Email marketing platforms · #12 of 23 · ↑ Substack · ↓ Loops
Customer.io
Customer.io ranks #12 of 23 in email marketing platforms in the week of 28 September 2026, with a visibility score of 13 across ChatGPT, Claude, Gemini and Perplexity. It was named in 20% of the answers we sampled.
sampled: 3 of 4 assistants this week
Customer.io lands in 12 of 59 answers across AI assistants, with an overall score of 13 out of 100 — Claude rates it highest at 19, Perplexity at 14, and ChatGPT at 10. It shows up most reliably for behaviour-based questions: it's named in all 3 answers for segmenting users by behaviour and all 3 for automated onboarding and drip emails, plus 2 of 3 for SaaS startup recommendations. It fades elsewhere, going unmentioned for free tools, solo creators, small businesses, free tiers under 1,000 subscribers, and duplicate-subscriber pricing. In short, AI assistants peg Customer.io as a behaviour-driven automation tool, not a budget or beginner pick.
this is mine claim it, free, forever. We also check whether ChatGPT and Claude can read customer.io.
Who's talking about you
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 10 | 11% of answers | #1.5 |
| Claude | 19 | 35% of answers | #6.9 |
| Gemini | not sampled this week | ||
| Perplexity | 14 | 15% of answers | #1.7 |
Questions you win
| question | named in | best spot |
|---|---|---|
| What's the best tool for automated onboarding and drip emails? | 3 of 3 | #1 |
| What's the best email platform that segments users by behaviour? | 3 of 3 | #1 |
| What's the best email platform for a SaaS startup? | 2 of 3 | #1 |
| Which email tool has the best deliverability? | 1 of 3 | #7 |
| What's the best alternative to Mailchimp? | 1 of 3 | #8 |
| What's the best email marketing software in 2026? | 1 of 3 | #9 |
| What are the best email marketing platforms? | 1 of 3 | #13 |
Questions you lose
| question | who got named instead |
|---|---|
| What's the best email marketing tool for a small business? | Brevo, Constant Contact, Kit |
| What are the best free email marketing tools? | Brevo, Sender, MailerLite |
| What's the best newsletter platform? | beehiiv, Substack, Kit |
| Which email marketing platform is best value for money? | Brevo, MailerLite, Kit |
| Which email platform is best for a solo creator? | beehiiv, Kit, Substack |
| What's the best email tool for selling a paid newsletter? | beehiiv, Kit, Substack |
| What's the best email marketing platform for an ecommerce store? | Omnisend, Klaviyo |
| 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 tool for a newsletter with sponsors and ads? | beehiiv, Kit, MailerLite |
| 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“| Customer.io | ⭐⭐⭐⭐⭐ | SaaS, apps, product-led businesses |”
- Claude“For SaaS / product-led: Customer.io”
- Perplexity“Customer.io: Best for SaaS and apps that need campaigns triggered by in-product events.”
Closest rivals
- Customer.io vs Substack14
- Customer.io vs Ghost15
- Customer.io vs HubSpot19
- Customer.io vs Loops7
- Customer.io vs Omnisend19
All Customer.io alternatives · Full Email marketing platforms leaderboard · Sources