I launched NewsletterStack yesterday and already shipping updates.
Added two free tools today:
- Newsletter Cost Calculator – compare pricing across Beehiiv, Substack, Kit, Ghost, and more based on your audience size
- Email Authentication Checker – verify your SPF, DKIM, and DMARC setup so your emails actually reach inboxes
NewsletterStack (←link to launch arena) is live here in Launch Arena. If this sounds helpful, would really appreciate an upvote to help other creators discover it.
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