OneSignal Email vs SparkPost

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

OneSignal Email wins editor tools and supportSparkPost wins developer experience and sending APIs

Updated July 2026

At a glanceOneSignal EmailSparkPost
Entry priceFree$20
Cost per 1k @ 100k$1.39$0.3
Free tier10,000/mo1,000/mo
G2 rating4.74.0

THE VERDICT

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

OneSignal Email starts at Free versus SparkPost's $20. OneSignal Email rates higher with developers (4.7 vs 4.0 on G2). Pick based on volume and team, and the scorecard below breaks down where each one leads.

Which should you choose?

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 →

Pick SparkPost

✓You send enterprise-scale, high-volume email and need deep deliverability analytics
✓You want predictive deliverability and detailed engagement reporting
✓You are a SaaS, fintech, or martech company with strict deliverability needs
✓You need both transactional and multichannel sending at scale
Set up SparkPost with Courier →

Feature by feature

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

capability
OneSignal Email
SparkPost
Starting paid plan
$19/mo
$15/mo
Cost per 1k @ 100k
$1.39
$0.3
Pricing model
Hybrid
Hybrid
Overage
$1.50 / 1,000 sends
~$1.00 per 1,000 (Starter)
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
Yes
SMTP relay
—
Yes
Inbound routing
—
Yes
Dynamic templates
Yes
Yes
Batch send
Yes
Yes
Scheduled send
Yes
Yes
Official SDKs
Node.js, Python, Java, Go, PHP, Ruby, C#, Rust
Node.js, Python, PHP, Java, Go, Elixir
Event webhooks
Yes
Yes
Drag-and-drop editor
Yes
—
Custom HTML editor
Yes
Yes
Email validation
—
Add-on
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
—
GDPR
Yes
Yes
ISO 27001
Yes
Yes
Support channels
Email, Community
Online/Email support; TAM on Enterprise
24/7 support
Yes
—
Support SLA
Plan-gated
Plan-gated

FAQ

Common questions

OneSignal Email starts at Free versus SparkPost's $20. 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

Related comparisons

OneSignal Email vs PostmarkEmail→Mailgun vs OneSignal EmailEmail→OneSignal Email vs SendGridEmail→AWS SES vs OneSignal EmailEmail→Mailjet vs OneSignal EmailEmail→Mandrill vs OneSignal EmailEmail→

Why not both?

Use both behind one API.

Route OneSignal Email, SparkPost, 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. SparkPost is a Bird (MessageBird) product.

Multichannel Notifications Platform for SaaS