AI assistants most often recommend DocuSign for e signature software in 🇯🇵 Japan (日本語), naming it in 100% of the buyer questions we tested, followed by HelloSign and Adobe Sign. We asked an AI model the questions buyers ask about e signature software and tallied which brands it named most — "share of voice" in AI answers, who AI recommends when no human is watching.
| # | Brand | AI share of voice |
|---|---|---|
| 1 | DocuSign | 6/6 (100%) |
| 2 | HelloSign | 6/6 (100%) |
| 3 | Adobe Sign | 2/6 (33%) |
| 4 | Freee | 2/6 (33%) |
| 5 | Notion | 1/6 (17%) |
| 6 | Signable | 1/6 (17%) |
| 7 | GMO電子署名 | 1/6 (17%) |
Method: 6 representative buyer questions via a large language model, 🇯🇵 Japan (日本語). Updated 10/26/2026. A proxy for how AI assistants describe this category.
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