--- title: "AI email assistants: Which brands are most popular in search?" description: "Compare the AI tools that help manage and write email. Share of Search among Superhuman, Shortwave, SaneBox and Mailbutler, the AI email assistants Brandwave compares worldwide, using the same methodology, market, and reporting period. 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." canonical: "https://gobrandwave.com/demand/global-en/categories/ai-email-assistants" publisher: "Brandwave" --- # AI email assistants: Which brands are most popular in search? Compare the AI tools that help manage and write email. Share of Search among Superhuman, Shortwave, SaneBox and Mailbutler, the AI email assistants Brandwave compares worldwide, using the same methodology, market, and reporting period. 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. ## Key facts - **Competitive set**: AI email assistants - **Market**: Global - **Brands compared**: 4 - **Month measured**: Aug 2026 - **Highest Share of Search**: Superhuman, 78.9% ## Which brand is most popular in search among AI email assistants worldwide? - In August 2026, Superhuman was the most searched among AI email assistants worldwide, with an estimated 110K branded searches and 78.9% estimated Share of Search within this set. - Shortwave is in 2nd place, 68.2 percentage points behind at 10.6% Share of Search. - Across the 11 months ending August 2026, SaneBox’s estimated Share of Search among AI email assistants worldwide decreased from 7.1% to 5.8%. - Across the 11 months ending August 2026, Mailbutler’s estimated Share of Search among AI email assistants worldwide increased from 3.1% to 4.7%. - Across the 11 months ending August 2026, Superhuman’s estimated Share of Search among AI email assistants worldwide peaked at 82.2% in November 2025 and was lowest at 77.2% in June 2026. - Across the 11 months ending August 2026, Shortwave’s estimated Share of Search among AI email assistants worldwide peaked at 13.1% in July 2026 and was lowest at 9% in November 2025. - Across the 11 months ending August 2026, SaneBox’s estimated Share of Search among AI email assistants worldwide peaked at 7.1% in December 2025 and was lowest at 4.8% in July 2026. - Across the 11 months ending August 2026, Mailbutler’s estimated Share of Search among AI email assistants worldwide peaked at 5.6% in June 2026 and was lowest at 2% in May 2026. - Across the 11 months ending August 2026, Superhuman and Shortwave held steady: their estimated Share of Search among AI email assistants worldwide each moved less than 0.5 percentage points. ## Compare search popularity between leading brands - [Superhuman vs Shortwave: compare search popularity](/demand/global-en/compare/shortwave-vs-superhuman): 78.9% against 10.6% Share of Search. - [Superhuman vs SaneBox: compare search popularity](/demand/global-en/compare/sanebox-vs-superhuman): 78.9% against 5.8% Share of Search. - [Superhuman vs Mailbutler: compare search popularity](/demand/global-en/compare/mailbutler-vs-superhuman): 78.9% against 4.7% Share of Search. - [Shortwave vs SaneBox: compare search popularity](/demand/global-en/compare/sanebox-vs-shortwave): 10.6% against 5.8% Share of Search. - [Shortwave vs Mailbutler: compare search popularity](/demand/global-en/compare/mailbutler-vs-shortwave): 10.6% against 4.7% Share of Search. - [SaneBox vs Mailbutler: compare search popularity](/demand/global-en/compare/mailbutler-vs-sanebox): 5.8% against 4.7% Share of Search. ## How did search popularity change for AI email assistants worldwide in August 2026? - In August 2026, Mailbutler gained estimated Share of Search among AI email assistants worldwide, from 2.1% to 4.7%. - In August 2026, SaneBox gained estimated Share of Search among AI email assistants worldwide, from 4.8% to 5.8%. - In August 2026, Shortwave lost estimated