Substack vs Upland Adestra
| Substack | Upland Adestra | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Android, iOS, Web | Web |
| Free plan | Yes | No |
| Email automation | Yes | Yes |
| Audience segmentation | Yes | Yes |
| Landing pages | — | Yes |
| A/B testing | — | Yes |
Both are listed in Best Email Marketing Software. On Samsung Mobile US Press, Substack scores higher on our published basis.