Shortwave vs Spark Mail vs Superhuman
| Attribute | |||
|---|---|---|---|
| Category | Communication | Communication | Communication |
| Pricing | Free tier | Free tier | Paid |
| Starting price | $7/month | $4.99/month | $30/month |
| Free tier | Yes | Yes | No |
| Free trial | Yes | Yes | Yes |
| Deployment | — | — | — |
| API available | Unknown | Unknown | Unknown |
| Platforms | — | — | — |
| Certifications | — | — | — |
| Integrations | 5 | — | 5 |
| Company | — | — | — |
| Feature attributes | |||
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Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.