Constant Contact vs Customer.io
Compare Constant Contact and Customer.io on features, pricing, and buyer fit using the same researched criteria.
Constant Contact
SMB and local-business email marketing with event tools and brand recognition across North America.
Best for
- • Local SMBs and nonprofits needing brand-familiar email marketing
- • Teams running events alongside email campaigns
- • Buyers who value phone/support culture and NA brand recognition
Starting from $12.00/user/mo
No free plan
VS
Our verdict
There is no universal winner between Constant Contact and Customer.io. Choose Constant Contact when Local SMBs and nonprofits needing brand-familiar email marketing. Choose Customer.io when Product-led teams sending event-driven multi-channel messages. Criterion scores come from approved SoftwareGlimpse editorial assessments and first-party research — not hands-on lab testing.
Constant Contact is better for
- ✓ Landing pages
Customer.io is better for
- ✓ Automation
- ✓ Segmentation
- ✓ Integrations
- ✓ AI features
Tie
- • Templates
- • Analytics
Choose Constant Contact if: Local SMBs and nonprofits needing brand-familiar email marketing
Choose Customer.io if: Product-led teams sending event-driven multi-channel messages
Customer.io
Product-led event-driven messaging across email, push, SMS, and in-app — MAP-adjacent to classic ESPs.
Best for
- • Product-led teams sending event-driven multi-channel messages
- • SaaS/apps needing behavioral onboarding and lifecycle messaging
- • Teams comparing Braze-class engagement with a mid-market entry
Starting from $100.00/user/mo
No free plan
Constant Contact vs Customer.io pricing
Constant Contact researched starting price from $12/mo. Customer.io researched starting price from $100/mo. Affiliate economics excluded.
Constant Contact
From $12.00/user/mo
Customer.io
From $100.00/user/mo
Constant Contact
Starting from $12.00/user/mo
Free trial available
- Lite$12.00/mo
- From $12/mo at ≤500 contacts (research).
- included contacts entry: 500
- StandardPopular$35.00/mo
- From $35/mo at ≤500 contacts (research).
- included contacts entry: 500
- Premium$80.00/mo
- From $80/mo at ≤500 contacts (research).
- included contacts entry: 500
Customer.io
Starting from $100.00/user/mo
Free trial available
- EssentialsPopular$100.00/mo
- From $100/mo — 5,000 profiles / 1M emails/mo (research).
- included profiles entry: 5000
- included emails monthly: 1000000
- Premium$1,000.00/mo
- From $1,000/mo — elevated limits and premium integrations (research).
- EnterpriseCustom
- Custom infrastructure, compliance, and support.
Estimate your team cost
Monthly estimate from verified per-seat list pricing. Confirm on the vendor site before purchasing.
Constant Contact
$180.00/mo
Customer.io
$1,500.00/mo
+$1,320.00/mo — Customer.io costs more
Verified monthly unit prices · Aug 17, 2026
Prices in USD
Shown per user / month from verified list pricing.
Plans can change
Confirm live vendor rates before purchasing.
Add-ons may apply
Calling, SMS, or usage fees can add cost.
Independence
Affiliate status never changes pricing outcomes.
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