CometChat
Depends
Confidence: Medium
Buy if you're a dev team adding chat as a core feature of your app and can absorb per-MAU costs at scale.
Comparison
CometChat and TalkJS both land on Depends.
Buy if you're a dev team adding chat as a core feature of your app and can absorb per-MAU costs at scale.
Buy if your product needs embedded user-to-user chat and you want to skip building messaging infrastructure.
| Compare | CometChat | TalkJS |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Apps where chat is the core product | SaaS apps adding user-to-user chat |
| Who it's not for | Solo founders needing a basic chat widget by Friday | Support-widget-only needs . use a live-chat tool |
| Privacy | Active vulnerability disclosure program and compliance efforts, but a 2026 stored-XSS CVE affected the JS SDK and a React UI kit was flagged high-severity.⁹ | No known public vulnerabilities found in the sources reviewed.14 |
| Support quality | Review base too thin to judge | No evidence in sources reviewed |
| Public sentiment | Third-party reviews are sparse: G2 names it a High Performer with mostly positive feedback, while at-scale pricing draws the loudest criticism.⁴ | The few public commenters praise TalkJS as customizable and easy to integrate, but review volume is tiny.16 |
| Biggest gotcha | Patch the JS SDK and UI kits promptly . a stored-XSS CVE was disclosed in 2026⁹ | G2 lists $279-$569/mo; volume-based cost details beyond that are scarce15 |