Mailchimp vs Substack:Which is more popular by branded search?
In August 2026, Substack had more branded searches than Mailchimp among newsletter platforms worldwide. Substack was estimated to have 2.5M branded searches compared to Mailchimp’s 1.1M, and held a 64.1% Share of Search versus Mailchimp’s 26.9%. Worldwide · English terms: these are worldwide searches for English-language branded terms.
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Which is more popular in search, Mailchimp or Substack?
Compare platforms for publishing, sending, and monetising email newsletters, measured through worldwide English-language branded search demand. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Substack, Mailchimp. The figures are in the table below the chart.
View monthly share of search table
| Month | Substack | Mailchimp | MailerLite | beehiiv | Kit | Ghost | Buttondown |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 41.3% | 46.1% | 7.6% | 2.1% | 2.2% | 0.75% | 0.01% |
| Nov 2025 | 41.5% | 46.2% | 7.6% | 2.1% | 1.9% | 0.68% | 0.01% |
| Dec 2025 | 51.2% | 38.2% | 6.3% | 1.7% | 1.9% | 0.68% | 0.01% |
| Jan 2026 | 51.1% | 38.3% | 6.3% | 2.1% | 1.6% | 0.6% | 0.02% |
| Feb 2026 | 50.2% | 37.8% | 7.4% | 2.5% | 1.5% | 0.73% | 0.02% |
| Mar 2026 | 50.4% | 38.7% | 6.4% | 2.5% | 1.3% | 0.66% | 0.02% |
| Apr 2026 | 50.6% | 38.5% | 6.3% | 2.5% | 1.3% | 0.67% | 0.02% |
| May 2026 | 54.5% | 34.2% | 6.9% | 2.3% | 1.3% | 0.73% | 0.02% |
| Jun 2026 | 54.9% | 34% | 6.8% | 2.2% | 1.4% | 0.59% | 0.02% |
| Jul 2026 | 57.7% | 31% | 7.1% | 2.3% | 1.2% | 0.59% | 0.02% |
| Aug 2026 | 64.1% | 26.9% | 5.4% | 1.8% | 1.2% | 0.54% | 0.02% |
| Sep 2026 | — | — | — | — | — | — | — |
How has the Mailchimp and Substack comparison changed over the last 12 months?
3 findings
- The lead changed hands once in the 11 months ending August 2026: Substack took it in December 2025.
- Across the 11 months ending August 2026, Mailchimp’s estimated Share of Search among newsletter platforms worldwide moved from 46.1% to 26.9%, and its estimated monthly branded searches moved from 1.6M to 1.1M.
- Across the 11 months ending August 2026, Substack’s estimated Share of Search among newsletter platforms worldwide moved from 41.3% to 64.1%, and its estimated monthly branded searches moved from 1.4M to 2.5M.
How did search popularity change for newsletter platforms worldwide in August 2026?
2 changes
In August 2026, Substack gained estimated Share of Search among newsletter platforms worldwide, from 57.7% to 64.1%.
In August 2026, Mailchimp lost estimated Share of Search among newsletter platforms worldwide, from 31% to 26.9%.
How each brand is measured
Brandwave collects information about searches that people make online using Mailchimp’s and Substack’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Mailchimp
21 branded search terms
- email marketing mailchimp
- free mailchimp
- intuit mailchimp
- Mailchimp
- mailchimp app
- mailchimp com
- mailchimp email
- mailchimp email marketing
- mailchimp email templates
- mailchimp free
- mailchimp free plan
- mailchimp marketing
- mailchimp newsletter
- mailchimp newsletter template
- mailchimp price
- mailchimp pricing
- mailchimp template
- mailchimp templates
- mailchimp website
- mailchimp.com
- what is mailchimp
Substack
18 branded search terms
- Substack
- substack app
- substack articles
- substack com
- substack live
- substack newsletter
- substack newsletter platform
- substack newsletters
- substack notes
- substack podcast
- substack subscribe
- substack subscription
- substack web
- substack website
- substack websites
- substack.com
- what is a substack
- what is substack
Put your own brand in this comparison
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