Brandwave

Mail-Tester vs Mailtrap:Which is more popular?

In September 2026, Mail-Tester had more branded searches than Mailtrap among email deliverability testing tools worldwide. Mail-Tester had about 72,700 branded searches, while Mailtrap had 42,300. Mail-Tester made up 16.9% of all email deliverability testing tool searches we track, and Mailtrap accounted for 9.8%. When we asked ChatGPT and Google AI Overviews about email deliverability testing tools, Mail-Tester appeared in four of the five answers and Mailtrap in two. Mail-Tester was mentioned before Mailtrap in every answer that named either.

Among email deliverability testing tools worldwide in September 2026

Who do people search for more?

Mail-Tester, about 72% more searches than Mailtrap

Mail-Tester 72.7K searchesMailtrap 42.3K searches

Who does AI mention more?

Mail-Tester, mentioned in 4 of 5 answers, Mailtrap in 2

Mail-Tester in 4 of 5Mailtrap in 2 of 5

Who does AI recommend more?

Mail-Tester, named ahead of Mailtrap in 3 of 3 answers

Mail-Tester first in 3Mailtrap never first

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Top email deliverability testing tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Mail-Tester was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Mailtrap was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Mail-Tester was listed before Mailtrap in every answer that named either.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. GlockApps1st
  2. Mail-Tester2nd
  3. MailReach3rd
  4. MXToolbox4th
  5. Litmus5th
  6. Mailtrap6th
  7. InboxAlly–
  8. MailMonitor–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Mail-Tester4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • GlockApps4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • MailReach3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • MXToolbox2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Mailtrap2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Litmus2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • InboxAlly0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • MailMonitor0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about email deliverability testing tools

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is Mail-Tester or Mailtrap more popular in search?

This chart shows how often people search Google for Mail-Tester and Mailtrap by name. Each line represents a brand's share of searches for all eight email deliverability testing tools we track, month by month, from English-language searches worldwide.

Mail-Tester and Mailtrap among email deliverability testing tools worldwide, by month

Share of searches by month for Mail-Tester, Mailtrap. The figures are in the table below the chart.

View monthly share of searches table
MonthMXToolboxMail-TesterMailtrapGlockAppsMailReachInboxAllyLitmusMailMonitor
Oct 202566.5%16.6%13.8%1.5%0.97%0.24%0.19%0.19%
Nov 202568.6%16.6%11.7%1.5%1%0.2%0.2%0.2%
Dec 202566.2%16.6%13.9%1.5%1.2%0.29%0.19%0.24%
Jan 202668.3%17.1%11.8%1.2%1%0.22%0.16%0.2%
Feb 202668.2%17.1%11.7%1.2%1.2%0.24%0.16%0.2%
Mar 202668.8%16.6%11.8%1.2%1%0.17%0.16%0.16%
Apr 202670.5%14.4%12.1%1.3%1.3%0.21%0.17%0.14%
May 202668.5%16.6%11.8%1.2%1.2%0.2%0.16%0.2%
Jun 202668.3%16.7%11.7%1.5%1.2%0.2%0.16%0.16%
Jul 202668.1%17%11.7%1.5%1.2%0.21%0.13%0.13%
Aug 202667.1%17.6%11.6%1.5%1.5%0.29%0.2%0.2%
Sep 202670%16.9%9.8%1.5%1.3%0.24%0.14%0.14%

How has the Mail-Tester and Mailtrap comparison changed over the last 12 months?

3 findings

How did search popularity change for email deliverability testing tools worldwide in September 2026?

2 changes

  1. In September 2026, Mailtrap lost share of searches among email deliverability testing tools worldwide, from 11.6% to 9.8%.

  2. In September 2026, Mail-Tester lost share of searches among email deliverability testing tools worldwide, from 17.6% to 16.9%.

How are branded searches counted?

8 search terms

Brandwave collects information about searches that people make online using Mail-Tester’s and Mailtrap’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Mail-Tester

4 branded search terms

  • mail-tester
  • mail-tester email testing
  • mail-tester software
  • mailtester

Mailtrap

4 branded search terms

  • mailtrap
  • mailtrap email sandbox
  • mailtrap email testing
  • mailtrap io

How the Brand Demand Index is measured

Other head-to-heads among email deliverability testing tools

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