| Price from | $400/mo | $239/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 3 | 4 |
| Spec score · Chat APIs | 8.2 (#7) | 8.5 (#3) |
| Founded | 2020 | 2009 |
| Headquarters | Toronto, Canada | Denver, Colorado, United States |
| Messaging | The launch sprint supports one-to-one conversations, private groups, channels, membership, and message history. | Its messaging features include one-to-one and group chat, file sharing, voice notes, message history, threaded replies, and read receipts. |
| Moderation | Safety capabilities include reporting, blocking, moderator controls, and application-specific enforcement paths. | The chat product includes rule-based AI moderation, and the maker describes contextual moderation and integrations with OpenAI moderation models or a customer's own moderation service. |
| Product | ChatKitty provides a production-ready messaging core with open-source integrations for marketplace and community products. | CometChat provides in-app chat, voice and video calling, and conversational AI agent capabilities for applications. |
| Security | Chat Functions run in a secure cloud environment and can implement custom authentication logic, including Firebase token verification. | The maker states that CometChat is HIPAA compliant and can enter into a BAA, and is certified for ISO 27001 and SOC 2 Type 2. |
| Support | The launch sprint includes production planning, release support, and 14 days of post-launch defect correction for the agreed scope. | CometChat describes multiple support tiers with options for faster response times, architectural reviews, and production guidance. |
