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Overage / Compare / Email APIs

Amazon SES vs Customer.io pricing

Verified 2026-10-24 (1 day ago)Source: Amazon SES: aws.amazon.com/ses/pricing/, Customer.io: customer.io/pricingVerified shows the older of the two.

Monthly cost at three volumes

Monthly cost of Amazon SES and Customer.io at three volumes and at your own
VolumeAmazon SESCustomer.io
small5K emails sent$0.50 / moÀ la carte$100 / moEssentials
growing50K emails sent$5 / moÀ la carte$100 / moEssentials
scale500K emails sent$50 / moÀ la carte$100 / moEssentials
your volumeset above$5 / moÀ la carte$100 / moEssentials

Each cell is the cheapest feasible plan, or the chosen model, at that volume, from the shared Overage cost function. "Cheapest model" only considers models with both an input and an output price listed. Volumes are example scenarios you can edit.

Tiers, aligned by position

Tiers of Amazon SES and Customer.io aligned by position: free, entry, mid, top
PositionAmazon SESCustomer.io
Free$0 / moEssentialsno tier
Entry$105 / moPro$100 / moEssentials · 1,000,000 emails sent / mo
Mid$500 / moEnterprise$1,000 / moPremium
Top$0 base + usageÀ la carteContact salesEnterprise

Tightest rate limit

Tightest documented rate limit of each service
MeasureAmazon SESCustomer.io
Tightest limitunlistedunlisted

Changes in the last 90 days

No changes recorded.

No change detected for either service in the last 90 days.