ConvertKit vs Substack
The ultimate side-by-side head-to-head analysis for 2026.
Short answer
- Price: not directly comparable — ConvertKit is from $9/user/mo, Substack is usage-based pricing.
- How to start: ConvertKit is from $9/user/mo, Substack is usage-based pricing.
These lines are generated from the pricing we track, not from a paid placement. We do not publish a quality score, because we do not have one we can stand behind. They cannot tell you which tool fits your workflow — the sections below are there for that. How we score tools.
ConvertKit
Substack
Category
Marketing
Marketing
Base Price
$9/user/mo
Usage-based
Public API
Yes
No
Mobile app
No
Yes
Open source / self-hostable
No
No
SSO (SAML)
No
No
Choose ConvertKit if:
Blogger, YouTubers, and Professional Creators.
Choose Substack if:
Writers, Journalists, and Thought Leaders.
ConvertKit: pros & cons
- Simple Automations: The most intuitive visual funnel builder in the market.
- Creator Network: Benefit from an internal network of other creators who can recommend you.
- High Deliverability: Known for making sure your emails actually land in the inbox.
- Commerce Ready: Sell digital products and subscriptions directly within your emails.
- Basic Editor: Its email designer is very minimalist and not meant for highly visual layouts.
- Pricing: Can be expensive compared to MailerLite or Beehiiv as your list grows.
- Reporting: Analytical dashboards are less detailed than some enterprise competitors.
Substack: pros & cons
- Zero Upfront Cost: No fixed fees regardless of subscriber count (takes a 10% cut).
- Data Ownership: You own your subscriber list and can move it elsewhere anytime.
- Organic Growth: Its internal recommendation network helps you find new readers.
- Simplicity: Focus strictly on writing without worrying about design or tech details.
- Personalization: Your site's design is nearly identical to thousands of other Substack pages.
- Commission: High-earning writers may find the 10% cut more expensive than Ghost.
- SEO: Using your own custom domain requires a one-time fee to set up.
Our verdict on ConvertKit
The best email platform for those looking for powerful automation without the corporate headache.
Our verdict on Substack
The world's easiest and most popular way to build an audience and earn from writing.