer: The features, pricing, and details mentioned for each product are as of August 2025 and may have changed since then.

Comparison Image
CategoryActiveCampaignMailerLiteCampaign Monitor
Pricing 14-day free trial, then starts at $29/mo with pricing based on contacts. No free plan. Free plan (12,000 emails), then starts at $10/mo 30-day free trial (no card required), then starts at $12/mo and goes up to $159/mo.
User Sentiment 4.5/5 (13K+ reviews) 4.6/5 (1,000+ reviews) 4.2/5 (2,000+ reviews)
Automation & Workflows 900+ automation recipes with advanced conditional logic. 50+ triggers and prebuilt journeys Prebuilt customer journeys (welcome, abandoned cart, anniversaries, events) with extensive triggers.
AI Features AI campaign builder, predictive sending, brand kit. AI writing assistant, smart sending AI Writer for brainstorming, adapting copy, optimizing CTAs.
Deliverability & Reliability 99%+ delivery with robust infrastructure. Strong deliverability (rate not disclosed) 99% deliverability rate.
Segmentation & Targeting Behavior-based + AI segmentation, dynamic content blocks. Auto-updating segments with AND/OR logic Advanced triggers and prebuilt automated journeys.
Integration Ecosystem 950+ integrations: Shopify, WooCommerce, Magento, BigCommerce, Zendesk Sell, Eventbrite, Salesforce, Zapier. 150+ integrations 250+ integrations: Salesforce, Shopify, WordPress, HubSpot, WooCommerce, Intercom, OptinMonster, Unbounce.
Conversion & List-Building Tools Advanced forms, landing pages, conditional content. Forms, landing pages, website builder Custom form builder with embedded forms, subscribe buttons, auto-branded templates, Pexels image integration.
Support & Resources Chat (Mon–Fri 3 am–11 pm CT; Sun 6–11 pm CT) + ticket support. No phone support. Email & chat (30 days free), email on entry-level, live chat on mid-tier+ 24/5 email support, phone (on Premier plan), + deliverability experts on standby.
Best for... Growth-focused teams needing advanced automation, segmentation, and integrations. Creators and SMBs needing affordable email, simple automations, and built-in site builder. Brands prioritizing expert deliverability, reliable design, and professional onboarding.

“So glad we've switched to Campaign Monitor.”

If you have a versatile email campaign with lots of moving parts and a complex list of subscribers Campaign Monitor makes things so easy. And if you have a simple newsletter that is straight forward and sent to the same list each month, Campaign Monitor is even easier…

Verified User in Marketing and Advertising (G2)

Head to head comparison

1. User sentiment

MailerLite leads in satisfaction, ActiveCampaign dominates in review volume

Feature ActiveCampaign MailerLite Campaign Monitor
Average Rating 4.5/5 (14K+ reviews) 4.6/5 (1000+ reviews) 4.2/5 (2000+ reviews)
Setup Experience 5 minutes - 24 hrs for validating domain authentication. Quick, intuitive setup, may take up to 48 hrs for validating domain authentication. 30-min avg. setup with short video series.
Learning Curve Intuitive interface, guides with videos available for new users. User-friendly interface with with guides and video tutorials for new users Intuitive interface, video modules available for new users.
Best for → Growing businesses needing advanced features Businesses needing simple setup, fast support, and learning resources Brands that value ease of use, strong design flexibility, and guided support for quick adoption

ActiveCampaign is ideal for growing businesses that need advanced features to scale effectively. It supports deeper marketing sophistication, making it a strong fit for companies that want granular control, automation depth, and room to expand as their customer base and campaigns become more complex.

MailerLite benefits businesses that want a simple, fast, and user-friendly solution without sacrificing effectiveness. It’s a great option for teams that value quick setup, intuitive workflows, and accessible support, making it easy to launch campaigns even with limited resources.

Campaign Monitor works best for brands that value ease of use paired with strong design flexibility. With its guided workflows and design-first approach, it’s perfect for businesses that want to deliver professional, polished campaigns quickly, without needing advanced technical skills.

quotation mark

"LOVE Campaign Monitor... it's very user friendly. The support is exceptional. It helps us reach a large audience in a personal way and a format which drives results above industry benchmarks."

