Email marketing platforms · #11 of 23 · ↑ Ghost · ↓ Customer.io
Substack
Substack ranks #11 of 23 in email marketing platforms in the week of 28 September 2026, with a visibility score of 14 across ChatGPT, Claude, Gemini and Perplexity. It was named in 19% of the answers we sampled.
sampled: 3 of 4 assistants this week
Substack shows up in 11 of 59 answers across the email marketing category, landing an overall score of 14 out of 100. Claude rates it highest at 26, with ChatGPT at 9 and Perplexity at 8. Its strongest showing is on "What's the best newsletter platform?", where it's named in all 3 answers, plus decent mentions for paid newsletters and sponsor-supported setups (2 of 3 each). It's never brought up for questions about free tiers under 1,000 subscribers, small business tools, duplicate subscriber charges, developer APIs, or deliverability.
this is mine claim it, free, forever. We also check whether ChatGPT and Claude can read substack.com.
Who's talking about you
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 9 | 11% of answers | #2.5 |
| Claude | 26 | 35% of answers | #3.4 |
| Gemini | not sampled this week | ||
| Perplexity | 8 | 10% of answers | #3.0 |
Questions you win
| question | named in | best spot |
|---|---|---|
| What's the best newsletter platform? | 3 of 3 | #1 |
| What's the best email tool for selling a paid newsletter? | 2 of 3 | #1 |
| What's the best email tool for a newsletter with sponsors and ads? | 2 of 3 | #4 |
| Which email platform is best for a solo creator? | 1 of 2 | #1 |
| What are the best email marketing platforms? | 1 of 3 | #5 |
| What's the best email marketing software in 2026? | 1 of 3 | #5 |
| What are the best free email marketing tools? | 1 of 3 | #7 |
Questions you lose
| question | who got named instead |
|---|---|
| What's the best email marketing tool for a small business? | Brevo, Constant Contact, Kit |
| Which email marketing platform is best value for money? | Brevo, MailerLite, Kit |
| What's the best alternative to Mailchimp? | Brevo, MailerLite, Kit |
| Which email tool has the best deliverability? | ActiveCampaign, Brevo |
| What's the best email platform for a SaaS startup? | Customer.io, Brevo |
| What's the best email marketing platform for an ecommerce store? | Omnisend, Klaviyo |
| What's the best tool for automated onboarding and drip emails? | Customer.io, Braze, Iterable |
| What's the best email platform that segments users by behaviour? | Klaviyo, Customer.io, ActiveCampaign |
| What's the best email tool with a good free tier for under 1,000 subscribers? | MailerLite, Kit, beehiiv |
| What's the best email platform for developers with a clean API? | nobody in particular |
| What's the best open-source or self-hosted newsletter tool? | Listmonk, Ghost, Keila |
| What's the best email platform that doesn't charge for duplicate subscribers? | MailerLite, Sender, beehiiv |
| What's the best email marketing platform that integrates with my CRM? | HubSpot, Klaviyo, ActiveCampaign |
Assistants cited 10 pages for questions in this category that name your rivals and not you. Claim to see them. See all sources for Email marketing platforms.
In their words
- ChatGPT“| Substack | Yes | 10% of subscription revenue | Simplest possible publishing/community experience |”
- Claude“Substack — I'd avoid it for an ad-supported model.”
- Perplexity“Substack — best for paid subscriptions: Simple publishing and subscription payments, but less flexible if the main business model is selling ad placements directly.”
Closest rivals
- Substack vs Customer.io13
- Substack vs Ghost15
- Substack vs HubSpot19
- Substack vs Omnisend19
- Substack vs Loops7
All Substack alternatives · Full Email marketing platforms leaderboard · Sources