Speak freely across languages — anywhere, with anyone.
DuoVox translates conversations as you speak. Whether you're travelling abroad or working with international clients, you'll understand the conversation in real time.
Windows arrives first via the Microsoft Store, with Android to follow on Google Play.
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.
On your phone for travel and face-to-face conversations, or on your computer for meetings, calls and media. Same experience, any device.
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 supports 51 languages and variants on paid tiers and 28 offline.
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.
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 | ✓ Standout | — | — | — | — |
| 50+ supported languages | ✓ | ✓ | ✓ | ✓ | ✓ |
| Automatic language detection | ✓ | ✓ | — | — | ✓ |
| Offline transcription (translation where supported) | ✓ | 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 | |||||
| Private Mode (no local logs) | ✓ Standout | — | — | — | — |
| 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 |
Comparison based on publicly available information as of June 2026; competitor features may change.
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.
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 — 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 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. If you'd like to help us keep building, you can support development directly.
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.
Windows is coming first via the Microsoft Store; Android to follow on Google Play. The full pricing structure shown above is locked in.
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 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 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.