Discord vs Mailbird vs Postbox
| Attribute | |||
|---|---|---|---|
| Category | Communication | Communication | Communication |
| Pricing | Free tier | Free tier | Paid |
| Starting price | $2.99/month | $3.22/seat/month | — |
| Free tier | Yes | Yes | No |
| Free trial | No | No | Unknown |
| Deployment | Cloud | — | — |
| API available | Unknown | Unknown | Unknown |
| Platforms | ios, android, windows, macos | — | — |
| Certifications | — | — | — |
| Integrations | 3 | — | — |
| Company | Founded 2015 | — | — |
| Feature attributes | |||
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Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.