Brandwave

How popular isWarmup Inbox?

In September 2026, people searched for Warmup Inbox by name about 3,600 times worldwide, a 24.1% increase from the previous year. These searches made up 5.8% of all global email warmup tool searches, placing Warmup Inbox fourth out of seven tools. When we asked both ChatGPT and Google AI Overviews about email warmup tools, Warmup Inbox appeared in three of the five answers and was the third most recommended of the seven.

Search and AI answers in September 2026

Warmup Inbox is the fourth most searched of 7 competitors and the third most recommended in AI answers.

  1. SmartleadShare of searches 64.7%Mentioned in 3 of 5 AI answersPlace in AI recommendations 5th
  2. WarmyShare of searches 10.6%Mentioned in 2 of 5 AI answersPlace in AI recommendations 6th
  3. MailReachShare of searches 8.6%Mentioned in 3 of 5 AI answersPlace in AI recommendations 2nd
  4. Warmup InboxShare of searches 5.8%Mentioned in 3 of 5 AI answersPlace in AI recommendations 3rd
  5. LemwarmShare of searches 4.6%Mentioned in 4 of 5 AI answersPlace in AI recommendations 4th

+2 more

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Top email warmup tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Warmup Inbox was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Warmup Inbox is the third most recommended of the seven.

Most recommended by AI

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

  1. Instantly1st
  2. MailReach2nd
  3. Warmup Inbox3rd
  4. Lemwarm4th
  5. Smartlead5th
  6. Warmy6th
  7. Warmbox7th

Mentioned by AI

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

  • Lemwarm4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Instantly4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Smartlead3 of 5Named in 2 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
  • Warmup Inbox3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Warmy2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Warmbox1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about email warmup tools

5 answers

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

Which email warmup tools compete with Warmup Inbox?

Warmup Inbox against email warmup tools worldwide, by month

Share of searches by month for Smartlead, Warmy, MailReach, Warmup Inbox, Lemwarm, Warmbox. The figures are in the table below the chart.

View monthly share of searches table
MonthSmartleadWarmyMailReachWarmup InboxLemwarmWarmboxInstantly
Oct 202552.5%15.7%8.5%5.6%10.5%5.6%1.6%
Nov 202546.1%25.2%7.5%4.9%7.5%7.5%1.3%
Dec 202531.6%47.1%6.3%5.1%6.3%2.7%0.88%
Jan 202648.6%21.7%7.9%6.5%9.7%4.3%1.4%
Feb 202648.3%21.6%9.6%5.2%9.6%4.3%1.4%
Mar 202656.2%13.7%9.2%6.1%9.2%4.1%1.6%
Apr 202657.4%11.5%11.5%6.2%7.6%4.2%1.6%
May 202660.2%12%9.8%5.3%8%3.5%1.2%
Jun 202661.7%10.1%10.1%6.7%6.7%3.5%1.3%
Jul 202662.5%10.2%10.2%6.8%5.5%3.6%1.2%
Aug 202661.1%10%10%8.1%5.4%4.4%1.1%
Sep 202664.7%10.6%8.6%5.8%4.6%4.6%1%

  1. 1.Smartlead

    64.7%

    Held 1st. 40.5K estimated branded searches, +22.4% vs prior month. Share +3.7 points.

  2. 2.Warmy

    10.6%

    Moved from 3rd to 2nd. 6.6K estimated branded searches, +22.2% vs prior month. Share +0.6 points.

  3. 3.MailReach

    8.6%

    Moved from 2nd to 3rd. 5.4K estimated branded searches, 0% vs prior month. Share -1.3 points.

  4. 4.Warmup Inbox

    5.8%

    Held 4th. 3.6K estimated branded searches, -18.2% vs prior month. Share -2.4 points.

  5. 5.Lemwarm

    4.6%

    Held 5th. 2.9K estimated branded searches, 0% vs prior month. Share -0.7 points.

  6. 6.Warmbox

    4.6%

    Held 6th. 2.9K estimated branded searches, +20.8% vs prior month. Share +0.2 points.

  7. 7.Instantly

    1%

    Held 7th. 650 estimated branded searches, +8.3% vs prior month. Share -0.1 points.

Compare popularity between Warmup Inbox and its closest rivals

Every comparison with Warmup Inbox

6 comparisons

How has branded search demand for Warmup Inbox changed worldwide over the last 12 months?

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Warmup Inbox worldwide rose from 2.9K to 3.6K.
  • Across the 12 months ending September 2026, Warmup Inbox’s share of searches among email warmup tools worldwide peaked at 8.1% in August 2026 and was lowest at 4.9% in November 2025.
  • Across the 12 months ending September 2026, Warmup Inbox rose from 6th to 4th among email warmup tools worldwide.

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

6 changes

  1. In September 2026, Warmy overtook MailReach to rank 2nd among email warmup tools worldwide, with 10.6% of the searches.

  2. In September 2026, Smartlead gained share of searches among email warmup tools worldwide, from 61.1% to 64.7%.

  3. In September 2026, Warmup Inbox lost share of searches among email warmup tools worldwide, from 8.1% to 5.8%.

  4. In September 2026, MailReach lost share of searches among email warmup tools worldwide, from 10% to 8.6%.

  5. In September 2026, Lemwarm lost share of searches among email warmup tools worldwide, from 5.4% to 4.6%.

  6. Warmbox’s share of searches among email warmup tools worldwide has gained ground for 3 months in a row, from 3.5% to 4.6% in September 2026.

How are Warmup Inbox’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using Warmup Inbox’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • warmup inbox

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How the Brand Demand Index is measured

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