Customer.io alternatives (2026)
These are the email marketing brands AI engines name when buyers ask. Ranked by how often ChatGPT, Claude, Gemini, Perplexity and Copilot actually cite them over the last 90 days — not by reviews or paid placement. For reference, Customer.io is named in 0.5% of the 386 answers we checked.
Named instead of Customer.io
On the questions Customer.io loses, these are the sites engines cite in its place.
- mailchimp.com ×140
- activecampaign.com ×85
- klaviyo.com ×51
- hubspot.com ×25
- substack.com ×19
- brevo.com ×18
Top Customer.io alternatives by AI citation share
Starting price: $79
Starting price: $3/month
Up to 2,000 contacts · 6,000 emails/month · 5 users · Templates, Drag & drop, HTML import
Starting price: $15/mo
Active Intelligence · Marketing automation · Email Marketing · Standard segmentation
Starting price: $0/mo
Email editor · Contact management · Sign-up forms · Reporting
- #5Braze
Personalized cross-channel messaging · Advanced experimentation capabilities · Generative AI and intelligence suite · Two-Factor Authentication (2FA) features
- #6Brevo
Starting price: $8.08/month
5,000 emails/month · Drag & Drop email editor · Email templates · AI content generator
Starting price: $1170/month
5x subscriber emails/month · Custom coded templates · Advanced email features · Unlimited email sends
Starting price: $12/month
Email marketing tools · Social media scheduling · Automated marketing tools · Live support options
Starting price: $0/mo
1 basic Visual Automation · Unlimited landing pages & forms · Unlimited email broadcasts · Audience tagging & segmentation
- #10Drip
Starting price: $39/month
Unlimited email sends · Dynamic segments · Onsite campaigns · Up to 50 workflows
- #11GetResponse
Starting price: $19/mo
Unlimited monthly email sends · AI-powered content generators · Landing page builder · Signup forms and popups
- #12Gmass
Starting price: $20/month
Works inside Gmail · Send unlimited emails! · Unlimited contacts · Unlimited campaigns
How this list is built
We put the buyer questions people actually ask in email marketing to five AI engines on a recurring schedule and record which brands get named. The ranking above is the share of those answers naming each brand over the last 90 days. No paid placement, no review scores.