Two transactional email providers, compared on price, features and ratings, so you can pick fast.
MailerSend wins developer experience and sending APIsOneSignal Email wins compliance and analytics
Updated July 2026
At a glanceMailerSendOneSignal Email
Entry price$7Free
Cost per 1k @ 100k—$1.39
Free tier500/mo10,000/mo
G2 rating4.14.7
THE VERDICT
MailerSend wins on developer experience and sending APIs. OneSignal Email wins on compliance and analytics.
MailerSend starts at $7 versus OneSignal Email's Free. OneSignal Email rates higher with developers (4.7 vs 4.1 on G2). Pick based on volume and team, and the scorecard below breaks down where each one leads.
Which should you choose?
Pick MailerSend
✓Teams that need EU-hosted transactional email data by default for compliance or customer-trust reasons
✓Budget-conscious developers who want a real free tier plus a cheap ($7/mo) entry-level paid plan
✓Teams that want built-in email address verification without adding a separate vendor
✓Apps that need inbound email parsing (support tickets, reply-by-email flows) alongside outbound sending
Winner cells are tinted, green where MailerSend leads, violet where OneSignal Email does.
capability
MailerSend
OneSignal Email
Pricing
Starting paid plan
$7/mo
$19/mo
Cost per 1k @ 100k
—
$1.39
Pricing model
Hybrid
Hybrid
Overage
$1.50 per 1,000 emails beyond the plan's included allowance
$1.50 / 1,000 sends
Deliverability
Dedicated IP
Plan-gated
Plan-gated
Deliverability tooling
Yes
Yes
Automated IP warmup
Yes
Yes
Suppression management
Yes
Yes
SPF / DKIM / DMARC
Yes
Yes
API & sending
Transactional API
Yes
Yes
Marketing campaigns
No
Yes
SMTP relay
Yes
—
Inbound routing
Yes
—
Dynamic templates
Yes
Yes
Batch send
Yes
Yes
Scheduled send
Yes
Yes
Developer experience
Official SDKs
PHP, Laravel, Node.js, Go, Python, Ruby, Java
Node.js, Python, Java, Go, PHP, Ruby, C#, Rust
Event webhooks
Yes
Yes
Drag-and-drop editor
Yes
Yes
Custom HTML editor
Yes
Yes
Email validation
Yes
—
Log retention
Plan-gated: 1 day (Free/Hobby), 7 days (Starter), 30 days (Professional)
—
Sandbox / test mode
Yes
—
Analytics
Open / click tracking
Yes
Yes
Analytics dashboard
Yes
Yes
A/B testing
Plan-gated
Yes
Compliance
EU data residency
Yes
—
SOC 2
No
Yes
HIPAA
No
BAA
GDPR
Yes
Yes
ISO 27001
—
Yes
Support
Support channels
Limited support on Free; 24/7 email support from Hobby; live chat plus priority support on Starter and Professional; dedicated account manager on Professional
Email, Community
24/7 support
Yes
Yes
Support SLA
—
Plan-gated
Migration assistance
Plan-gated
—
FAQ
Common questions
MailerSend starts at $7 versus OneSignal Email's Free. Because pricing models differ by tier, the cheaper option depends on your monthly volume, so compare the pricing rows in the scorecard above.