| Price from | Free | €3/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 4 |
| Spec score · Team chat apps | 8.1 (#32) | 9.2 (#5) |
| API | Stoat has a public API used by the official apps, and the site says developers can use it to build bots or custom clients. | The public API uses my.whaller.com/api endpoints, an auth_token parameter and JSON-RPC 2.0 responses, with documented organization, profile, sphere and request operations. |
| Founded | Stoat says it started in 2021 as an open-source chat app without ads. | 2013 |
| Free plan | Yes | Yes |
| Integrations | GitHub (via webhook); bots; external services via webhooks | Whaller lists BigBlueButton, Zoom, Glowbl, Google Drive, OneDrive, LinkedIn, Zapier, Draft.io, Mistral AI, OpenSezam and WaToo integrations. |
