Observed arrival · 2026-10-12
Clarto’s month-by-month email cost ledger
A free calculator estimates 12- and 24-month costs for Kit, beehiiv, systeme.io, and Mailchimp as your list grows.
- For
- Newsletter operators comparing platform costs
- Worth noticing
- It identifies when a free tier is outgrown and discloses that systeme.io is the only affiliate link.
Field notes
Inputs include current subscribers, monthly growth, billing cadence, whether paid-newsletter features or automations are needed, and—when relevant—the share and price of paid subscribers. The calculator compounds growth across 24 months and selects the cheapest plan fitting each month's list, accounting for platforms that price by contacts rather than subscribers; outputs include plan transitions and totals at 12 and 24 months. It says prices were checked October 9, 2026, and identifies systeme.io as the sole affiliate link.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
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