Superhuman32 customers
Used by 32 companies on usedby, 6 of them in DevTools & Infrastructure. 3 also use Shortwave. Compare Shortwave and Superhuman
Source: superhuman.com, latest capture Oct 3, 2026.
Shortwave alternatives
What Shortwave customers also use, ranked by public customers.
3 of the 22 Shortwave customers on usedby also use another tool on this list. The tools most often used by the same companies are Superhuman (3 shared, 32 customers in all).Latest check Oct 7, 2026: 58 of 66 public lines checked. Customer counts include every proof level, job-post signals included. Shared customers are counted on confirmed or observed lines on both tools.
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Shortwave customers also use another tool on this list
Superhuman shares the most companies with Shortwave: 3 companies use both.
Ranked by shared customers
Tools of the same or a competing category, from another vendor, used by at least one company that also uses Shortwave. A shared customer has a confirmed or observed line on both tools.
| # | Alternative | Shared with Shortwave | Customers | Compare |
|---|---|---|---|---|
| 1 | SuperhumanMostly DevTools & Infrastructure (6) | 3 | 32 | Compare Shortwave vs Superhuman |
Other AI Email Clients tools on usedby
Same category, with public customers, but no company named with Shortwave yet.
Fyxer AI12 customers
Switch signals
A company that left one vendor's page and appeared on another's.
No switch publishedA switch needs a departure from one vendor's page, seen on two checks in a row, and a dated arrival on another. usedby does not publish departures yet, so no switch shows here.
By industry
Which of these tools the companies on usedby use, by industry. Each row counts the companies of that industry on usedby that use at least one of these tools.
| Industry | Most used | Next | Companies |
|---|---|---|---|
| DevTools & Infrastructure | Superhuman67% | Shortwave33% | 9 companies |
| HR & Recruiting | Superhuman60% | Shortwave40% | 5 companies |
Read the first row as: among the 9 DevTools & Infrastructure companies on usedby that use one of these tools, 67% use Superhuman. Shares can add up to more than 100% because some companies use two tools.
Questions about Shortwave alternatives
Which tool shares the most customers with Shortwave?
Superhuman: 3 companies use both on usedby. Superhuman has 32 customers in all. See who uses Superhuman.
Do Shortwave customers use other tools too?
3 of the 22 Shortwave customers on usedby also use another tool on this list. Superhuman shares the most: 3.
Which of Shortwave and its alternatives do DevTools & Infrastructure companies on usedby use?
Among the 9 DevTools & Infrastructure companies on usedby that use one of these tools, 67% use Superhuman. Shortwave comes next, with 33%.
Which of Shortwave and its alternatives do HR & Recruiting companies on usedby use?
Among the 5 HR & Recruiting companies on usedby that use one of these tools, 60% use Superhuman. Shortwave comes next, with 40%.
How does usedby rank Shortwave alternatives?
Only tools of the same or a competing category, from another vendor, count. They are ranked by shared customers: companies with a confirmed or observed line on both tools, from public pages, most with a dated capture. Tools with no shared customer are listed apart. Customer counts include every proof level, job-post signals included.