Quick Answer
Top Pick
For most 5–50 person teams, ActiveCampaign wins on automation depth, HubSpot wins if CRM is the priority, Mailchimp is the easiest starting point for simple sending, and Brevo is the best value for high-volume senders who want transactional email included. Your specific use case — not brand recognition — should drive the decision.
Email marketing platform decisions seem simple until you’re three browser tabs deep into pricing pages that haven’t been updated since last year. HubSpot, ActiveCampaign, Mailchimp, and Brevo all do email marketing. They do not all do the same things, and they are not all priced the same way. The differences matter enormously depending on your team size, how much automation you need, and whether you want a standalone email tool or a full CRM.
This comparison cuts through the noise. Each tool is reviewed on actual pricing, real limitations, and specific fit by use case — not just a generic “it depends” answer.
Comparison at a Glance
| Tool | Starting Price | Best For | Free Trial | Key Differentiator | Verdict |
|---|---|---|---|---|---|
| HubSpot | Free plan / ~$20/mo Starter | CRM-first teams who want marketing in one place | Free plan (unlimited users) | Best-in-class CRM that email sits inside | Best for CRM-led teams |
| ActiveCampaign | ~$15/mo (1,000 contacts) | Teams who need deep automation and segmentation | 14-day trial | Most powerful automation builder in this group | Best for automation-heavy teams |
| Mailchimp | Free plan / ~$13/mo Essentials | Small teams sending simple newsletters | Free plan (500 contacts) | Easiest onboarding; widest template library | Best for simple newsletter sending |
| Brevo | Free plan / ~$25/mo Starter | High-volume senders needing transactional email | Free plan (300 emails/day) | Priced per email sent, not per contact | Best for transactional + marketing combined |
Pricing changes frequently. All figures are approximate and based on information available at time of writing — verify current rates on each provider’s official pricing page.
HubSpot: Best When CRM Is the Core
HubSpot is not primarily an email marketing tool — it is a CRM platform that includes email marketing. If your team is evaluating tools with any intention of also managing contacts, deal pipelines, or sales activity in the same system, HubSpot has a structural advantage that none of the other three tools in this comparison can match.
The free plan is genuinely useful. Unlimited users, contact management, deal pipelines, and basic email marketing are all included at no cost. The Starter plan, which starts at around $20/month for two users, unlocks email sending limits and removes HubSpot branding. For teams already using HubSpot’s CRM (or considering it), the email module is a natural add-on rather than a separate product to evaluate.
Where HubSpot falls short for pure email marketers: the automation builder on lower-tier plans is significantly less capable than ActiveCampaign’s. Complex multi-branch workflows, behavioral triggers, and conditional logic require the Professional plan, which jumps to approximately $800/month — a dramatic price increase that prices out most small teams. If automation depth is your main requirement, HubSpot’s lower plans will frustrate you quickly.
Who it fits: Founding teams of 5–20 people who are running both marketing and sales from the same tool and don’t want to manage two separate platforms. If you want a deeper look at how HubSpot stacks up one-on-one, see the HubSpot vs ActiveCampaign (2026): Which CRM Wins for Your Team Size? breakdown.
Genuine limitation: The free-to-paid pricing jump is steep. The gap between HubSpot’s Starter plan (around $20/mo) and the Professional plan needed for serious marketing automation is one of the largest price jumps in the industry.
ActiveCampaign: Best for Automation-First Teams
ActiveCampaign’s core strength is its automation builder, and it is not a close competition. If you need to build multi-step workflows triggered by specific user behaviors — page visits, link clicks, purchase history, custom events — ActiveCampaign handles complexity that other tools in this group simply cannot match at the same price point.
The Starter plan begins at around $15/month for up to 1,000 contacts, which includes email marketing, marketing automation, and a basic CRM. The Plus plan, at approximately $49/month, adds more advanced features including lead scoring, custom audiences, and deeper CRM capabilities. Unlike HubSpot, the automation functionality you actually need doesn’t require jumping to a dramatically higher tier.
ActiveCampaign also includes a built-in CRM, which means it occupies a middle ground between a pure email tool like Mailchimp and a full-platform CRM like HubSpot. For teams under 30 people who run active sales alongside marketing — and need those two sides to share data — ActiveCampaign handles this integration well without requiring a separate CRM subscription.
