ConvertKit vs Substack
Side-by-side comparison of features, pricing, ratings, and alternatives.
ConvertKit (now Kit) is an email marketing platform designed for creators — writers, YouTubers, podcasters — emphasizing simple automations, tagging, and monetization tools like paid newsletters. It favors plain-text, relationship-driven emails.
Substack is a publishing platform that lets writers launch paid or free email newsletters with built-in subscription payments, podcast hosting, and a discovery network across other Substack publications. It provides a simple way for writers to connect with their audience and monetize their content.
Free up to a limited subscriber count; paid plans scale up.
- Great for creators
- Strong deliverability
- Simple automations
- Monetization features
- Easy to use and intuitive interface
- Flexible pricing options for monetizing content
- Built-in discovery network for connecting with audience
- Integration with other tools and services through APIs and webhooks
- Fewer design-heavy templates
- Costs scale with subscribers
- Less suited to big e-commerce
- Limited customization options for publications
- Fees for subscription payments
- Limited support for large-scale publications
What reviewers say
ConvertKit Reviews
4.0 (2)Recommend ConvertKit
ConvertKit has been part of our stack. Monetization features. Minor gripe: costs scale with subscribers. Would recommend.
Recommend ConvertKit
Been using ConvertKit for a while. Simple automations. Minor gripe: less suited to big e-commerce. Would recommend.
Substack Reviews
No reviews yet.
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The Verdict
AI-generated from listing dataConvertKit is creator‑focused with strong email deliverability and monetization tools, while Substack adds built‑in paid subscriptions, podcast hosting, and a discovery network.
Key differences
- •ConvertKit emphasizes email automation, tagging, and landing pages; Substack emphasizes paid newsletters, podcast distribution, and a discovery network.
- •ConvertKit’s pricing scales with subscriber count; Substack offers a freemium model with transaction fees for paid subscriptions.
- •ConvertKit has fewer design‑heavy templates; Substack has limited customization overall but focuses on simplicity.
- •Substack includes built‑in podcast hosting and Stripe integration; ConvertKit does not list podcast features.
- •Support options are only listed for Substack (email, live chat); ConvertKit’s support details are not specified.
Pricing & value
Substack is freemium with only transaction fees, whereas ConvertKit charges subscription fees that increase with subscriber count.
Ease of use / learning curve
Substack’s description highlights a simple, intuitive interface; ConvertKit offers more automation features that may require learning.
Features & depth
ConvertKit provides creator‑focused automations, tagging, landing pages, and commerce tools; Substack focuses on newsletters, podcasts, and discovery.
Integrations & ecosystem
Substack lists specific integrations (Stripe, Mailchimp, Google Analytics) and APIs; ConvertKit only notes API availability without examples.
Collaboration
Neither product description mentions collaboration features; no data to differentiate.
Scalability
ConvertKit is designed for creators and solo businesses but notes costs scale with subscribers; Substack notes limited support for large‑scale publications.
Support
Substack specifies email and live‑chat support; ConvertKit’s support options are not provided.
Choose ConvertKit if…
Creators who need advanced email automation, tagging, and built‑in commerce tools, and are okay with subscriber‑based pricing.
Choose Substack if…
Writers or podcasters wanting an all‑in‑one platform for free/paid newsletters, podcast distribution, and built‑in discovery, with freemium pricing.
Common questions
Which platform is cheaper for a small audience?
Substack offers a freemium plan with only transaction fees, making it cheaper for small lists; ConvertKit charges subscription fees.
Can I host a podcast on both platforms?
Only Substack lists podcast hosting as a feature; ConvertKit does not mention podcast capabilities.
Do both platforms support API integrations?
Yes, both provide APIs; Substack also lists specific integrations (Stripe, Mailchimp, Google Analytics).