Ghost
ghost.orgThe leading open source membership publishing reference.
Alternatives
6 alternatives to Substack
These products are placed in Newsletter & email platforms alongside Substack. The order reflects how much of Substack’s category footprint each one covers. It is not a ranking, and no company can pay to appear here.
Back to the Substack record →Reference
Kit
kit.comA major creator email and automation platform.
Postmark
postmarkapp.comDeliverability-focused transactional email.
Resend
resend.comDeveloper-first transactional email.
SendGrid
sendgrid.comLong-standing transactional email provider.
beehiiv
beehiiv.comA defining newsletter growth and monetization platform.
How this list is built
Category placement comes from the classifier and human review, not from a paid submission. A product missing from this page has either not entered the Niched research set or carries no category assignment yet. Absence is never evidence against it. Read the method or submit a missing product.