The Short Answer (Before We Dive In)
If you're a brand-new business with fewer than 500 contacts and just want to send newsletters, start with Mailchimp's free plan. If you're a creator, coach, or service business focused on growing an email list, ConvertKit is your move. If you're running serious follow-up sequences with lead scoring and CRM-style automation, ActiveCampaign is worth every penny.
The rest of this guide breaks down exactly why, with pricing, real automation examples, and the specific business types each tool serves best.
Each Tool in Plain English
- 500 contacts free, then $13/mo
- Drag-and-drop email builder
- Basic automated sequences
- Built-in audience analytics
- Website + landing page builder
- Advanced automation flows cost more
- Support limited on free plan
- 1,000 subscribers free
- Visual automation builder
- Tag-based segmentation
- Sequence builder (autoresponder)
- Landing pages included
- Less template variety than Mailchimp
- No built-in CRM
- Advanced conditional automation
- Built-in CRM + deal tracking
- Lead scoring
- SMS + email in same flows
- Deep Zapier integration
- No free plan (14-day trial only)
- Learning curve is steeper
Feature-by-Feature Breakdown
Here's how each tool stacks up on the features that matter most to a small business owner:
| Feature | Mailchimp | ConvertKit | ActiveCampaign |
|---|---|---|---|
| Free plan | Yes (500 contacts) | Yes (1,000 contacts) | No (14-day trial) |
| Starting paid price | $13/mo | $15/mo | $29/mo |
| Email templates | 100+ templates | Minimal templates | 125+ templates |
| Automation builder | Basic (linear flows) | Visual (moderate depth) | Advanced (if/else branching) |
| Segmentation | Groups + tags | Tag-based (very flexible) | Conditions + lead scoring |
| CRM / deal tracking | No | No | Built-in CRM |
| Landing pages | Yes | Yes (included) | Yes (higher tiers) |
| SMS messaging | No | No | Yes |
| Zapier integration | Yes | Yes | Yes (deep) |
| Ease of use (1-10) | 9 / 10 | 8 / 10 | 6 / 10 |
| Best support tier | Email + chat (paid) | Email + chat | Email + chat + onboarding |
Which Tool Is Right for Your Business?
Choose Mailchimp if…
- You're just starting out
- You have fewer than 500 contacts
- You want to send a monthly newsletter
- You run a restaurant, retail shop, or local service
- You want the simplest possible setup
Choose ConvertKit if…
- You're growing an audience or email list
- You sell digital products, courses, or consulting
- You want clean, simple automation sequences
- You're a photographer, coach, or real estate agent
- You want good landing pages without extra cost
Choose ActiveCampaign if…
- You run complex follow-up sequences (law firm, dentist, insurance)
- You want email + CRM in one tool
- You need lead scoring and conditional logic
- Your average customer takes weeks to convert
- You want SMS + email in the same flow
Not sure? The safest starting move is Mailchimp's free plan. You can always migrate to ActiveCampaign later when your automation needs grow. Migrating 500 contacts takes about 30 minutes.
What You'll Actually Pay
Marketing pages hide the real costs. Here's what you actually pay as your list grows:
| List Size | Mailchimp | ConvertKit | ActiveCampaign |
|---|---|---|---|
| 0–500 contacts | Free | $15/mo (free to 1K) | $29/mo |
| 501–1,000 contacts | $13/mo | Free | $29/mo |
| 1,001–2,500 contacts | $27/mo | $25/mo | $49/mo |
| 2,501–5,000 contacts | $45/mo | $50/mo | $79/mo |
| 5,001–10,000 contacts | $75/mo | $79/mo | $139/mo |
Prices approximate as of March 2026. Check each platform for current rates.
For most small businesses sending fewer than 2,500 emails per month, the cost difference between Mailchimp and ConvertKit is negligible. ActiveCampaign's premium is justified when you're running automation sequences that would take hours to do manually each week, if you're saving even 2 hours/week at $50/hour, the tool pays for itself several times over.
Same budget. Different results. Three Main Street AI readers each chose a different tool. Here's what happened after 90 days:
Each chose correctly based on their use case. Maria didn't need to pay $29/mo for features she'd never touch. Meridian Law's complex follow-up sequences would have been impossible to replicate in Mailchimp's basic automation tier.