ConvertKit vs Substack: The Complete 2026 Comparison

About ConvertKit

ConvertKit is an email marketing platform built specifically for creators, bloggers, and online entrepreneurs. It emphasizes simplicity, powerful automations, and a subscriber-first approach with built-in tools for selling digital products and paid newsletters. Founded in 2013, ConvertKit has built a reputation in the email marketing space, earning a 4.4/5 rating on G2 from 200 verified user reviews. The platform offers 12 distinct features and integrates with 10+ third-party tools.

ConvertKit's core strengths include Email broadcasts, Visual automations, Landing pages, Forms and opt-ins, Subscriber tagging. Teams that choose ConvertKit typically value its approach to Email broadcasts and Visual automations, which sets it apart in the crowded email marketing landscape.

About Substack

Substack is a publishing platform that makes it simple to start a paid newsletter or podcast. It takes no upfront fee, instead charging 10% of subscription revenue, making it risk-free for writers and journalists building independent media businesses. Since its founding in 2017, Substack has grown to serve teams worldwide, achieving a 4.3/5 G2 rating from 220 reviews. The platform provides 12 key features and supports 10+ integrations.

Substack's standout capabilities include Newsletter publishing, Paid subscriptions, Podcast hosting, Community features, Custom domains. Teams gravitating toward Substack often prioritize Newsletter publishing and Paid subscriptions, making it a strong fit for organizations that need these specific capabilities.

Pricing Breakdown: ConvertKit vs Substack

Pricing is often the deciding factor when choosing email marketing software. Here is how ConvertKit and Substack stack up across their pricing tiers. Note that both tools may offer annual billing discounts, and prices shown are for monthly billing as of 2026.

Pricing verdict: Both ConvertKit and Substack are competitively priced. Focus on which tool delivers more value for your specific workflow rather than optimizing purely on cost. Consider running a trial of both tools with your team to see which drives better outcomes.

Keep in mind that both tools offer free plans or trials, so you can test each platform before committing. For teams of 10 or fewer, both ConvertKit and Substack provide functional free tiers that let you evaluate the core experience without spending anything.

Feature Comparison: ConvertKit vs Substack

Feature availability can make or break your team's productivity. Below is a detailed comparison of every feature offered by either ConvertKit or Substack. This checklist covers 24 features across both platforms, giving you a comprehensive view of what each tool brings to the table.

ConvertKit offers 12 features while Substack provides 12. The features unique to ConvertKit include Email broadcasts, Visual automations, Landing pages. Substack's unique features include Newsletter publishing, Paid subscriptions, Podcast hosting.

Integrations: ConvertKit vs Substack

In today's software landscape, no tool exists in isolation. The integrations a email marketing tool supports determine how well it fits into your existing tech stack. Here is how ConvertKit and Substack compare in terms of third-party integrations.

Shared integrations (2): Zapier, Stripe. Both tools connect to these popular platforms, so if these are your critical integrations, neither tool has an advantage.

Unique to ConvertKit: WordPress, Shopify, Teachable, Squarespace, WooCommerce, Patreon, Webflow, Crowdcast.

Unique to Substack: Twitter, Spotify, Apple Podcasts, WordPress (import), Ghost (import), Mailchimp (import), RSS, Open API.

Both platforms support Zapier or similar automation tools, which means you can build custom integrations even if a native connection is not available. When evaluating integrations, focus on the ones your team uses daily rather than the total count.

User Ratings and Community Sentiment

Real user reviews provide invaluable insight beyond feature lists. Here is how the community has rated ConvertKit and Substack on G2, one of the most trusted software review platforms.

ConvertKit leads with a 4.4/5 G2 rating compared to Substack's 4.3/5. The 0.1-point gap is meaningful given that both tools have thousands of reviews. ConvertKit's rating is based on 200 reviews, providing strong statistical confidence in the score.

Which Tool Should You Pick? Use-Case Verdicts

The best email marketing tool is not universal -- it depends on your team size, budget, workflow requirements, and existing tech stack. Here are our recommendations for three common scenarios that cover most teams evaluating ConvertKit and Substack.

Final Recommendation: ConvertKit vs Substack

After analyzing pricing, features, ratings, integrations, and real-world use cases, here is our bottom line on the ConvertKit vs Substack decision.

Choose ConvertKit if: You want Email broadcasts, Visual automations, Landing pages, and your team values a focused tool that does fewer things well. ConvertKit's Free (up to 10,000 subscribers) entry point makes it accessible to try, and its 10+ integrations ensure it fits into most tech stacks. With 13 years on the market, ConvertKit is the more established option.

Choose Substack if: You prioritize Newsletter publishing, Paid subscriptions, Podcast hosting, and your team needs a streamlined tool without unnecessary complexity. At 10% of paid subscription revenue per user per month (pro tier), Substack delivers strong value for its price point. Though founded more recently in 2017, Substack has quickly built a strong reputation.

Whichever tool you choose, we recommend starting with the free plan or trial to evaluate how it works with your specific team's workflow. Run a two-week pilot with a small project before making a company-wide commitment. The right email marketing tool is the one your team will actually use consistently -- and that can only be determined through hands-on experience.

Switching Between ConvertKit and Substack

If you are currently using one tool and considering switching to the other, here are some tips to make the migration smoother. Most email marketing tools support data export in CSV or JSON formats, and both ConvertKit and Substack offer import functionality.

Start by exporting your current projects, tasks, and custom fields. Map your existing workflow to the new tool's structure before migrating data. Plan for a 2-4 week transition period where both tools run in parallel, and designate team champions to help with adoption. Consider using a third-party migration service if you have complex data structures or a large number of projects to transfer.

Frequently Asked Questions

How We Compared ConvertKit and Substack

This comparison is based on publicly available data including G2 user ratings and review counts, official pricing pages, published feature lists, and integration directories. Ratings and pricing data are approximate and were last verified in 2026. We encourage readers to check each tool's official website for the most current information, as pricing and features may change.

Our analysis covers pricing (free, pro, and enterprise tiers), features (24 features compared), integrations (20 total across both tools), user ratings (combined 420 G2 reviews), and use-case suitability (small teams, mid-size companies, and enterprises). We aim to provide objective, data-driven comparisons to help you make informed decisions.