Verified User in Leisure, Travel & Tourism


2. Design & user experience

ActiveCampaign offers advanced control, MailerLite prioritizes simplicity, Campaign Monitor balances both

Feature ActiveCampaign MailerLite Campaign Monitor
Email Editor Drag-and-drop builder Drag‑and‑drop with custom blocks, inline editing, AI writing assistant Intuitive drag-and-drop email builder with HTML customization, auto-branding
Template Library 250+ templates with advanced personalization options 100+ responsive templates for campaigns (paid plans) 300+ mobile-optimized templates with auto-branded options
Design Flexibility Flexible layouts with conditional content and optional HTML editing Save reusable content blocks, dynamic content visibility per segment, HTML editing Auto-branded templates from website URL, dynamic content and custom fields
Branding Consistency AI-powered brand kit for consistent application Save blocks and templates for consistent campaignsI Auto-branded custom templates
Best for → Teams needing advanced personalization and control Users wanting easy design tools, consistent branding, and AI efficiency Marketers who value high-quality, professional design without complexity

ActiveCampaign gives teams full control over design and personalization. You can shape campaigns in detail, adjust layouts, and tailor every piece to your audience. It’s best for brands that want to fine-tune every step of their emails instead of sticking to fixed templates.

MailerLite makes design simple and consistent. With reusable blocks and smart tools, you can build polished emails fast without getting stuck in tech details. It’s a solid pick for businesses that want to save time but still look professional.

Campaign Monitor focuses on professional designs made easy. Auto-branding keeps emails on-brand, while the drag-and-drop editor takes the heavy lifting out of setup. It’s perfect for marketers who want clean, polished campaigns without extra hassle.

quotation mark

"Campaign Monitor's drag-and-drop editor is much better than other email platforms such as Mailchimp. The interface generally is very intuitive and easy to use..."

Verified user in Marketing and Advertising (G2)


3. Automation & journeys

ActiveCampaign dominates complexity, Omnisend specializes in ecommerce flows, Campaign Monitor offers guided power

Feature ActiveCampaign MailerLite Campaign Monitor
Trigger Options Contact behavior, purchases, web/app activity Six core triggers, plus e‑commerce triggers (abandoned cart, purchase events) Time-based, behavior-based, and event-based triggers (opens, clicks)
Conditional Logic Advanced if/then logic with branching Branch workflows using Condition steps (Yes/No) Advanced if/then branching
Prebuilt Journeys Prebuilt automated journeys, like welcome series, lead nurturing, abandoned cart, re-engagement, and event reminders. Welcome, abandoned cart, date-based, and purchase flows Prebuilt automated journeys, such as welcome series, abandoned cart, anniversaries, and events
Journey Complexity Highly customizable multi-step journeys with deep segmentation Multi-step workflows with sequence controls (delays, conditions, retries, A/B splits, webhooks) Focused on email-centric journeys, but offers SMS as well

ActiveCampaign is built for complex journeys and deep control. You can map out detailed flows, segment users by behavior, and guide them with precision. It’s ideal for businesses that want powerful, flexible automation that grows with customer actions.

MailerLite keeps automation easy and approachable. Prebuilt flows and clear branching make it simple to set up abandoned cart emails or purchase reminders. It’s best for teams that want quick wins without needing advanced setups.

Campaign Monitor strikes a balance with guided, reliable journeys. It offers strong prebuilt options like welcome or anniversary series, with enough flexibility to customize when needed. Perfect for marketers who want polished automation without overcomplicating things.

quotation mark

"Wonderful Union saved 40 hours weekly using Campaign Monitor's automated email marketing campaigns and saw a 13% increase in CTR on automated sequences, generating a 700% ROI from email marketing campaigns."

Read the case study here ➔

4. AI Features

ActiveCampaign leads in AI sophistication, Campaign Monitor focuses on practical assistance

Feature ActiveCampaign MailerLite Campaign Monitor
AI Content Creation Generative AI for emails, landing pages, subject lines, plus AI Prompt Block for campaigns. Built-in AI writing assistant for generating emails, headlines, and CTAs AI Writer for brainstorming, refining copy, adapting content for new audiences, generating captions, and optimizing CTAs
Design Intelligence AI Brand Kit applies fonts, logos, and colors across campaigns. AI tone control for consistent, non-spammy messaging Personalized copy suggestions, auto-branding
Optimization Tools AI Campaign Builder creates campaigns from prompts; AI Automation Builder builds workflows. Smart sending optimizes delivery by behavior and time zone Send time recommendations & time zone sending
Predictive Features Predictive sending, win probability scoring, and trend forecasting. Smart segment suggestions based on engagement (opens, clicks, activity) A/B testing with insights & goals (optimize open rates, CTR, conversions)
Best for → Growth-focused teams needing AI-driven automation and advanced targeting. Users needing AI copy help and smart send-time optimization Marketers needing AI-driven content inspiration and audience-optimized messaging

ActiveCampaign gives teams sophisticated AI tools that not only generate content but also help predict customer behavior. With features like predictive sending and trend forecasting, it’s best for brands that want to stay ahead of customer needs and fine-tune campaigns for maximum growth.

