Airmail vs Thunderbird:Which is more popular by branded search?
In August 2026, Thunderbird had more branded searches than Airmail among email clients worldwide. Thunderbird was estimated to have 823K branded searches compared to Airmail’s 18.1K, and held an 84.5% Share of Search versus Airmail’s 1.9%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Airmail or Thunderbird?
Compare the apps people manage email in. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Thunderbird, Airmail. The figures are in the table below the chart.
View monthly share of search table
| Month | Thunderbird | Superhuman | Spark | Airmail | Newton |
|---|---|---|---|---|---|
| Oct 2025 | 87.7% | 7.9% | 2.4% | 1.9% | 0.08% |
| Nov 2025 | 84.5% | 11.3% | 2.3% | 1.9% | 0.1% |
| Dec 2025 | 85.8% | 9.4% | 2.3% | 2.3% | 0.17% |
| Jan 2026 | 84.5% | 11.3% | 2.3% | 1.9% | 0.1% |
| Feb 2026 | 87.4% | 9.6% | 1.6% | 1.3% | 0.11% |
| Mar 2026 | 85.1% | 11.4% | 1.9% | 1.5% | 0.09% |
| Apr 2026 | 86.8% | 9.5% | 1.9% | 1.6% | 0.17% |
| May 2026 | 88.7% | 8% | 2% | 1.3% | 0.08% |
| Jun 2026 | 86% | 9.5% | 2.3% | 1.9% | 0.38% |
| Jul 2026 | 86.5% | 9.5% | 2.3% | 1.6% | 0.13% |
| Aug 2026 | 84.5% | 11.3% | 2.3% | 1.9% | 0.07% |
| Sep 2026 | — | — | — | — | — |
How has the Airmail and Thunderbird comparison changed over the last 12 months?
3 findings
- Thunderbird was ahead of Airmail in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Airmail’s estimated Share of Search among email clients worldwide held steady at 1.9%, and its estimated monthly branded searches moved from 22.2K to 18.1K.
- Across the 11 months ending August 2026, Thunderbird’s estimated Share of Search among email clients worldwide moved from 87.7% to 84.5%, and its estimated monthly branded searches moved from 1M to 823K.
How did search popularity change for email clients worldwide in August 2026?
2 changes
In August 2026, Thunderbird lost estimated Share of Search among email clients worldwide, from 86.5% to 84.5%.
Estimated monthly branded searches for Airmail worldwide fell 18.5% over 11 measured months, from 22.2K to 18.1K in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using Airmail’s and Thunderbird’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.
Airmail
1 branded search term
- airmail
Thunderbird
1 branded search term
- thunderbird
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.