DubTab: DubTab is a Chrome and Edge browser extension that delivers real-time translated subtitles and optional AI voice dubbing for audio playing in any browser tab, including livestreams and online meetings. Substrata: AI sales intelligence platform that analyzes the social and emotional signals behind conversations to help dealmakers read buyer intent. The right pick comes down to team size, budget, and the workflows you want to automate.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist DubTab when following zoom, google meet or teams meetings in another language with live captions and dubbing matters most, and Substrata when coaching sellers on social dynamics in high-stakes conversations matters most. Trial each on a few real meetings before you commit — the better fit usually shows fast.
DubTab is a Chrome and Edge browser extension that delivers real-time translated subtitles and optional AI voice dubbing for audio playing in any browser tab, including livestreams and online meetings.
AI sales intelligence platform that analyzes the social and emotional signals behind conversations to help dealmakers read buyer intent.
DubTab is a browser extension for Chrome and Edge that translates spoken audio in real time as it plays in a browser tab. Rather than requiring file uploads or exports, it listens to the audio of whatever tab is playing and produces live translated subtitles on screen, optional bilingual (original plus translation) captions, and low-latency AI voice dubbing that speaks the translation aloud. The vendor states audio stays in the tab and only text segments are processed, and that translations appear with roughly half-a-second latency suitable for live content. It supports 50+ languages and offers voice selection and volume-ducking controls. Because it works on any site with audio, supported contexts include YouTube, Twitch, Netflix, Udemy, Coursera and Bilibili, as well as meeting and conferencing tools such as Zoom, Google Meet and Microsoft Teams, where it can show what participants are saying in real time. It is aimed at online learners, livestream and international-content viewers, and remote meeting participants who need on-the-fly interpretation and captioning.
Best suited for
Substrata is an AI sales coaching and deal intelligence platform that takes a different angle from typical conversation intelligence tools: rather than focusing on transcription and summaries, it analyzes the social and emotional signals beneath sales conversations. Its core function is to model buyer psychology, attitudes, and momentum across interactions to help professional dealmakers understand intent and power dynamics. A central component is SoundWave, a real-time conversational analytics engine that listens to sales calls and analyzes voice tone, pace, pauses, interruptions, and the push-pull of social dynamics, surfacing the why behind what is being said rather than just the words. Substrata applies this signal analysis across conversations and email exchanges to gauge buyer sentiment and engagement, giving sellers and revenue leaders a read on how deals are actually progressing. The platform is aimed at B2B revenue professionals and leaders, and is positioned for smaller and mid-sized dealmaking teams that want behavioral insight into negotiations and high-value conversations. It has been recognized as a high performer across sales coaching, AI sales assistant, conversation intelligence, sales analytics, and revenue operations categories. Pricing varies by plan. Check the official website for current pricing.
Best suited for
DubTab is a free tier with paid upgrades (freemium); Substrata is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | DubTab | Substrata |
|---|---|---|
| Core capability | Real-time translated subtitles overlaid on any audio-playing browser tab | SoundWave real-time analysis of tone, pace, pauses, and interruptions |
| Standout feature | Low-latency AI voice dubbing that speaks the translation aloud | Behavioral analysis of buyer attitudes, intent, and power dynamics |
| Team usage | Optional bilingual captions showing original and translation simultaneously | Email signal analysis for sentiment and engagement |
| Integrations | Support for 50+ languages with selectable AI voices | Deal momentum tracking across conversations |
| Languages & capture | Works across video, streaming and meeting platforms (YouTube, Twitch, Zoom, Google Meet, Teams, Udemy, Coursera) | Coaching insights focused on social and emotional cues |
| Best-fit workflow | In-tab audio processing with no file uploads required | SoundWave real-time analysis of tone, pace, pauses, and interruptions |
DubTab
Choose DubTab if you need following zoom, google meet or teams meetings in another language with live captions and dubbing — strengths include real-time, low-latency translation works live across meetings, courses and streams without pausing.
Substrata
Choose Substrata if you need reading buyer intent and sentiment during negotiations — strengths include analyzes social and emotional subtext beyond plain transcription.
DubTab
Substrata
It depends on your workflow. DubTab is strong for following zoom, google meet or teams meetings in another language with live captions and dubbing, while Substrata is strong for reading buyer intent and sentiment during negotiations. Both transcribe and summarize meetings.
DubTab is a free tier with paid upgrades and Substrata is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
You can — some teams pair them when each covers a different part of the meeting workflow.
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