ConvertKit vs Customer.io Pricing (2026)

ConvertKit vs Customer.io

Marketing Automation pricing comparison · 2026

ConvertKit pricing ranges from $0–$66/month, while Customer.io ranges from $0–$1000/month. ConvertKit is typically 94% more affordable, though your actual cost depends on tier and team size.

Marketing Automation

ConvertKit

$0–$66
/month
3 plans · Free tier
Full pricing breakdown →
VS
Marketing Automation

Customer.io

$0–$1000
/month
4 plans · Free tier
Full pricing breakdown →

ConvertKit and Customer.io both operate in the marketing automation category. This page compares their list pricing.

Plan-by-Plan Pricing

Plan ConvertKit Customer.io
Newsletter Free /month Free /month
Creator $33 /month $100 /month
Pro $66 /month $1K /month
Enterprise Custom

Cost at Scale

Total cost of ownership — licenses, implementation, and hidden costs included.

ConvertKit

3 scenarios
$0/month ($0/year)
New Creator (Under 10,000 Subscribers)
on the Newsletter plan
$33/month ($396/year)
Growing Creator on Creator Plan
on monthly billing or $390/year ($32.50/month effective) with annual billing
$66/month ($792/year)
Professional Creator or Team on Pro
on monthly billing or $790/year ($65.83/month effective) with annual billing

Customer.io

2 scenarios
$145/month
Growing SaaS (10,000 Profiles)
Essentials base $100/month + $45 for 5,000 additional profiles at $0.009 each
$1,000
E-commerce App (50,000 Profiles)
+/month - Premium tier with custom volume for 50,000 profiles across multiple object types, plus SMS costs

Market Intelligence

ConvertKit

Median annual cost
$1,164
Based on
142 deals

Customer.io

Median annual cost
$6,500
Based on
14 deals

Hidden Costs

Beyond the sticker price — what catches buyers off guard.

ConvertKit 11 hidden costs

high
Manual Downgrade Required 10-30% of license costs
high
Unexpected price increases without adequate notice 50% of license costs
critical
Account suspension and termination without warning $500-$5,000
medium
Confusing and inconsistent pricing display 15-25% of license costs
medium
Difficult account cancellation and deletion process $100-$500
See all ConvertKit hidden costs →

Customer.io 2 hidden costs

high
Profile-based billing for inactive users 15-25% of license costs
critical
Continued profile creation after removal $500-$2,000
See all Customer.io hidden costs →