Live ranking by how often ChatGPT, Perplexity & Google AI name each brand when buyers ask for the best e-signature software. As buyers move to AI to choose, the brands at the top win the customer.
| # | Brand | AI mention share | |
| 🥇 | DocuSign | 100% | |
| 🥈 | Adobe Sign | 80% | |
| 🥉 | Assinar.com | 80% | |
| 4 | Clicksign | 80% | |
| 5 | Legitimidsign | 60% | |
| 6 | Microsoft 365 | 20% | |
| 7 | Google Workspace built-in | 20% | |
| 8 | OneSpan | 20% | |
| 9 | Certisign | 20% | |
| 10 | HelloSign | 20% |