MailerLite’s AI feels practical and approachable. It helps polish your copy, keep the tone consistent, and make sure emails land at the right time. This makes it perfect for teams who want smart automation without overcomplicating their workflow.

Campaign Monitor focuses on making content creation faster and more effective. With AI-driven suggestions and testing tools, it’s built for marketers who want fresh ideas, optimized messages, and reliable improvements in engagement.

5. Deliverability & performance

All platforms offer strong delivery, Campaign Monitor provides expert guidance

Feature ActiveCampaign MailerLite Campaign Monitor
Delivery Rate Approximately 94% industry-standard delivery rates High deliverability (rate not disclosed) 99% average delivery rate* (among the best in the industry)
Inbox Placement Full delivery stack for high-volume and authenticated senders Reliable inbox delivery with MailerCheck list cleaning and spam checks Strong sender reputation with mailbox providers; dedicated team optimizing for consistent inbox placement
Deliverability Tools Automated list cleaning, double opt-in support, spam check, domain verification, campaign previews MailerCheck list cleaning & verification, SPF/DKIM setup, optional dedicated IP with warm-up, double opt-in & hygiene tools Inbox previews, spam testing, deliverability experts, in-app authentication guidance (SPF, DKIM, DMARC), dynamic list hygiene tools
Sending Reliability Predictive sending, real-time monitoring, re-engagement Campaign and automation dashboards track metrics like bounces, opens, and complaints Real-time performance dashboards with bot-click filtering; trend monitoring to support sender reputation
Best for → Teams needing detailed attribution and insights Senders wanting transparent deliverability, expert support, and low-impact bounces Businesses that want expert deliverability guidance and proactive support to maximize inbox placement

ActiveCampaign offers solid deliverability with strong tracking. Brands benefit from real-time monitoring, predictive sending, and re-engagement tools, making it a good fit for teams that want detailed insights and control over performance.

MailerLite provides transparent deliverability with practical tools. Businesses can rely on list cleaning, verification, and complaint tracking, which helps minimize bounce rates and maintain a clean sender reputation.

Campaign Monitor stands out with expert deliverability support and proactive guidance. With advanced testing, real-time dashboards, and strong reputation management, it’s ideal for businesses that want industry-leading inbox placement and peace of mind.

quotation mark

"We use Campaign Monitor because it is quite easy to use. It is also very reasonably priced. We haven't had any problems with deliverability or in creating the emails."

verified user in Marketing and Advertising


6. Segmentation & personalization

ActiveCampaign excels in behavioral precision, MailerLite offers basic targeting, Campaign Monitor provides comprehensive control

Feature ActiveCampaign MailerLite Campaign Monitor
Segmentation Capabilities AI-assisted segmentation with CRM data, behavior, and purchase history Real-time auto-updating segments using AND/OR logic, tags Rule-based segmentation using subscriber data (custom fields, activity, location, demographics) with AND/OR logic; unlimited segments per list
Dynamic Content Conditional and dynamic content blocks powered by CRM data Dynamic blocks targeted by group, segment, or custom field Dynamic content blocks using if/else logic and custom fields
Personalization Tags Automatically generated tags + custom fields from CRM Custom fields, merge tags with fallback values Supports default tags (name, email) and up to 50 custom fields (birthday, country)
Subscriber Preferences Preference center with CRM-linked management Preference center let subscribers update groups/tags for targeting Fully customizable preference center (fields, frequency, topics)
Best for → Businesses needing AI-driven targeting and granular audience control Users needing flexible segments, dynamic blocks, and personalization Rule-based segmentation using subscriber data (custom fields, activity, location, demographics) with AND/OR logic; unlimited segments per list

ActiveCampaign gives brands deep control with AI-assisted segmentation, using CRM data, behavior, and purchase history. This allows businesses to target audiences with precision and create dynamic, personalized experiences that adapt to customer actions in real time.

