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 Sendbird
CometChat and Sendbird both land on Depends.
Sendbird
Depends
Confidence: Medium
Buy if you're a funded product team embedding chat, voice, or AI support agents at serious scale.
| Compare | CometChat | Sendbird |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Apps where chat is the core product | Apps embedding in-app chat at scale |
| Who it's not for | Solo founders needing a basic chat widget by Friday | MVPs and hobby projects . heavy SDK, sales-led pricing |
| 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 | Public security program (security docs, ISO mentions, vulnerability submission form); a few third-party package flags exist. |
| Support quality | Review base too thin to judge | No usable evidence in sources |
| 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 | Users average 4.5/5 on G2 and generally praise the chat APIs, while some developers criticize pricing and prefer rivals' documentation.13 |
| Biggest gotcha | Patch the JS SDK and UI kits promptly . a stored-XSS CVE was disclosed in 2026⁹ | Malicious-package flags exist for Sendbird-related npm packages . verify official SDKs only. |
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 Sendbird when
- Apps embedding in-app chat at scale
- Enterprises adding AI support agents
- Teams wanting chat + voice via one SDK
- Funded startups with dedicated engineers
When Sendbird is not a fit
- MVPs and hobby projects . heavy SDK, sales-led pricing
- No-code or small teams without developers
- Anyone needing just a simple live-chat widget
- Cost-sensitive teams at high MAU . rivals undercut
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
review
- Sendbird Pricing (2026): A Complete Breakdowncometchat.comreview
- Chat API pricing planssendbird.comofficial
- Sendbird's Starter plan for 25K MAUgetstream.ioreview