Mailchimp
500 contacts
free subscriber limit
Single-step on free; multi-step on paid
automation
100+ pre-built
templates
1,000 emails/month (free)
send limit
Available on paid plans
a/b testing
Free; Essentials from $13/mo
pricing
Brevo (formerly Sendinblue)
Unlimited contacts
free subscriber limit
Up to 2,000 contacts in workflows (free)
automation
40+ responsive templates
templates
300 emails/day (free)
send limit
Available on Business plan ($65/mo)
a/b testing
Free; Starter from $9/mo
pricing
ConvertKit (now Kit)
10,000 subscribers
free subscriber limit
Limited on free; visual automation on paid
automation
Minimal (text-focused by design)
templates
Unlimited broadcasts (free)
send limit
Subject line A/B on Creator plan
a/b testing
Free; Creator from $25/mo
pricing
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