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Substack vs ConvertKit

A detailed comparison to help you choose between Substack and ConvertKit.

Last reviewed:
S
Substack

Free newsletter platform with built-in paid subscriptions

C
ConvertKit

Email marketing platform built for creators and online businesses.

FeatureSubstackConvertKit
Pricing ModelFreeFreemium
Free TierYesYes
Monthly Cost (Solo)$0$0
Target Audiencecreatorssolopreneurs, creators
VerifiedNoYes
Solo-FriendlyYesYes
Open SourceNoNo
Editorial Rating4/54.3/5
CategoriesEmail MarketingEmail Marketing
Key FeaturesFree newsletter publishing, Paid subscription support, Podcast hosting, Community features (Notes, Chat), Custom domainsVisual automation builder, Landing page builder, Subscriber tagging, Digital product sales, Paid newsletters
Free Tier Quality
excellent
good

Pricing Breakdown

Substack

Free to use. Substack takes 10% of paid subscription revenue. Stripe processing: 2.9% + $0.30. Custom domains: free.

ConvertKit

Newsletter (Free): up to 10,000 subscribers, unlimited emails. Creator: $29/month (1,000 subs, automations). Creator Pro: $59/month (subscriber scoring). Prices scale with subscriber count.

Integration Overlap

Shared Integrations (1)

Stripe

Only in Substack (4)

Twitter/XCustom domainsRSS feedsSubstack app

Only in ConvertKit (9)

WordPressShopifyTeachableZapierWooCommerceSquarespaceWebflowPatreonGumroad

Use Case Fit

Substack

  • * Newsletter business creation
  • * Paid content and subscription publishing
  • * Audience building for writers
  • * Podcast distribution
  • * Community building for creators

ConvertKit

  • * Creator newsletter management
  • * Email automation sequences
  • * Digital product and course sales
  • * Landing page creation
  • * Audience growth and segmentation

Substack

Pros

  • + Completely free to start (Substack takes 10% of paid subs)
  • + Built-in audience network and discoverability
  • + No technical setup required
  • + Mobile reader app drives engagement

Cons

  • - 10% revenue cut on paid subscriptions
  • - Very limited design customization
  • - No advanced email automation
  • - You don't fully own your audience data

ConvertKit

Pros

  • + Purpose-built for creators
  • + Visual automation builder is best-in-class
  • + Free tier for up to 1,000 subscribers
  • + Easy to learn
  • + Excellent deliverability

Cons

  • - Limited email template designs
  • - No A/B testing on free plan
  • - Reporting is basic compared to Mailchimp
  • - Higher price per subscriber on paid tiers

Editorial Verdict

For solo founders on a budget, Substack wins with solo-friendly pricing and a excellent free tier. For the highest-rated experience, ConvertKit edges ahead with a 4.3/5 editorial rating.

Sarah Chen

Editor-in-Chief