The most visible email marketing tools, October 2026

October 2026 · 12 questions asked in English, worldwide · ChatGPT, Google AI Overviews, Gemini and Google AI Mode · 96 answers read

Most cited source

reddit.com

32citations

From Google AI Mode, Gemini, Google AI Overviews and ChatGPT

Where engines disagree most

Mailchimp

1/4engines put it in their top three

Top three on ChatGPT, not on Google AI Mode, Gemini and Google AI Overviews

Brands

Rank Brand Heralded Score Mentioned Recommended By engine Mentioned by Change
– Flodesk US Too few answers 1% 1% None First reading
– Maileon DE Too few answers 1% 1% None First reading
– MAILplus Too few answers 1% 0% None First reading
– Moosend GB Too few answers 2% 0% First reading
– Omeda US Too few answers 1% 1% None First reading
– Salesforce Marketing Cloud US Too few answers 2% 2% First reading
– Twilio SendGrid US Too few answers 1% 1% First reading
– Zoho Campaigns IN Too few answers 1% 0% First reading

“=” marks brands whose score ranges overlap, so the test cannot separate them. Every brand named in at least three answers is ranked. By engine has one dot per engine (ChatGPT, Google AI Overviews, Gemini and Google AI Mode), darker the more often it names the brand.

Most cited sources

Rank Source Type Cited in Engines Pages cited Brands its pages mention
1 reddit.com Community 25.0% 4 of 4 15 24
2Withheld. Run a full Snapshot to see it.
3Withheld. Run a full Snapshot to see it.
4Withheld. Run a full Snapshot to see it.
5 ventureharbour.com Consultancy 16.7% 3 of 4 4 15
6Withheld. Run a full Snapshot to see it.
7 google.com Vendor site 8.3% 2 of 4 16 Not read
8 hubspot.com Brand site 9.4% 3 of 4 13 13
9Withheld. Run a full Snapshot to see it.
10Withheld. Run a full Snapshot to see it.

The questions, and who wins each

QuestionLanguageWins it
email marketing software with the best support English ActiveCampaign and Constant Contact, tied
which email marketing software do experts recommend English ActiveCampaign, Kit and Klaviyo, tied

Each engine's top three

Method

Each month Heralded asks every engine the same buyer questions, twice each, and reads every answer. An answer counts 0 for a brand it leaves out, 50 for a brand it names and 100 for a brand it recommends, and the Heralded Score is built from those. A brand named in at least three answers gets a score and a place.

How the leaderboards are measured