Campaign Monitor vs Customer.io
Compare Campaign Monitor and Customer.io on features, pricing, and buyer fit using the same researched criteria.

Campaign Monitor
Design-led email marketing by Marigold with contact-tier Lite, Essentials, Premier, and Enterprise.
Best for
- • Brand-conscious teams prioritizing email design/templates
- • Agencies needing client/subaccount tooling (higher plans)
- • Marketers wanting AI writer/booster and benchmarked campaign insights
Starting from $13.00/user/mo
No free plan
VS
Our verdict
There is no universal winner between Campaign Monitor and Customer.io. Choose Campaign Monitor when Brand-conscious teams prioritizing email design/templates. 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.
Campaign Monitor is better for
- ✓ Templates
- ✓ Landing pages
Customer.io is better for
- ✓ Automation
- ✓ Segmentation
- ✓ Integrations
- ✓ AI features
Tie
- • Analytics
Choose Campaign Monitor if: Brand-conscious teams prioritizing email design/templates
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
Campaign Monitor vs Customer.io pricing
Campaign Monitor researched starting price from $13/mo. Customer.io researched starting price from $100/mo. Affiliate economics excluded.
Campaign Monitor
From $13.00/user/mo
Customer.io
From $100.00/user/mo
Campaign Monitor
Starting from $13.00/user/mo
Free trial available
- Lite$13.00/mo
- From $13/mo at 0–500 contacts; send volume capped (~2,500 at lowest band).
- included contacts entry: 500
- max email sends monthly: 2500
- EssentialsPopular$31.00/mo
- From $31/mo at 0–500 contacts; unlimited monthly email sends.
- included contacts entry: 500
- Premier$171.00/mo
- From $171/mo at 0–500 contacts; unlimited sends; premier support features.
- included contacts entry: 500
- EnterpriseCustom
- Custom — large lists / security / billing; contact sales (50,001+ bands also push sales).
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.
Campaign Monitor
$195.00/mo
Customer.io
$1,500.00/mo
+$1,305.00/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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