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 vs Stream
CometChat and Stream both land on Depends.
Stream
Depends
Confidence: Medium
Buy if you're a product team embedding chat, video, or activity feeds into an app you expect to scale.
| Compare | CometChat | Stream |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Apps where chat is the core product | Product teams adding in-app chat or video |
| Who it's not for | Solo founders needing a basic chat widget by Friday | Tiny apps at 100-500 MAUs . usage pricing is hard to justify |
| 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; Stream publishes a vulnerability disclosure policy and. |
| Support quality | Review base too thin to judge | No support evidence found |
| 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 | Developers consistently praise the SDKs' ease of use and documentation, while reviewers warn that usage-based pricing becomes a headache at scale.15 |
| Biggest gotcha | Patch the JS SDK and UI kits promptly . a stored-XSS CVE was disclosed in 2026⁹ | Usage-based pricing climbs steeply as your MAU count grows . model costs before committing |
Pick CometChat when
- Apps where chat is the core product
- Marketplaces, dating, and community apps
- Dev teams wanting chat, calling, and moderation in one SDK
- Regulated teams needing self-hosted chat (CometChat Air)
When CometChat is not a fit
- Solo founders needing a basic chat widget by Friday
- Non-technical teams . this is an SDK, not plug-and-play
- Anyone without budget headroom for per-MAU growth costs
- Apps where chat is a nice-to-have, not the product
Pick Stream when
- Product teams adding in-app chat or video
- Social and community apps needing activity feeds
- Apps expecting to scale to millions of users
- Teams wanting SDKs over self-building infrastructure
When Stream is not a fit
- Tiny apps at 100-500 MAUs . usage pricing is hard to justify
- Teams wanting only internal team chat . use Slack
- Non-technical teams . this is SDK/API territory, needs developers
- Anyone needing self-hosted chat or feeds
Sources
- CometChat Pricingcometchat.comofficial
- CometChat: In-app Chat SDK & APIcometchat.comofficial
- CometChat Air . Self-hosted enterprise messagingcometchat.comofficial
- CometChat Reviews . G2g2.comreview
- CometChat Reviews . Trustpilottrustpilot.comreview
- How Much Does CometChat Cost? 2026 Plans & Real MAU Costhackceleration.comreview
- CometChat Review 2026 . Findstackfindstack.comreview
- CometChat employee reviews . AmbitionBoxambitionbox.comreview
- CVE-2026-39154 . Stored XSS in CometChat JS SDKkitploit.comsecurity
- AIKIDO-2026-10360 . chat-uikit-react vulnerabilityintel.aikido.devsecurity
- CometChat Secures $6.5M . PRNewswireprnewswire.comnews
- NoBroker customer storycometchat.comofficial
- Stream homepagegetstream.ioofficial
- Stream product security pagegetstream.ioofficial
review
- Stream Pricing, Cost & Reviews . Capterracapterra.co.ukreview