MailerLite makes personalization simple yet effective with real-time auto-updating segments and dynamic blocks. It’s a great fit for businesses that need flexible targeting and customization without adding complexity, ensuring relevant messaging that adjusts automatically.

Campaign Monitor provides comprehensive segmentation with unlimited flexibility. With rule-based targeting, custom fields, and detailed audience controls, it’s ideal for marketers who want strong personalization at scale, supported by visual tools that simplify complex audience targeting.

quotation mark

The Australian Red Cross used Campaign Monitor's preference center and smart segmentation to achieve a 68% increase in open rates, a 201% increase in click-through rates, and a 75% increase in conversions from a single personalized email campaign.

Read the case study here →

7. Integration ecosystem

ActiveCampaign leads in breadth, MailerLite covers essentials, Campaign Monitor emphasizes quality

Feature ActiveCampaign MailerLite Campaign Monitor
Number of Integrations 950+ integrations across CRM, ecommerce, ads, forms, and sales tools 150+ integrations across e-commerce, CRM, automation, and analytics 250+ integrations with focus on quality
CRM Integrations Salesforce, Microsoft Dynamics 365, Zoho, Zendesk, Pipedrive Salesforce, ClickFunnels, HubSpot, Pipedrive Shopify, WooCommerce, MailSync
E-commerce Integrations Shopify, WooCommerce, BigCommerce, Magento Shopify, WooCommerce, BigCommerce with cart sync and tracking Integrations with various CRM platforms (Salesforce, Zoho, Zapier)
API Flexibility Full API for bi-directional sync; CRM + sales data mapping REST API plus no-code connectors Robust API for custom integrations
Best for → Agencies or teams managing complex multi-channel stacks needing flexibility Teams needing smooth commerce + CRM sync with flexible API Marketers working with major platforms seeking quality

ActiveCampaign shines with breadth of integrations—connecting with nearly every major CRM, e-commerce, and sales tool. This makes it ideal for agencies or large teams managing complex multi-channel stacks, giving them the flexibility to sync and unify data across all platforms without roadblocks.

MailerLite balances simplicity and flexibility, offering enough integrations to cover the essentials in e-commerce and CRM while staying easy to manage. It’s best for teams that need smooth commerce + CRM sync without technical hassle, ensuring streamlined workflows and quick setup.

Campaign Monitor emphasizes quality over sheer quantity, focusing on reliable integrations with major platforms like Salesforce and Zoho. This ensures marketers get robust, dependable connections without worrying about compatibility issues—perfect for brands prioritizing stability and consistent performance.

quotation mark

Girls Who Code leveraged Campaign Monitor's Salesforce integration with custom fields for deeper list precision, helping them achieve a 40% email open rate, 22% click-to-open rate, and a 150% increase in student applications.

Read the case study here →

8. Pricing & scalability

MailerLite offers best value, ActiveCampaign scales with features, Campaign Monitor provides predictable growth

Feature ActiveCampaign MailerLite Campaign Monitor
Starter Offer 14-day free trial across all plans Free plan (1,000 subscribers, 12K emails/month, automation, landing pages, and pop-ups) 30-day free trial (500 contacts, 500 email sends, 3 users, drag-and-drop builder, templates, basic reporting)
Most Popular Plus $49/mo (automation and insights), Pro $79/mo (predictive sending and advanced segmentation) Growing Business: $10/mo — dynamic content, unlimited templates, auto-resend, multivariate testing, RSS campaigns Essentials $29/mo ($2.90 first month) — unlimited contacts & email sends, inbox preview, automations, AI Writer, transactional emails, priority support
Pricing Model Tiered plans (Starter $15/mo → Plus $49/mo → Pro $79/mo → Enterprise $145/mo); feature-based scaling with AI, CRM, and multichannel options Contact-based pricing; no double charges; 10% annual & 30% nonprofit discount Tiered plans (Free → Lite $12/mo → Essentials $29/mo → Premier $159/mo) with unlimited emails from Essentials upward
Best for → Teams needing advanced automation, AI features, and enterprise scalability Small businesses scaling affordably with advanced features Best for brands wanting predictable, lower-cost entry plans with strong email features and optional SMS add-ons.

ActiveCampaign offers scalable pricing tied to features, making it a great fit for teams that want to grow into advanced automation, AI-driven personalization, and multichannel marketing. Brands benefit from predictable upgrades as they scale, ensuring they always have the right tools at each stage of growth.

