Email APIs · side by side
Klaviyo vs SendPulse Transactional Email
Compare Klaviyo, SendPulse Transactional Email by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
These providers bill in different units. Each estimate uses its own workload; there is no same-volume price winner.
Klaviyo
SendPulse Transactional Email
Klaviyo
Custom / not listed
Custom / unlisted usage pricing · 10K profiles
SendPulse Transactional Email
$0 / mo
Basic · 0 emails
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Email APIs overview & pricing
| Email APIs | Klaviyo | SendPulse Transactional Email |
|---|---|---|
| Provider | Klaviyo | SendPulse |
| Billing unit | profiles | emails |
| Plan at selected usage | Custom / unlisted usage pricing | Basic |
| Monthly estimate | Custom / not listed | $0/mo |
| Workload | 10K profiles | 0 emails |
| Free access | Limited free plan | 12,000 emails/month (rate-limited to 50 emails/hour, up to 2 sending domains) |
| Published plans | Free | Basic, Pro, Enterprise, Pay As You Go |
| Prices checked | 2026-10-08 | 2026-10-08 |
- Klaviyo
- Klaviyo
- SendPulse Transactional Email
- SendPulse
- Klaviyo
- profiles
- SendPulse Transactional Email
- emails
- Klaviyo
- Custom / unlisted usage pricing
- SendPulse Transactional Email
- Basic
- Klaviyo
- Custom / not listed
- SendPulse Transactional Email
- $0/mo
- Klaviyo
- 10K profiles
- SendPulse Transactional Email
- 0 emails
- Klaviyo
- Limited free plan
- SendPulse Transactional Email
- 12,000 emails/month (rate-limited to 50 emails/hour, up to 2 sending domains)
- Klaviyo
- Free
- SendPulse Transactional Email
- Basic, Pro, Enterprise, Pay As You Go
- Klaviyo
- 2026-10-08
- SendPulse Transactional Email
- 2026-10-08
Email APIs monthly cost
Different workloads, separate estimates
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Which email providers fit your needs?
Klaviyo features & plan notes
- E-commerce data
- Omnichannel
- Shopify ecosystem
SendPulse Transactional Email features & plan notes
- Supports SMTP relay and REST API integration
- Generous free tier offering 12,000 emails per month
- SPF, DKIM, and DMARC domain authentication support
- Delivery statistics, unsubscribe management, and webhook notifications
- Dedicated IP addresses available on higher-tier plans
- 50 messages per hour
- DKIM, SPF and DMARC records
- 2 sending domains
- Custom tracking domain
- SMTP relay sending
- Sending via API
How to compare email providers
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Browse Email APIs pricing