Superhuman vs Thunderbird:Which is more popular by branded search?
In August 2026, Thunderbird had more branded searches than Superhuman among email clients worldwide. Thunderbird was estimated to have 823K branded searches compared to Superhuman’s 110K, and held an 84.5% Share of Search versus Superhuman’s 11.3%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Superhuman 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, Superhuman. 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 Superhuman and Thunderbird comparison changed over the last 12 months?
3 findings
- Thunderbird was ahead of Superhuman in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Superhuman’s estimated Share of Search among email clients worldwide moved from 7.9% to 11.3%, and its estimated monthly branded searches moved from 90.5K to 110K.
- 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, Superhuman gained estimated Share of Search among email clients worldwide, from 9.5% to 11.3%.
In August 2026, Thunderbird lost estimated Share of Search among email clients worldwide, from 86.5% to 84.5%.
How each brand is measured
Brandwave collects information about searches that people make online using Superhuman’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.
Superhuman
1 branded search term
- superhuman
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.