Mailproof vs Outsolvi
| Mailproof | Outsolvi | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | Yes |
| Paid from | $0.33/mo | $7/mo |
| Open source | No | No |
| Platforms | extension, Web | extension, macOS, Web, Windows |
| Free plan | Yes | No |
| Open tracking | Yes | Yes |
| Link tracking | Yes | — |
| Email client support | gmail | — |
| CRM integrations | 0 | — |
| Activity alerts | Yes | — |
| Paid from | — | 7 /user/mo |
| Reply tracking | — | Yes |
Both are listed in Best Email Tracking Software. On Samsung Mobile US Press, Mailproof scores higher on our published basis.