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★ Winner
Resend
Email Marketing
★ 4.5
rating
$20/mo (Pro, 50K emails)
starts at
Free
tier
VS
Substack
Email Marketing
★ 4.2
rating
N/A
Quick verdict
Resend wins for developers who need a modern email api with excellent dx for.
Resend has a 4.5 rating vs 4.2 for Substack. Substack is the better pick if you need writers who want the simplest path to publishing a newsletter with paid subscrip.
Performance overview
Resend
Substack
Overall
4.54.2
Ease of use
4.04.7
Value for money
4.94.2
Features
Side-by-side comparison
Choose based on your needs
Choose Resend if...
Best for
Developers who need a modern email API with excellent DX for transactional and marketing email.
Best developer experience in email APIs
React Email produces responsive templates with React components
Choose Substack if...
Best for
Writers who want the simplest path to publishing a newsletter with paid subscriptions.
Zero monthly cost — only pay when you earn
Simplest writing and publishing experience available