These vendor, review, and case-study sources are not founder-interview evidence and do not establish a universal winner.
Biased but useful case-study · 2026-06-23
Course delivered to 12,000 students.
MailerLite says 100DaysOfNoCode used email automations to deliver a course.
Vendor-authored but specific and audience-relevant.
Source: MailerLite / Max Haining Directional case-study · 2026-06-23
Sold out online course in 6 hours; example campaign had 86.26% open rate and 7% CTR.
Buildcamp used MailerLite email/segmentation for a course launch; page reports high engagement on active subscriber segment.
Vendor-authored but has concrete launch and engagement numbers.
Source: MailerLite / Buildcamp Directional case-study · 2026-06-23
Early emails had >70% open rates; welcome-email response rate around 25% in first weeks.
Blogging for Devs used an email course/newsletter funnel to attract engaged subscribers.
Vendor-authored but very relevant creator/founder context with concrete engagement metrics.
Source: Kit / Monica Lent Directional case-study · 2024-09-09
Maintains +50% open rate with 27,000+ subscribers.
RadReads uses Kit automations and dedicated content to serve its audience.
Vendor-authored but strongly relevant to creator/newsletter use case.
Source: Marijana Kay, Kit / Khe Hy Directional case-study · 2026-06-23
Email list grew 50% to 320,000+ subscribers; around 40% opens and 3% clicks remained steady.
Daily Stoic made email the foundation of its marketing strategy on Kit.
Vendor-authored but quantified and strong for creator-newsletter fit; larger than solo-founder v1 audience.
Source: Kit / Ryan Holiday