Warmup Inbox vs WarmupHero
| Warmup Inbox | WarmupHero | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | Yes | No |
| Paid from | $15/mo | Free |
| Open source | No | No |
| Platforms | api, Web | extension, Web |
| Free plan | Yes | Yes |
| Warmup network | — | shared |
| Spam monitoring | — | Yes |
Both are listed in Best Email Warmup Software. On Samsung Mobile US Press, WarmupHero scores higher on our published basis.