WarmEnvelopes vs Warmup Inbox
| WarmEnvelopes | Warmup Inbox | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | Yes |
| Paid from | €9/mo | $15/mo |
| Open source | No | No |
| Platforms | Web | api, Web |
| Free plan | Yes | Yes |
| Warmup network | private | — |
| Daily email limit | 1,000 /day | — |
| Custom warmup schedule | Yes | — |
| Spam monitoring | No | — |
Both are listed in Best Email Warmup Software. On Everything Xiaomi, WarmEnvelopes scores higher on our published basis.