A head-to-head comparison to help streamers choose the right live captioning and translation tool in 2026.
Try StreamTranslate FreeStreamTranslate is purpose-built for live streamers — powered by our industry-leading speech AI, supporting 125+ languages, and delivered as an OBS browser source with zero software installation.
| Feature | StreamTranslate | Rev |
|---|---|---|
| Real-time live captions | Yes — < 500ms | No — post-production |
| Translation | 125+ languages, instant | Manual, extra cost |
| OBS integration | Native browser source | None |
| Pricing model | Flat monthly | Per-minute charges |
| Live stream support | Purpose-built | VOD/recorded focus |
| Turnaround for content | Instant / real-time | Minutes to hours |
Rev is the gold standard for post-production captions and transcripts — but it cannot caption your stream in real time. For live streaming, StreamTranslate is the right choice: instant captions, 125+ languages, and OBS-native setup.
StreamTranslate connects directly to OBS as a browser source — no plugins, no encoding changes, no latency hit. With 125+ languages and our industry-leading speech AI accuracy, it is the clear choice for streamers growing an international audience.
Start for FreeRev is primarily a transcription and human captioning service for recorded content. Real-time live stream captioning is not their core product — turnaround times are measured in minutes to hours, not milliseconds.
Rev uses human captioners for high-accuracy results in VOD content. StreamTranslate uses our industry-leading speech AI for real-time accuracy that is competitive with human transcription at zero latency.
Rev offers manual translation services at additional cost per minute. StreamTranslate translates into 125+ languages instantly and automatically during your live stream.
Rev charges per minute of content — costs add up quickly for streamers who go live for hours. StreamTranslate's flat monthly subscription covers unlimited streaming hours.
StreamTranslate — it is built for live streaming with real-time captions, OBS integration, unlimited stream time, and automatic translation into 125+ languages.