Mailgun vs OneSignal Email

Two transactional email providers, compared on price, features and ratings, so you can pick fast.

Mailgun wins developer experience and sending APIsOneSignal Email wins editor tools and support

Updated July 2026

At a glanceMailgunOneSignal Email
Entry price$0.80Free
Cost per 1k @ 100k$0.9$1.39
Free tier100/day10,000/mo
G2 rating4.54.7

THE VERDICT

Mailgun wins on developer experience and sending APIs. OneSignal Email wins on editor tools and support.

Mailgun starts at $0.80 versus OneSignal Email's Free. OneSignal Email rates higher with developers (4.7 vs 4.5 on G2). Pick based on volume and team, and the scorecard below breaks down where each one leads.

Which should you choose?

Pick Mailgun

✓You want a developer-first email API with strong deliverability tooling
✓You send high-volume transactional email and want usage-based pricing
✓You need EU data residency, log retention, and email validation add-ons
✓You are in the Sinch ecosystem or want enterprise deliverability consulting
Set up Mailgun with Courier →

Pick OneSignal Email

✓You already use OneSignal for push or in-app and want to add email from the same dashboard
✓You want a free tier to start sending marketing or transactional email
✓You need to manage subscribers across push, in-app, and email in one place
✓You want a simple setup rather than a dedicated deliverability or template platform
Set up OneSignal Email with Courier →

Feature by feature

Winner cells are tinted, green where Mailgun leads, violet where OneSignal Email does.

capability
Mailgun
OneSignal Email
Starting paid plan
$15/mo
$19/mo
Cost per 1k @ 100k
$0.9
$1.39
Pricing model
Hybrid
Hybrid
Overage
from $1.10 / 1,000 emails
$1.50 / 1,000 sends
Dedicated IP
Plan-gated
Plan-gated
Deliverability tooling
Yes
Yes
Automated IP warmup
Yes
Yes
Suppression management
Yes
Yes
SPF / DKIM / DMARC
Yes
Yes
Transactional API
Yes
Yes
Marketing campaigns
—
Yes
SMTP relay
Yes
—
Inbound routing
Yes
—
Dynamic templates
Yes
Yes
Batch send
Yes
Yes
Scheduled send
Yes
Yes
Official SDKs
Python, Ruby, PHP, Java, Node.js, Go
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
Add-on
—
Log retention
1-30 days
—
Sandbox / test mode
Yes
—
Open / click tracking
Yes
Yes
Analytics dashboard
Yes
Yes
A/B testing
Yes
Yes
EU data residency
Yes
—
SOC 2
Yes
Yes
HIPAA
BAA
BAA
GDPR
Yes
Yes
ISO 27001
Yes
Yes
Support channels
Email/ticket, Chat, Phone
Email, Community
24/7 support
—
Yes
Support SLA
Plan-gated
Plan-gated

FAQ

Common questions

Mailgun starts at $0.80 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.

Keep comparing

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Why not both?

Use both behind one API.

Route Mailgun, OneSignal Email, or both, and switch providers without changing your code. Courier sits in front of every channel.

Start building freeRead the docs

Pricing, plans and feature availability as of July 2026 and may change. Ratings are aggregated from public review platforms. Mailgun is a Sinch product.

Multichannel Notifications Platform for SaaS