8x8 vs Airmail vs Confluence vs RingCentral
| Attribute | ||||
|---|---|---|---|---|
| Category | Communication | Communication | Documentation Tools | Communication |
| Pricing | Paid | Paid | Free tier | Paid |
| Starting price | $24/month | — | $6.4/month | $30/month |
| Free tier | No | No | Yes | No |
| Free trial | Yes | No | Yes | Yes |
| Deployment | Cloud | — | Cloud | Cloud |
| API available | Unknown | Unknown | Unknown | Unknown |
| Platforms | — | — | — | ios, android, windows, macos |
| Certifications | — | — | — | — |
| Integrations | — | — | 2 | — |
| Company | Founded 1987 | — | — | Founded 2003 |
| Feature attributes | ||||
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.