Shortwave vs Spike
| Shortwave | Spike | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | Yes | No |
| Paid from | $30/mo | $4/mo |
| Open source | No | No |
| Platforms | Android, iOS, macOS, Web, Windows | Android, iOS, macOS, Web, Windows |
| Free plan | Yes | Yes |
| Paid from | $30/user/mo | $4/user/mo |
| App coverage | all | all |
| Unified inbox | No | Yes |
| Scheduled sending | Yes | Yes |
| Calendar tools | Yes | Yes |
| Account limit | — | 3 accounts |
Both are listed in Best Email Clients, Best AI Personal Assistants. On Samsung Mobile US Press, Spike scores higher on our published basis.