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Email Marketing

Customer.io vs SparkPost: Pricing Comparison 2026

Side-by-side pricing comparison of Customer.io and SparkPost. See all plans, features, and costs at a glance.

Bottom line: SparkPost starts at $49/mo, making it $51/mo cheaper than Customer.io ($100/mo). SparkPost offers a free plan.

Last updated: July 6, 2026

Data compiled by Arthur Jacquemin
Updated July 6, 2026
Try Customer.io freeTry SparkPost freePrice updated 11d agoUpdated this month
Best Value

SparkPost - SparkPost offers a free plan, starts at $51/mo lower ($49/mo vs $100/mo).

Customer.io vs SparkPost: Quick Pricing Facts

FeatureCustomer.ioSparkPost
Starting Price$100/mo$49/mo
Number of Plans33
Free TierNoYes
Pricing Modelusage-basedusage-based
Annual DiscountN/AN/A

SparkPost is the more affordable option, starting at $49/mo compared to Customer.io's $100/mo. Both are Email Marketing tools with 6 combined pricing plans and 17 features compared.

SparkPost stands out with a free plan for getting started.

Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Email Marketing needs.

Pricing Plans
Customer.io
Customer.io
Try free
SparkPost
SparkPost
Try free
Tier 1
Essentials
$100/month
Start with Essentials
Free
$0/monthCheapest
Includes
  • 15 AI agent messages/day
  • 10 emails/day
  • 5 SMS/day
  • Company intelligence
  • Public API access
Start with Free
Tier 2
Premium
$1000/month
Start with Premium
Pro
$49/monthCheapest
Includes
  • Unlimited AI agent messages
  • 10,000 emails/month
  • 1,000 SMS/month
  • CRM + pipeline management
  • Workflow automation
  • Team collaboration
Start with Pro
Tier 3
Enterprise
Custom pricing
Start with Enterprise
Enterprise
Custom pricing
Includes
  • Everything in Pro
  • Unlimited channels
  • Custom AI agents
  • SSO / SAML
  • Dedicated support
  • SLA guarantee
Start with Enterprise

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Customer.io

Automated messaging platform for targeted customer engagement

View all Customer.io plans

SparkPost

Enterprise email delivery and analytics platform

View all SparkPost plans

Frequently Asked Questions: Customer.io vs SparkPost

Which is cheaper, Customer.io or SparkPost?
As of July 2026, SparkPost starts at a lower price point. Customer.io starts at $100/mo while SparkPost starts at $49/mo. However, the best value depends on the features you need at each tier.
How many pricing plans does Customer.io have vs SparkPost?
Customer.io offers 3 pricing plans, while SparkPost offers 3 plans. More plans typically means more flexibility to match your exact needs and budget.
Does Customer.io or SparkPost offer a free plan?
SparkPost offers a free plan, while Customer.io does not. If budget is a concern, SparkPost lets you get started at no cost.
Does Customer.io or SparkPost offer custom enterprise pricing?
Yes, both Customer.io and SparkPost offer custom enterprise pricing tiers with quote-based pricing. Contact each vendor for a tailored quote.
How do Customer.io and SparkPost compare for Email Marketing?
Both Customer.io and SparkPost are Email Marketing tools. Customer.io offers 3 plans starting at $100/mo, while SparkPost offers 3 plans starting at $49/mo. Review the feature breakdowns above to see which better fits your Email Marketing needs.
AI Recommendations

Sources

  1. Customer.io Official Pricing- Vendor pricing page
  2. SparkPost Official Pricing- Vendor pricing page

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