Speak freely across languages — anywhere, with anyone.
Built for professional interpreters, and for anyone in a two-language conversation. DuoVox writes down both sides of the conversation as it happens, in both languages, so you can follow and check every detail in real time.
Plays from YouTube. Watch on YouTube
For Windows 10 and 11, from the Microsoft Store.
See both sides of the dialogue separately, so nothing gets mixed up. Each language gets its own dedicated panel with real-time text.
From English and Russian to Japanese, Arabic, Hindi and many more. The full interface is available in every supported language, not just the transcription.
Get fast, natural-sounding translations that follow the flow of real speech. DuoVox is built to cope with real-world speech — idioms, accents, and everyday language — though accuracy can vary.
No signal? No problem. DuoVox includes built-in offline transcription that works without internet on every tier, with offline translation available where device resources allow. Great for holidays and travel.
Teams, Zoom, Google Meet and WhatsApp calls, YouTube and films, with nothing joining the meeting. Or switch to the microphone for the people in the room. Video calls →
We don't store your audio. On paid tiers it's streamed to our AI provider for processing only and is not intentionally retained; the provider may keep limited operational logs under its own policy. Enable Private Mode for the strictest option.
Select a primary language and a target language. DuoVox offers 49 languages — 43 on Professional, 33 on Standard, and 30 that work offline on Free.
Hit the start button and speak naturally. DuoVox listens through your microphone and transcribes the conversation in real time.
Each language gets its own panel. You see your words on the left and the translation on the right — in real time.
DuoVox uses automatic language detection to route each side to its own lane; you can switch lanes if needed. Just talk naturally — it keeps up.
Built for real two-way conversations on your PC — see how it compares with the most popular translation apps.
| Feature | DuoVox | Google Translate | iTranslate | Microsoft Translator | DeepL |
|---|---|---|---|---|---|
| Live Conversations | |||||
| 4-box dual-lane viewBoth speakers’ words and both translations on screen at the same time | ✓ 4 live boxes Standout | Phone split screen | — | Phone split screen | Face-to-face split screen |
| Continuous, hands-free translationJust talk — no tapping a button and waiting your turn | ✓ Continuous | Conversations take turns | Turn-based | Turn-based | Paid plans only (DeepL Voice) |
| Captions anything playing on your PCCalls, meetings, YouTube and films — from any app | ✓ Any app Standout | — | — | — | Teams, Zoom & Meet only (paid) |
| Works Your Way | |||||
| Free offline modeNo internet needed, and your audio never leaves your PC | ✓ Free plan, 30 languages | Text and camera; live on Pixel phones only | Paid only | Text only | — |
| Desktop app for Windows | ✓ | Web only | Web and Mac only | Retired in 2021 | ✓ |
| Professional Tools | |||||
| Subtitles from live sessions and media filesReady-to-use SRT and VTT files, transcribed and, if you want, translated | ✓ Professional Standout | — | — | — | Existing subtitle files only |
| Glossary & keyword boostNames, jargon and specialist terms come through right | ✓ Professional | — | — | — | ✓ Glossary |
| Privacy & Security | |||||
| Private ModeCaptions are cleared when you stop, with no local log, copy or export | ✓ Professional Standout | — | — | — | — |
| No third-party ads or tracking | ✓ | — | — | ✓ Apps | No ads; tracking on its website |
| Best for… | Live two-way conversations, calls and videos on your PC | Casual text & voice | Casual voice | Phrase-by-phrase translation on a phone | Written translation & business meetings |
No account needed. Free forever.
Competitor information checked on 6 October 2026 against each company’s own website and app store listings. — means not offered, or not found on the company’s own pages. Features change often; if anything here is out of date, please tell us at support@duovox.net.
DuoVox is built to cope with real-world speech — accents, background noise, fast talkers — though accuracy can vary. Whether you're ordering coffee abroad or following a business meeting, DuoVox aims to keep up with the conversation.
Enhanced terminology recognition for specialist professional settings, with Private Mode for sensitive content. As an assistive aid, DuoVox supports — but does not replace — a qualified human interpreter.
How DuoVox helps interpreters →
ProfessionalNavigate foreign cities, order food, ask for directions, follow lectures, and have real conversations with locals. Works offline when you don't have signal.
Free or StandardFollow international meetings, client calls, and negotiations in real time. Export subtitles and translate documents for your records.
Standard or ProfessionalTry DuoVox without signing up to a monthly plan. Buy credits as you need them — great for one-off translation, testing the service, or topping up beyond your subscription.
Pay-As-You-GoPick the plan that fits how you talk — from free offline use to advanced AI translation for professionals. Subscriptions and Pay-As-You-Go credits are purchased in-app.
Default prices in USD. UK visitors see GBP. DuoVox is not yet available in the EU or EEA. Microsoft Store and Google Play charge the equivalent in your local currency at checkout. All subscriptions can be cancelled at any time.
Best for: trying it out & offline privacy
No account needed. Free forever.
Best for: travellers, students & everyday bilingual chat
Best if you use it 10+ hours per month.
Best for: businesses and professional interpreters
Best if you use it 28+ hours per month.
Best for: trial, occasional use or top-up
Try either tier without subscribing.
On a subscription, Pay-As-You-Go hours you already hold take over automatically when your monthly hours run out — even mid-session, so a long call carries on without a break. If you hold none, you'll be offered three choices: buy hours (they're ready for your next session), continue in free offline mode for the rest of the session (lower quality, no internet needed), or end the session. We never auto-charge beyond your subscription without explicit confirmation. See terms & conditions.
DuoVox is built by a small team. If you'd like to help us keep building, you can support development directly.
Watch our short getting-started video. It shows how to choose your two languages, choose what DuoVox listens to, start captioning, change the layout and find everything else in the menu. Every other feature has its own short video in our video tutorials. The menu in the app also has a full User guide and Help.
Yes. DuoVox uses dual-lane transcription with automatic language detection to route each side to its own lane; you can switch lanes if needed. Each speaker's words appear in their own panel, and translations appear alongside in real time.
We don't store your audio. On paid tiers it's streamed to our AI provider for processing only and is not intentionally retained; the provider may keep limited operational logs under its own policy. Enable Private Mode for the strictest option. On the Free tier, all processing happens entirely on your device.
For Windows 10 and 11, from the Microsoft Store.
If you hold Pay-As-You-Go hours, they take over automatically and your session carries on — so if you have a long call coming and your plan is nearly used, buy an hour or two first. Otherwise you'll be warned as your hours run low, and when they run out you can buy hours for your next session, continue in free offline mode, or end the session. We never auto-charge you beyond your subscription without explicit confirmation.
Yes. DuoVox includes built-in offline transcription with 30 languages on every tier, including Free. Offline translation is available where your device resources allow. AI-powered features require an internet connection.
No. DuoVox works without accounts or sign-ups. Download the app and start using it immediately. Subscriptions are managed through the Microsoft Store.
DuoVox uses AI-powered speech recognition and machine translation to assist communication. Like all transcription and translation tools, results may contain errors and should not be treated as a verbatim or certified record. Accuracy can be affected by background noise, accents, microphone quality, overlapping speech and domain-specific terminology. DuoVox is a communication aid and should not be relied upon as the only source of meaning in legal, medical, safety-critical, financial or official situations. Always verify important information independently.
Start with the free tier — no account, no credit card, no commitment.