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Postmark vs Customer.io

Tagline
Postmark: Transactional email service
Customer.io: Messaging platform for online businesses
Pricing Model
Postmark: paid
Customer.io: paid
Starting Price
Postmark: $15/mo
Customer.io: $100/mo
Free Plan
Postmark: No
Customer.io: No
GitHub Stars
Postmark:
Customer.io:
npm Downloads/wk
Postmark:
Customer.io:
GitHub Forks
Postmark:
Customer.io:
Open Issues
Postmark:
Customer.io:
Tags
Postmark: transactional, deliverability, api
Customer.io: marketing, automation, events

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