MailerLite delivers the best affordability, with flexible free and low-cost options. It’s ideal for small businesses and nonprofits that want powerful features without breaking the budget. The contact-based pricing ensures no surprise charges, while discounts make it even more accessible for lean teams.

Campaign Monitor focuses on predictability and ease, offering clear tiered plans with unlimited emails from mid-level tiers. It works best for brands that want stable, transparent costs while still accessing professional-grade email tools and optional SMS features, making long-term planning simple.

9. Support & resources

MailerLite offers 24/7 availability, Campaign Monitor leads in expert guidance

Feature ActiveCampaign MailerLite Campaign Monitor
Support Availability Free: 30 days of email support → chatbot ongoing. Essentials+: 24/7 chat + email. Premium: 24/7 chat, email, and phone with screen share. Email support on Advanced/ Growing Business, live chat for Advanced plans Email, phone, knowledge base, tutorials, and deliverability experts available
  • Americas: Mon–Fri, 6 am–5 pm PST/PDT
  • Australia & Asia: Mon–Fri, 9 am–5 pm AEST/AEDT
  • Europe: Mon–Fri, 9 am–5 pm BST/GMT
Support Response Time Helpful; faster resolution on Premium plans. Generally well-regarded, live chat replies averaging ~5 minutes Fast response times praised
Knowledge Resources Help Center, Resources center, and Step-by-step guides. Knowledge base, video tutorials and academy Extensive help center, Knowledge Base, training videos, and email academy (even on free plan)
Expert Guidance Assisted onboarding on Standard; dedicated onboarding for Premium (first 90 days) Onboarding & deliverability help with Advanced/Enterprise plans Professional services team available
Best for → Self-service SMBs that need occasional live support. Teams needing self-service, fast support, and expert onboarding Best for brands that want personalized onboarding, expert deliverability guidance, and extensive self-serve resources.

ActiveCampaign is best for small and midsize businesses (SMBs) that mostly handle things themselves but want occasional live help. Premium plans suit teams that may need direct, hands-on support like screen share and phone access when problems arise.

MailerLite is best for growing teams that value quick self-service and fast replies. Great fit for startups and lean businesses that want affordable plans with access to tutorials, videos, and live chat on advanced tiers as they scale.

Campaign Monitor is best for established brands that want expert guidance and global availability. Ideal for companies that need personalized onboarding, deliverability specialists, and an extensive knowledge base, making it reliable for larger teams aiming for long-term stability and performance.

quotation mark

"Been working with Campaign Monitor for 10+ years… Not only does the platform make sending highly-customized emails easy and fun, their support team is phenomenal… Highly recommend."

JoAnn H., Creative Account Manager (G2)


What people are saying about Campaign Monitor…

★★★★★

"Best customer support email I have ever received"

★★★★★

"Simple, easy to use"

★★★★★

"Great functionality in a nicely wrapped package"

More Head-to-Head Comparisons

Campaign Monitor Campaign Monitor
VS.
Klaviyo Klaviyo
Campaign Monitor Campaign Monitor
VS.
Mailchimp Mailchimp
Campaign Monitor Campaign Monitor
VS.
SendGrid SendGrid
Campaign Monitor Campaign Monitor
VS.
Constant Contact Constant Contact
Campaign Monitor Campaign Monitor
VS.
ActiveCampaign ActiveCampaign

The verdict: ActiveCampaign wins for advanced automation, MailerLite excels for budget value, but Campaign Monitor offers the best balance

Cure Brain Cancer Foundation switched from Mailchimp to Campaign Monitor for better branding control, cost-efficiency, and automation scale, ultimately raising $1.6M AUD in one campaign (exceeding their $1.5M target) with a 90% reduction in non-fundraising registrants.


Read the case study here ➔

Try Campaign Monitor free for 30 days

Experience the perfect balance of powerful features and user-friendly design with Campaign Monitor by Marigold. Get professional templates, intuitive automation, and exceptional support without the complexity or pricing surprises.

No credit card required. Experience the difference with Campaign Monitor's user-friendly platform and see why thousands of businesses have made the switch.

Need Help Migrating? Our team of experts will help you seamlessly transition to Campaign Monitor with our professional services team.

  1. 01

    Sign up & get 90% off your first month.

    Start your free trial in under 60 seconds. No credit card needed.

  2. 02

    Import or build your list

    Migrate your contacts instantly or build fresh lists with our simple tools.

  3. 03

    Launch your first campaign

    Create stunning emails with drag and drop and send to thousands in minutes.

Read other comparisons: