Substack vs Kit: Head-to-Head Comparison

Quick Verdict

Substack is the better pick for writers wanting discovery and simple paid subscriptions. Kit is the better pick for creators selling products via email.

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At a Glance

Feature	Substack	Kit
Best For	Writers wanting discovery and simple paid subscriptions	Creators selling products via email
Pricing	Free; 10% fee on paid subscriptions	Free tier with paid plans
Free to Start	Yes	Yes
License	Proprietary	Proprietary
Deployment	Managed cloud	Managed cloud
Link	Visit Substack	Visit Kit

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Detailed Breakdown

Substack

Newsletter platform with a built-in network

Pros:

• Free to start
• Built-in discovery network
• Very simple

Cons:

• 10% fee on paid subscriptions
• Limited customization

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Kit

Email marketing for creators (formerly ConvertKit)

Pros:

• Visual automations
• Built-in commerce
• Creator recommendation network

Cons:

• Pricing scales by subscriber count
• Limited email design options

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Key Differences

• Positioning: Substack — newsletter platform with a built-in network. Kit — email marketing for creators (formerly ConvertKit).
• Both share the same licensing model (proprietary), so the decision comes down to features and workflow fit.
• Pricing: Substack — Free; 10% fee on paid subscriptions. Kit — free tier with paid plans.
• Signature strength: Substack — free to start. Kit — Visual automations.

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Frequently Asked Questions

Is Substack better than Kit?

It depends on your requirements. Substack is a strong fit for writers wanting discovery and simple paid subscriptions, while Kit suits creators selling products via email.

Is Substack free to use?

Yes, you can start with Substack for free. Pricing model: Free; 10% fee on paid subscriptions.

Is Kit free to use?

Yes, you can start with Kit for free. Pricing model: Free tier with paid plans.

Can I self-host Substack or Kit?

Substack is offered as a managed service: managed cloud. Kit is offered as a managed service: managed cloud.

What are the main drawbacks of Substack and Kit?

Substack: 10% fee on paid subscriptions; limited customization. Kit: pricing scales by subscriber count; limited email design options.