Mailchimp vs Substack: The Complete 2026 Comparison
Choosing between Mailchimp and Substack for email marketing? This in-depth comparison breaks down pricing, features, user ratings, integrations, and real-world use cases to help you make the right decision. Both tools serve the email marketing category, but they take distinctly different approaches to helping teams get work done.
Founded in 2001, Mailchimp is the most widely used email marketing platform, now owned by Intuit. Meanwhile, Substack was founded in 2017. Substack is a publishing platform that makes it simple to start a paid newsletter or podcast. Let us dive into how they stack up across every dimension that matters.
Quick Verdict
Mailchimp edges ahead with a G2 rating of 4.4/5 (based on 5,200 reviews) versus Substack's 4.3/5 (220 reviews). However, Substack holds its own with 12 key features and competitive pricing starting at Free (unlimited subscribers).
At-a-Glance: Mailchimp vs Substack
Before we dive into the details, here is a high-level overview of how Mailchimp and Substack compare across the key criteria most teams care about when evaluating email marketing software.
| Criteria | Mailchimp | Substack |
|---|---|---|
| G2 Rating | 4.4/5 (5,200 reviews) | 4.3/5 (220 reviews) |
| Free Plan | Free (500 contacts) | Free (unlimited subscribers) |
| Pro Pricing | $13/month (Essentials) | 10% of paid subscription revenue |
| Enterprise | $350/month (Premium) | 10% of paid subscription revenue |
| Founded | 2001 | 2017 |
| Key Features | 12 features | 12 features |
| Integrations | 10+ integrations | 10+ integrations |
| Category | Email Marketing | Email Marketing |
| Website | mailchimp.com | substack.com |
About Mailchimp
Mailchimp is the most widely used email marketing platform, now owned by Intuit. It offers email campaigns, automation, landing pages, and audience management with a strong free tier that makes it accessible to beginners and small businesses. Founded in 2001, Mailchimp has built a reputation in the email marketing space, earning a 4.4/5 rating on G2 from 5,200 verified user reviews. The platform offers 12 distinct features and integrates with 10+ third-party tools.
Mailchimp's core strengths include Email campaigns, Audience segmentation, Marketing automation, Landing pages, A/B testing. Teams that choose Mailchimp typically value its approach to Email campaigns and Audience segmentation, 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: Mailchimp vs Substack
Pricing is often the deciding factor when choosing email marketing software. Here is how Mailchimp 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.
| Plan | Mailchimp | Substack |
|---|---|---|
| Starter / Free | Free (500 contacts) | Free (unlimited subscribers) |
| Pro / Business | $13/month (Essentials) | 10% of paid subscription revenue |
| Enterprise | $350/month (Premium) | 10% of paid subscription revenue |
Pricing verdict: Both Mailchimp 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 Mailchimp and Substack provide functional free tiers that let you evaluate the core experience without spending anything.
Feature Comparison: Mailchimp vs Substack
Feature availability can make or break your team's productivity. Below is a detailed comparison of every feature offered by either Mailchimp or Substack. This checklist covers 24 features across both platforms, giving you a comprehensive view of what each tool brings to the table.
| Feature | Mailchimp | Substack |
|---|---|---|
| A/B testing | Yes | No |
| Audience segmentation | Yes | No |
| Community features | No | Yes |
| Content optimizer | Yes | No |
| Creative assistant (AI) | Yes | No |
| Custom domains | No | Yes |
| Customer journeys | Yes | No |
| Email campaigns | Yes | No |
| Group threads | No | Yes |
| Landing pages | Yes | No |
| Marketing automation | Yes | No |
| Mobile app | No | Yes |
| Newsletter publishing | No | Yes |
| Paid subscriptions | No | Yes |
| Podcast hosting | No | Yes |
| RSS feeds | No | Yes |
| Recommendations | No | Yes |
| Reporting and analytics | Yes | No |
| Section support | No | Yes |
| Social media posting | Yes | No |
| Subscriber analytics | No | Yes |
| Substack Notes | No | Yes |
| Surveys | Yes | No |
| Transactional emails | Yes | No |
Mailchimp offers 12 features while Substack provides 12. The features unique to Mailchimp include Email campaigns, Audience segmentation, Marketing automation. Substack's unique features include Newsletter publishing, Paid subscriptions, Podcast hosting.
