| Price from | $9/mo | $5/mo |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| iOS | Yes | — |
| Android | Yes | — |
| Plans published | 5 | 4 |
| Spec score · Email Tracking Software | 9.0 (#9) | 7.3 (#40) |
| Integrations | Close integrates with Claude, ChatGPT, Zoom, Segment, Zapier, Calendly, and over 100 apps. | Vocus.io lists Salesforce, Pipedrive, other CRMs, Zapier, and webhooks; CRM connections can use smart BCC. |
| Team collaboration | Team features include collaboration, roles, permissions, mentions, comments, and user groups. | Teams can centralize billing and share snippets, mail merge reports, email activity, and analytics. |
