Mailbird vs Postbox vs Shortwave vs Spark Mail
| Attribute | ||||
|---|---|---|---|---|
| Category | Communication | Communication | Communication | Communication |
| Pricing | Free tier | Paid | Free tier | Free tier |
| Starting price | $3.22/seat/month | — | $7/month | $4.99/month |
| Free tier | Yes | No | Yes | Yes |
| Free trial | No | Unknown | Yes | Yes |
| Deployment | — | — | — | — |
| API available | Unknown | Unknown | Unknown | Unknown |
| Platforms | — | — | — | — |
| Certifications | — | — | — | — |
| Integrations | — | — | 5 | — |
| Company | — | — | — | — |
| Feature attributes | ||||
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.