Blog
Long-form pieces
Email-platform migrations, deliverability findings, popup A/B notes from real client accounts.
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2026-05-01
Substack to Kit Paid Newsletter: 12.9% vs 3.5% Fee Math Done Honestly
At $5K MRR, Substack costs $5,160/yr more than Kit after fees. Migration retains 70%+ of paid subs if the re-subscribe email is written correctly. 14-day timeline plus the case for staying.
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2026-04-30
Kit (ConvertKit) vs Klaviyo — first 90 days of a 5,000-list migration
Klaviyo $100/mo, ghost commerce features, no Shopify. Kit $29/mo, faster sends, deliverability held. The flow builder still favors Klaviyo, but barely.