Real-time / WebSocket Infrastructure
The clearest split is that Agora uses a freemium model and Stream uses a subscription model. Agora is Real-time audio, video, and interactive live streaming SDK with global SD-RTN network infrastructure; Stream is Activity feed and chat API infrastructure with scalable feed aggregation, reactions, and moderation. The data points Agora at chat applications and live collaboration features, and Stream at chat applications and live collaboration features. Pricing: Agora is freemium, free tier; Stream is subscription from $399.00/mo. Lock-in is low for Agora and medium for Stream, with DX at 5/5 vs 5/5 and transparency at 4/5 vs 4/5. On listed strengths, Agora emphasises chat applications and live collaboration features, and Stream emphasises chat applications and live collaboration features. Both offer an enterprise tier for larger rollouts. Honest trade-off: neither fits static projects, so if that is your context, look elsewhere; otherwise pick on the pivotal factor above and the DX score that matters most to your team.
Quick take
Agora is for chat applications; Stream is for chat applications; decide based on which pricing model fits your budget.
 Agora | | |
|---|---|---|
| Category | Real-time / WebSocket Infrastructure | Real-time / WebSocket Infrastructure |
| Pricing Model | freemium | subscription |
| Entry Price | — | $399.00/mo |
| Free Tier | Yes | Yes |
| Billing Complexity | — | — |
| Developer Experience | 5/5 | 5/5 |
| Pricing Transparency | 4/5 | 4/5 |
| Lock-in Level | low | medium |
| Migration Complexity | — | — |
| Data Portability | — | — |
| Enterprise | Available | Available |
| GitHub Stars | 785 | — |
| License | MIT | — |
Choose Agora if a freemium pricing model fits your procurement and your workload matches chat applications. Skip it if your context is static projects.
Not for: Static projects
Choose Stream if a subscription pricing model fits your procurement and your workload matches chat applications. Skip it if your context is static projects.
Not for: Static projects
Check each tool's dedicated page for deeper reviews, setup notes, and pros/cons.
Entry pricing is listed as unknown for Agora and $399.00/mo for Stream. Both offer a free tier for getting started. Total cost at scale depends on usage and plan details that are not in this dataset, so confirm with each vendor.
Agora is tagged with low lock-in (proprietary sd-rtn network and signaling; switching requires rewrite). Stream is tagged with medium lock-in (feed/chat api, data exportable). Plan for SDK replacement, data export, and a parallel-run period; the dataset does not include migration tooling details.
Both are rated 5/5 for developer experience in this dataset. With equal scores, the choice comes down to the specific SDK surface and docs you will use day to day. Run a short spike on each before deciding.
Yes for teams whose workload matches chat applications, since both list the same fit. Stream is flagged as not for static projects, so confirm your context does not fall there.
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