DuoVox
Speak freely across languages — anywhere, with anyone.
DuoVox translates conversations in real time. Whether you're travelling abroad or working with international clients, you'll understand every word instantly.
Speak freely across languages — anywhere, with anyone.
DuoVox translates conversations in real time. Whether you're travelling abroad or working with international clients, you'll understand every word instantly.
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 designed to handle idioms, accents, and everyday language.
No signal? No problem. DuoVox includes built-in offline transcription that works without internet — available on all tiers. Perfect for holidays and travel.
On your phone for travel and face-to-face conversations, or on your computer for meetings, calls and media. Same experience, any device.
Audio is processed in real time and never stored. Transcriptions exist only on your device and are cleared when your session ends. Free tier works entirely on-device; paid tiers stream audio to our AI provider for processing only — it is not retained. Enable Private Mode for zero data retention.
Select a primary language and a target language. DuoVox supports 51 languages on paid tiers and 28 offline.
Hit the start button and speak naturally. DuoVox listens through your microphone and begins transcribing instantly.
Each language gets its own panel. You see your words on the left and the translation on the right — in real time.
DuoVox automatically detects who's speaking and routes text to the correct lane. Just talk naturally — it keeps up.
See how DuoVox stacks up against popular alternatives.
| Feature | DuoVox | Google Translate | iTranslate | SayHi | DeepL |
|---|---|---|---|---|---|
| Core Translation | |||||
| Real-time voice translation | ✓ | ✓ Turn-based | ✓ Turn-based | ✓ Turn-based | — |
| Dual-lane conversation view | ✓ Unique | — | — | — | — |
| 50+ supported languages | ✓ | ✓ | ✓ | ✓ | ✓ |
| Automatic language detection | ✓ | ✓ | — | — | ✓ |
| Offline transcription & translation | ✓ | Partial | Paid only | — | — |
| Professional Tools | |||||
| Subtitle export (SRT / VTT) | ✓ | — | — | — | — |
| Translate files (audio, video, docs) | ✓ | Text/docs only | — | — | ✓ Text only |
| Translation glossary | ✓ | — | — | — | ✓ |
| Desktop app (Windows) | ✓ | Web only | — | — | ✓ |
| Privacy & Security | |||||
| Zero-retention private mode | ✓ Unique | — | — | — | — |
| No account required | ✓ | Google account | Account required | — | Account required |
| No ads or tracking | ✓ | — | — | — | ✓ |
| Best for… | Travellers, professionals & teams | Casual text & voice | Casual voice | Quick phrases | Written translation |
DuoVox is optimised to handle accents, background noise, fast speech, and everyday language. Whether you're ordering coffee abroad or following a business meeting, DuoVox keeps up with the conversation.
Navigate 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 ProfessionalEnhanced 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.
ProfessionalTry DuoVox without signing up to a monthly plan. Buy credits as you need them — perfect for one-off translation, testing the service, or topping up beyond your subscription.
Pay-As-You-GoDuoVox launches soon on Google Play and the Microsoft Store. Subscriptions and Pay-As-You-Go credits are purchased in-app.
Default prices in USD. UK visitors see GBP and Eurozone visitors see EUR. 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 8+ hours per month.
Best for: businesses and professional interpreters
Best if you use it 20+ hours per month.
Best for: trial, occasional use or top-up
Try either tier without subscribing.
All subscriptions can continue beyond your monthly hours via Pay-As-You-Go. When you reach your cap you'll be offered three choices: buy additional hours, continue in free offline mode for the rest of the session (lower quality, no internet needed), or end the session — your choice. We never auto-charge beyond your subscription without explicit confirmation. See terms & conditions.
DuoVox is built by a small team. While the apps are still in development, you can follow progress and — if you'd like to help us keep building — buy us a coffee.
Yes. DuoVox uses dual-lane transcription with automatic language detection. Each speaker's words appear in their own panel, and translations appear alongside in real time.
No. Audio is processed in real time and immediately discarded. It is not stored on our servers or used for AI model training. On the Free tier, all processing happens entirely on your device.
DuoVox is in final testing. The full pricing structure shown above is locked in; we're working through store submission for Google Play and the Microsoft Store. The free version is fully functional and can be used today.
You'll be notified at 80% and at 100% of your monthly hours. When you reach 100% you'll have three choices: buy Pay-As-You-Go credits to keep going at your current quality level, switch to free offline mode (lower quality but works without internet) for the rest of the session, or end the session and wait for your next billing cycle. We never auto-charge you beyond your subscription without explicit confirmation.
Yes. DuoVox includes built-in offline transcription with 28 languages on all tiers, including Free. Offline translation is also available. 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 Google Play or 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 for legal, medical, safety-critical, financial or official purposes. Always verify important information independently.
Start with the free tier — no account, no credit card, no commitment.