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. Luster: AI Predictive Enablement platform that pairs realistic sales roleplay with live-call analysis to find and close rep skill gaps. 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 Luster when identifying which reps are at risk of underperforming on upcoming deals 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 Predictive Enablement platform that pairs realistic sales roleplay with live-call analysis to find and close rep skill gaps.
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
Luster is a sales enablement platform that describes its approach as Predictive Enablement, combining AI-powered roleplay practice with analysis of real sales conversations. Reps rehearse high-stakes scenarios such as discovery calls and objection handling against AI buyer personas tuned to different sales stages, personas, and deal sizes, and receive feedback designed to surface where they are likely to struggle before those weaknesses show up in live deals. The platform pairs this practice environment with a live-call analysis capability the company calls EchoIQ, which reviews actual customer calls to detect how well reps apply the skills they have been practicing and where execution gaps remain. For managers and enablement leaders, Luster provides predictive insights into skill readiness, prescriptive guidance for onboarding and hiring, certification workflows, and AI-assisted coaching so that practice can be scaled across a go-to-market team. Luster is aimed at sales reps, frontline managers, and enablement teams who want to connect roleplay performance to real revenue outcomes rather than treating training as a one-off event. Pricing varies by plan. Check the official website for current pricing.
Best suited for
DubTab is a free tier with paid upgrades (freemium); Luster is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | DubTab | Luster |
|---|---|---|
| Core capability | Real-time translated subtitles overlaid on any audio-playing browser tab | AI roleplay environment for rehearsing discovery, objection handling, and other high-stakes scenarios |
| Standout feature | Low-latency AI voice dubbing that speaks the translation aloud | Buyer personas configurable by sales stage, persona type, and deal size |
| Team usage | Optional bilingual captions showing original and translation simultaneously | EchoIQ live-call analysis that reviews real customer conversations for skill application |
| Integrations | Support for 50+ languages with selectable AI voices | Predictive insights that flag rep readiness risk and skill gaps |
| Languages & capture | Works across video, streaming and meeting platforms (YouTube, Twitch, Zoom, Google Meet, Teams, Udemy, Coursera) | AI-assisted coaching tools for managers to scale feedback |
| Best-fit workflow | In-tab audio processing with no file uploads required | Certification and onboarding workflows for enablement teams |
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.
Luster
Choose Luster if you need letting sdrs and aes rehearse cold calls and discovery conversations with ai buyers before live calls — strengths include connects practice performance with analysis of real live calls rather than roleplay alone.
DubTab
Luster
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 Luster is strong for letting sdrs and aes rehearse cold calls and discovery conversations with ai buyers before live calls. Both transcribe and summarize meetings.
DubTab is a free tier with paid upgrades and Luster is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Sure. Running both makes sense when their strengths don't overlap and the budget allows.
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