Share of Search among AI email assistants worldwide, from 13.1% to 10.6%. - In August 2026, Superhuman lost estimated Share of Search among AI email assistants worldwide, from 80.1% to 78.9%. ## Share of Search ranking | Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by | | --- | --- | --- | --- | --- | --- | | 1 | Superhuman | 78.9% | 110K | +48.6% | Superhuman | | 2 | Shortwave | 10.6% | 14.8K | +22.3% | Shortwave | | 3 | SaneBox | 5.8% | 8.1K | +84.1% | SaneBox | | 4 | Mailbutler | 4.7% | 6.6K | +247.4% | Mailbutler | ## Historical estimated branded-search demand | Month | Brand | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | Superhuman | 90.5K | 79.2% | 1 | | Oct 2025 | Shortwave | 12.1K | 10.6% | 2 | | Oct 2025 | SaneBox | 8.1K | 7.1% | 3 | | Oct 2025 | Mailbutler | 3.6K | 3.1% | 4 | | Nov 2025 | Superhuman | 110K | 82.2% | 1 | | Nov 2025 | Shortwave | 12.1K | 9% | 2 | | Nov 2025 | SaneBox | 8.1K | 6.1% | 3 | | Nov 2025 | Mailbutler | 3.6K | 2.7% | 4 | | Dec 2025 | Superhuman | 90.5K | 79.7% | 1 | | Dec 2025 | Shortwave | 12.1K | 10.7% | 2 | | Dec 2025 | SaneBox | 8.1K | 7.1% | 3 | | Dec 2025 | Mailbutler | 2.9K | 2.6% | 4 | | Jan 2026 | Superhuman | 110K | 80.6% | 1 | | Jan 2026 | Shortwave | 14.8K | 10.8% | 2 | | Jan 2026 | SaneBox | 8.1K | 5.9% | 3 | | Jan 2026 | Mailbutler | 3.6K | 2.6% | 4 | | Feb 2026 | Superhuman | 90.5K | 80.7% | 1 | | Feb 2026 | Shortwave | 12.1K | 10.8% | 2 | | Feb 2026 | SaneBox | 6.6K | 5.9% | 3 | | Feb 2026 | Mailbutler | 2.9K | 2.6% | 4 | | Mar 2026 | Superhuman | 110K | 81.9% | 1 | | Mar 2026 | Shortwave | 14.8K | 11% | 2 | | Mar 2026 | SaneBox | 6.6K | 4.9% | 3 | | Mar 2026 | Mailbutler | 2.9K | 2.2% | 4 | | Apr 2026 | Superhuman | 90.5K | 78.8% | 1 | | Apr 2026 | Shortwave | 14.8K | 12.9% | 2 | | Apr 2026 | SaneBox | 6.6K | 5.7% | 3 | | Apr 2026 | Mailbutler | 2.9K | 2.5% | 4 | | May 2026 | Superhuman | 74K | 79.2% | 1 | | May 2026 | Shortwave | 12.1K | 13% | 2 | | May 2026 | SaneBox | 5.4K | 5.8% | 3 | | May 2026 | Mailbutler | 1.9K | 2% | 4 | | Jun 2026 | Superhuman | 90.5K | 77.2% | 1 | | Jun 2026 | Shortwave | 12.1K | 10.3% | 2 | | Jun 2026 | SaneBox | 8.1K | 6.9% | 3 | | Jun 2026 | Mailbutler | 6.6K | 5.6% | 4 | | Jul 2026 | Superhuman | 74K | 80.1% | 1 | | Jul 2026 | Shortwave | 12.1K | 13.1% | 2 | | Jul 2026 | SaneBox | 4.4K | 4.8% | 3 | | Jul 2026 | Mailbutler | 1.9K | 2.1% | 4 | | Aug 2026 | Superhuman | 110K | 78.9% | 1 | | Aug 2026 | Shortwave | 14.8K | 10.6% | 2 | | Aug 2026 | SaneBox | 8.1K | 5.8% | 3 | | Aug 2026 | Mailbutler | 6.6K | 4.7% | 4 | | Sep 2026 | Mailbutler | — | — | — | | Sep 2026 | SaneBox | — | — | — | | Sep 2026 | Shortwave | — | — | — | | Sep 2026 | Superhuman | — | — | — | ## What is being compared - **Mailbutler**: Measured on the search term “mailbutler”. - **SaneBox**: Measured on the search term “sanebox”. - **Shortwave**: Measured on the search term “shortwave”. - **Superhuman**: Measured on the search term “superhuman”. - [Mailbutler](/demand/global-en/brands/mailbutler) - [SaneBox](/demand/global-en/brands/sanebox) - [Shortwave](/demand/global-en/brands/shortwave) - [Superhuman](/demand/global-en/brands/superhuman) ## Methodology - [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Which brand is most popular in search among AI email assistants worldwide? In August 2026, Superhuman was the most searched among AI email assistants worldwide, with an estimated 110K branded searches and 78.9% estimated Share of Search within this set. These are worldwide searches for English-language branded terms. ## Cite this page Brandwave. "AI email assistants: Which brands are most popular in search?". https://gobrandwave.com/demand/global-en/categories/ai-email-assistants This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/ai-email-assistants. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.