The onboarding experience is where ActiveCampaign takes its biggest hit. The platform’s power comes with a learning curve that is steeper than Mailchimp or Brevo. Teams without a dedicated marketing ops person may spend more time in setup than they expect, particularly when building their first complex automation sequences. Implementation typically takes longer than competitors’ marketing materials suggest.
Who it fits: Teams of 10–50 people with a defined marketing function, specifically those doing lead nurturing, segmented campaigns, or behavioral email sequences. For a broader look at where this tool fits alongside other options, the Best Email Marketing Tools for Startups in 2026 guide covers the full landscape.
Genuine limitation: Reporting is functional but not best-in-class. If your team relies heavily on revenue attribution or advanced analytics dashboards, ActiveCampaign’s reporting will feel limited compared to HubSpot’s at similar price points.
Mailchimp: Best for Simple, Low-Friction Sending
Mailchimp has been the default starting point for small business email marketing for years, and it earns that reputation for one specific reason: it is the fastest path from “zero email marketing” to “first campaign sent.” The interface is clean, the template library is large, and the free plan (up to 500 contacts and 1,000 emails/month) is enough to validate whether email marketing is worth investing in before committing to a paid plan.
The Essentials plan starts at approximately $13/month, adding A/B testing, custom branding removal, and higher send limits. Standard and Premium plans add retargeting ads, advanced segmentation, and phone support.
What Mailchimp has moved away from is being a deep automation tool. The platform offers basic automation — welcome sequences, abandoned cart emails, birthday messages — but anything requiring conditional branching, behavioral scoring, or multi-path logic will hit a wall. Mailchimp made a deliberate pivot toward being a “marketing platform” that includes websites, landing pages, and social scheduling, which has made it broader but not deeper.
Who it fits: Solopreneurs, early-stage teams (under 10 people), and businesses that primarily need to send newsletters or simple transactional follow-ups and don’t require sophisticated automation.
Genuine limitation: Mailchimp’s contact-based pricing scales quickly and becomes expensive relative to alternatives as your list grows. At 10,000+ contacts, you’ll often find Brevo or ActiveCampaign are more cost-effective.
Brevo: Best for High-Volume or Transactional Email
Brevo (formerly Sendinblue) takes a fundamentally different pricing approach from the other three tools: it charges based on the number of emails you send each month, not the number of contacts you store. This distinction is significant. If you have a large contact list but send infrequently, or if you need to store many contacts while sending targeted segments, Brevo’s model is dramatically more cost-efficient.
The free plan allows up to 300 emails per day with unlimited contacts stored. The Starter plan begins at approximately $25/month for 20,000 emails/month. This per-email pricing model also makes Brevo uniquely positioned for teams that send both marketing and transactional email (order confirmations, password resets, system notifications) — functionality that usually requires a separate service like SendGrid or Postmark if you’re using the other tools in this comparison.
Brevo’s automation capabilities sit between Mailchimp and ActiveCampaign. It handles multi-step workflows, segmentation, and behavioral triggers well enough for most SMB use cases, without the full depth of ActiveCampaign’s automation engine. The CRM is basic — fine for tracking contacts, but not a replacement for HubSpot or ActiveCampaign’s sales functionality.
Who it fits: E-commerce businesses, SaaS companies with transactional email needs, or any team with a large contact database that sends to segments rather than its entire list every time.
Genuine limitation: Brevo’s deliverability reputation, while improved significantly in recent years, is still occasionally cited as inconsistent on shared IP plans. Teams with very high-stakes email deliverability requirements should test rigorously or consider a dedicated IP. For a head-to-head comparison of ActiveCampaign and HubSpot across all dimensions, see our HubSpot vs ActiveCampaign guide.
Head-to-Head: Key Decision Factors
Automation Depth
ActiveCampaign > HubSpot Professional > Brevo > Mailchimp > HubSpot Starter
If automation is the primary reason you’re buying one of these tools, ActiveCampaign is the clear winner at SMB price points. HubSpot Professional matches or exceeds it, but at roughly 15x the starting price. Mailchimp’s automation is basic. Brevo is a respectable middle ground. For teams specifically evaluating ActiveCampaign and HubSpot head-to-head, our HubSpot vs ActiveCampaign comparison covers segmentation, personalization, and other dimensions in detail.