Integrations: Mailchimp 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 Mailchimp 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 Mailchimp: Shopify, WooCommerce, WordPress, Salesforce, Canva, Google Analytics, Facebook, Instagram.
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 Mailchimp and Substack on G2, one of the most trusted software review platforms.
| Metric | Mailchimp | Substack |
|---|---|---|
| G2 Rating | 4.4/5 | 4.3/5 |
| Total Reviews | 5,200 | 220 |
| Years on Market | 25 years (since 2001) | 9 years (since 2017) |
Mailchimp 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. Mailchimp's rating is based on 5,200 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 Mailchimp and Substack.
Scenario 1: Small Teams and Startups (Under 20 People)
For small teams on a budget, both tools offer competitive free tiers. Substack may be easier to adopt quickly due to its more focused feature set, reducing onboarding time. However, Mailchimp offers more room to grow as your team scales, with 12 features compared to 12.
Our pick: Substack -- Faster setup and lower complexity for small teams.
Scenario 2: Mid-Size Companies (20-200 People)
Mid-size teams need robust email marketing with good reporting and integrations. Mailchimp offers integrations with Shopify, WooCommerce, WordPress, Salesforce, while Substack connects to Stripe, Twitter, Spotify, Apple Podcasts. For cross-functional teams, Substack provides stronger customization options. Both tools handle enterprise-grade workloads, but the Mailchimp's higher G2 rating (4.4/5 from 5,200 reviews) suggests better overall satisfaction at scale.
Our pick: Mailchimp -- Higher G2 rating (4.4/5) and stronger user satisfaction.
Scenario 3: Enterprise and Software Development Teams
At the enterprise level, integration depth, security, and workflow customization matter most. Mailchimp's enterprise plan ($350/month (Premium)) varies compared to Substack (10% of paid subscription revenue). For development teams specifically, look at Git integrations: .
Our pick: Mailchimp -- More extensive user base providing better community support and proven reliability.
Final Recommendation: Mailchimp vs Substack
After analyzing pricing, features, ratings, integrations, and real-world use cases, here is our bottom line on the Mailchimp vs Substack decision.
Choose Mailchimp if: You want Email campaigns, Audience segmentation, Marketing automation, and your team values a focused tool that does fewer things well. Mailchimp's Free (500 contacts) entry point makes it accessible to try, and its 10+ integrations ensure it fits into most tech stacks. With 25 years on the market, Mailchimp 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 Mailchimp 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 Mailchimp 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
Is Mailchimp better than Substack?
Mailchimp has a higher G2 rating (4.4/5 vs 4.3/5 from 5,200 reviews), but the best tool depends on your needs. Mailchimp stands out for Email campaigns, Audience segmentation, Marketing automation, while Substack excels at Newsletter publishing, Paid subscriptions, Podcast hosting.
How much does Mailchimp cost compared to Substack?
Mailchimp's pro plan costs $13/month (Essentials) while Substack's pro plan costs 10% of paid subscription revenue. Mailchimp starts at Free (500 contacts) and Substack starts at Free (unlimited subscribers). Enterprise pricing is $350/month (Premium) for Mailchimp and 10% of paid subscription revenue for Substack.
Can Mailchimp and Substack integrate with each other?
While direct integration varies, both Mailchimp and Substack connect to common platforms including Zapier, Stripe. Third-party tools like Zapier can bridge any gaps between the two.
Which tool is easier to learn, Mailchimp or Substack?
Mailchimp (founded 2001) and Substack (founded 2017) take different approaches to usability. Mailchimp generally has a simpler learning curve with fewer features to master, while Substack offers more features but may take longer to fully adopt.
What are the main differences between Mailchimp and Substack?
The key differences are: (1) Pricing -- Mailchimp starts at Free (500 contacts) vs Substack at Free (unlimited subscribers). (2) G2 ratings -- Mailchimp has 4.4/5 vs Substack at 4.3/5. (3) Features -- Mailchimp focuses on Email campaigns, Audience segmentation, Marketing automation, while Substack emphasizes Newsletter publishing, Paid subscriptions, Podcast hosting. (4) Founded -- Mailchimp (2001) vs Substack (2017).
How We Compared Mailchimp 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 5,420 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.
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