beehiiv
beehiiv focuses on newsletter editing, subscriptions, and analytics.
What it does
beehiiv combines newsletter sites, email delivery, and growth tools.
When to use it
For a topic newsletter, place signup and past issues in one destination.
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Buttondown
Buttondown focuses on writing and sending newsletters.
Ghost
Ghost focuses on running a blog and member newsletter.
Grammarly
Grammarly focuses on English spelling, grammar, and tone suggestions.