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GTM AI Index
Index › Products › Email on Acid › Alternatives · October 2026 Edition
One category · what the models named instead

Alternatives to Email on Acid, as AI models named them

In the October 2026 Edition, 223 of the 252 answers collected in the one category where Email on Acid holds a standing named it neither as a first choice nor as an alternative. These are the products those answers put first, category by category and buyer by buyer. The output is the models' output.

Named instead, most often
First choices in the 223 answers that did not name Email on Acid, every category and segment above added together; a product can be counted in several. Each category below keeps its own denominator.

Email deliverability and testing tools

Marketing. Six framings, fourteen models, one answer each per buyer segment; an answer counts here when Email on Acid is not its first choice or an alternative in it.
Small businessEmail on Acid is #14 of 15 here at 0% of first choices, 14 labels.

Seventy-five of the eighty-four answers did not name Email on Acid; it was the first choice in three. The first choices in those seventy-five answers, twenty-nine products in all, the eight most named:

GlockApps20 of 75
MXToolbox6 of 75
Instantly3 of 75
Litmus3 of 75
MailReach3 of 75
21 more in the record.The full small business standing →
Mid-marketEmail on Acid is #10 of 12 here at 0% of first choices, 13 labels.

Seventy-four of the eighty-four answers did not name Email on Acid; it was the first choice in zero. The first choices in those seventy-four answers, twenty-four products in all, the eight most named:

16 more in the record.The full mid-market standing →
EnterpriseEmail on Acid is #12 of 14 here at 0% of first choices, 13 labels.

Seventy-four of the eighty-four answers did not name Email on Acid; it was the first choice in one. The first choices in those seventy-four answers, fifteen products in all, the eight most named:

Litmus4 of 74
Everest3 of 74
Instantly3 of 74
Mailgun3 of 74
SendGrid3 of 74
GlockApps2 of 74
7 more in the record.The full enterprise standing →

How to read this

A category is asked six ways of each of fourteen models on behalf of each buyer segment, so a segment is eighty-four answers. An answer belongs on this page when the judge labeled Email on Acid neither its first choice nor an alternative in it; the products listed are the first choices those answers made, counted once per answer. An answer that named nothing first, or named Email on Acid only in passing, is in the denominator and adds to no product. The counts are not the category standing, which is on the category page with its share and rank; they are the same record read from Email on Acid's side.

Every answer and every label behind these figures is in the record, sent on request. The output is the models' output; nothing here is a recommendation by the index, and a product named instead of Email on Acid was named by a model, not endorsed by anyone.