CRM Integration
HubSpot > ActiveCampaign > Brevo > Mailchimp
HubSpot’s CRM is the best in this group, by a significant margin. If you’re making decisions about both marketing automation and sales CRM simultaneously, HubSpot deserves serious consideration even with its pricing complexity. For more on how these platform decisions interact, the HubSpot vs Notion (2026): Which Tool Is Right for Your Team? article explores the broader context of CRM vs. productivity tool tradeoffs.
Ease of Implementation
Mailchimp > Brevo > HubSpot (free/starter) > ActiveCampaign
Mailchimp is the easiest to start. ActiveCampaign takes the longest to configure properly — which is an acceptable tradeoff if you need its capabilities, but a real cost in time for teams without dedicated marketing operations support.
Pricing Model Fit
The right pricing model depends on your list size and sending frequency:
- Large list, infrequent sending? Brevo’s per-email model saves money.
- Small list, frequent sending? Mailchimp or ActiveCampaign’s contact-based plans are cleaner.
- Growing list, need CRM? HubSpot Starter + CRM bundle is a strong value early.
- Complex automation, medium list? ActiveCampaign’s contact tiers scale predictably.
Free Plan Comparison
- HubSpot Free: Unlimited users, basic CRM, limited email sends — genuinely the most generous free CRM tier available
- Mailchimp Free: 500 contacts, 1,000 emails/month — good for validation only
- Brevo Free: Unlimited contacts, 300 emails/day — best free plan for contact storage
- ActiveCampaign: 14-day trial, no permanent free plan — requires a purchase decision
Recommendation by Team Size
Under 10 people, just starting out: Start with Mailchimp’s free plan or Brevo’s free plan to validate your email marketing before committing. Once you know you’re sending consistently, move to ActiveCampaign if you need automation, or stay on Brevo if transactional email is part of the picture.
10–25 people, growing marketing function: ActiveCampaign at the Plus tier is likely the right call. The automation capabilities will grow with your team’s sophistication, and the CRM functionality is enough to keep sales and marketing aligned without a separate tool.
25–50 people, sales + marketing integration needed: HubSpot Starter (or Professional if budget allows) makes the most sense if your team is evaluating the full go-to-market stack. The unified data model between marketing and sales is worth the premium if those two functions need to share pipeline data.
E-commerce or SaaS with transactional email: Brevo’s model was built for this use case. High contact volume, mixed email types, and predictable per-email pricing make it the default recommendation unless automation complexity demands ActiveCampaign.
Read next: HubSpot vs ActiveCampaign (2026): Which CRM Wins for Your Team Size?
FAQ
Does HubSpot’s free plan include email marketing?
Yes, HubSpot’s free plan includes basic email marketing with up to 2,000 email sends per month. It also includes the full CRM with unlimited contacts and unlimited users, making it unusually generous for a free tier. The main limitation is HubSpot branding on outgoing emails and restricted automation features.
Can ActiveCampaign replace a CRM entirely?
For many small and mid-sized teams, yes. ActiveCampaign includes contact management, deal pipelines, task management, and basic sales automation in its Plus plan. It is not as powerful as a dedicated CRM like HubSpot or Salesforce, but for teams under 30 people running straightforward sales processes, it handles both functions adequately.
Is Brevo good for transactional email?
Brevo is one of the few platforms in this comparison that handles transactional email (order confirmations, password resets, receipts) alongside marketing email natively, without requiring a separate service. This makes it particularly strong for e-commerce and SaaS teams who would otherwise pay for two separate email services.
How does Mailchimp pricing change as my list grows?
Mailchimp’s pricing scales by contact count, and it escalates quickly. At 500 contacts the free plan works, but at 5,000 contacts you’re looking at approximately $75/month on the Standard plan. At that price point, ActiveCampaign and Brevo often offer significantly more automation capability for similar or lower cost — making list growth a natural migration trigger for many Mailchimp users.
Which tool is easiest to set up without a dedicated marketing person?
Mailchimp is consistently the fastest to get a first campaign sent, with the gentlest learning curve. Brevo is also relatively accessible. HubSpot’s free CRM and email setup is straightforward for basic use. ActiveCampaign requires the most configuration to unlock its full value, and teams without someone who can dedicate time to automation setup may not realize the platform’s potential.
Bottom Line
There is no universally “best” tool in this group — but there is a best tool for your specific situation. If the decision still feels unclear after reading this, use the team size framework above as your starting point. Most 5–50 person teams land on either ActiveCampaign (automation-first) or HubSpot (CRM-first), with Brevo as the go-to alternative when email volume and transactional sending are primary concerns.