I was comparing email marketing costs for a small ecommerce setup recently, and one question kept bothering me:
How much does a free email marketing plan actually let you do in 2026?
Imagine managing 200 subscribers and sending four newsletters every month. Nothing complicated. Just product updates, occasional promotions, and some automated follow-ups.
At first glance, both Mailchimp and MailerLite appear suitable.
But when I checked current sending allowances, I found a meaningful difference.
MailerLite permits 2,500 monthly emails on its free plan. Mailchimp permits 500.
That changes how I would approach platform selection, especially for developers building email workflows into small applications.
Let's break down actual numbers.
1. Free email plans became more restrictive in 2026
MailerLite updated its free plan on June 16, 2026.
Subscriber capacity dropped from 500 to 250, while monthly sending allowances decreased from 12,000 to 2,500 emails.
That represents:
- 50% fewer permitted subscribers
- 79.2% reduction in monthly sending capacity
MailerLite also introduced additional free-plan capabilities, including more editing options and two account seats.
Mailchimp currently permits 250 contacts and 500 monthly emails, subject to a 250-email daily sending limit.
Here is my comparison based on published vendor documentation.
| Feature | MailerLite | Mailchimp |
|---|---|---|
| Free contact limit | 250 | 250 |
| Free monthly sends | 2,500 | 500 |
| Daily free sending limit | Check account terms | 250 |
| Entry paid plan | Comfort | Essentials |
| Advertised starting price | $12/month | $13/month |
Sources: MailerLite pricing and Mailchimp pricing.
Prices are USD starting rates, not personalized quotations. Subscriber tiers, promotions, taxes, billing terms, and regional pricing can affect final costs.
2. I calculated how quickly each free plan runs out
Consider a hypothetical newsletter application with these requirements:
Active subscribers: 200
Campaigns per month: 4
Recipients per campaign: 200
Monthly emails = 200 × 4
= 800
MailerLite:
Monthly allowance: 2,500
Monthly requirement: 800
Remaining capacity = 1,700
Usage = 32%
Mailchimp:
Monthly allowance: 500
Monthly requirement: 800
Shortfall = 300 emails
Usage required = 160% of allowance
Both platforms accommodate 200 contacts, but only MailerLite supports this specific sending workload on its free tier.
Something interesting happens when I extend calculations across a full year.
Annual sending requirement:
800 × 12 = 9,600 emails
MailerLite free annual capacity:
2,500 × 12 = 30,000 emails
Mailchimp free annual capacity:
500 × 12 = 6,000 emails
These annual totals assume unchanged monthly allowances and no unused capacity rolling forward.
For this use case, MailerLite provides enough free sending capacity, while Mailchimp requires a change in plan or sending strategy.
That is a practical difference, not merely a pricing-page comparison.
3. Starting prices tell only part of a story
MailerLite Comfort starts at $12 monthly. Mailchimp Essentials advertises a $13 monthly starting rate.
For illustration, assuming these rates remain applicable for twelve months:
MailerLite:
$12 × 12 = $144/year
Mailchimp:
$13 × 12 = $156/year
Difference:
$156 - $144 = $12/year
Would I recommend migrating an entire email system to save $12 annually?
Probably not.
These calculations also do not establish that both plans provide identical contact capacity or functionality.
A production email setup might depend on signup forms, CRM synchronization, scheduled campaigns, customer segments, event-driven automations, and analytics integrations.
Migrating those workflows can cost significantly more than a small subscription difference.
I would treat subscription pricing as one variable in a larger total-cost calculation.
4. What about AI-powered email features?
Both products increasingly emphasize automation and AI-assisted workflows.
MailerLite Comfort includes AI writing assistance, smart sending, and advanced campaign testing capabilities.
These features can be useful, but I prefer measuring productivity gains rather than assuming every AI feature produces better marketing results.
Imagine paying $20 extra monthly for a hypothetical premium capability that saves two working hours.
Monthly additional cost: $20
Time saved: 2 hours
Internal hourly value: $25
Estimated labor value:
2 × $25 = $50
Net estimated benefit:
$50 - $20 = $30/month
Under those assumptions, upgrading makes financial sense.
But if a feature saves only ten minutes monthly, calculation changes dramatically.
I would also measure conversion performance, revenue per recipient, and campaign preparation time.
AI-generated subject lines alone are not evidence of improved ROI.
5. What developers should check before migrating
If I were integrating an email platform into a SaaS application, I would start with a technical audit.
My checklist would include:
- API compatibility: Can existing subscriber operations and integrations be recreated?
- Webhook support: Can subscription changes and other important events reach my backend?
- Automation portability: Which workflows must be rebuilt manually?
- Authentication: Are SPF, DKIM, and DMARC configured correctly after migration?
- Data integrity: Can consent records, subscriber fields, segments, and suppression lists be transferred safely?
- Usage limits: How do subscriber tiers, sending quotas, and plan restrictions change as volume grows?
I would test critical workflows in a staging environment before moving production traffic.
A cheaper subscription is not necessarily cheaper infrastructure.
For broader research, I also refer to email marketing platform alternatives when exploring products beyond these two vendors.
6. My conclusion after running numbers
MailerLite looks particularly attractive for smaller teams with modest subscriber lists and relatively frequent newsletters.
Mailchimp may remain a sensible choice when existing integrations, established automations, and migration complexity outweigh potential savings.
What surprised me most was not a $1 difference between advertised starting prices.
It was how dramatically free sending allowances differ.
For my 200-subscriber example, one platform accommodates four newsletters monthly, while another does not.
My advice is simple: calculate your sending requirements before comparing feature lists.
A few lines of arithmetic can reveal more about platform suitability than dozens of marketing claims.
I'm curious how other developers handle this.
When choosing an email platform for a side project or SaaS application, do you prioritize free sending capacity, API flexibility, automation features, or long-term pricing?
Research note: Pricing and plan limits checked against official MailerLite and Mailchimp documentation on October 28, 2026. Examples are hypothetical and calculations are illustrative, not reported client outcomes. This article was prepared with AI writing assistance and should be fact-checked by its publishing author.
Top comments (1)
I'd also check what happens when the quota runs out. Does a scheduled campaign wait, fail, or send to only part of the list? The 800-email calculation is a useful starting point, but I'd leave room for welcome emails and follow-ups so a busy week doesn't interrupt them.