Meaning over literal
Aims to say what you meant, the way a person would say it in the other language.
Real-time voice interpreter for iPhone
Speak your language.
Be heard in theirs.
NUA sits on one iPhone between two people. Tap the orb once, then just talk. NUA says it out loud in the other language — built to carry the meaning, feeling, and pace, not only the words.
Illustrative example
One phone, two voices
Set it down between you.
Then just talk.
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Lay the iPhone between you
Put it flat on the table. The top half faces the other person, the bottom half faces you.
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Each half reads the right way up
Their half is turned around so they can read it from across the table. Each side shows its own language and whose turn it looks like.
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Tap the orb once
That's the only thing that turns the mic on. After that, nobody presses a button — each person speaks when ready.
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NUA speaks for you
When you pause, NUA says it in their language, and a soft light flows toward the person who should listen.
Hear the meaning
Not just the words.
The way you said them.
Word-for-word translation loses what people actually mean. NUA is built around a different goal: carry the intent and the feeling across, in a voice that keeps your pace.
You · Korean
NUA · English
Feeling and tone
Warm should stay warm, a joke should stay light, and urgency should still sound urgent. That's the target.
Your pace
Designed to follow how fast or slowly you speak, instead of one flat reading speed.
Rhythm and pauses
Waits for the speaker to finish before answering, then speaks with natural pauses of its own.
This is the direction NUA is built toward, not a promise. Results vary by language, voice, and setting, and the prototype is still being tested.
Interactive walkthrough
Try the flow. No mic needed.
A working copy of NUA's screen, built into this page. Tap the orb, change languages, and take turns with short sample lines.
Illustrative demo Nothing is recorded, played, or sent anywhere. Sample lines are in English and Korean.
Take a turn
Start the conversation first: tap the orb on the phone.
What was saidSample lines
- Lines appear here as people take turns.
Orb states
- Tap to startMic off. Nothing listens until you tap.
- ConnectingGetting the interpreter ready.
- ListeningFollows the mic level. Speak either language.
- Waiting for you to finishNUA holds its voice until the speaker pauses.
- InterpretingGetting the translation ready.
- SpeakingTakes on the listener's language; light flows toward them.
- MutedMic off until Unmute.
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1
Tap the orb to start
The mic stays off until this tap. In the app, this is the only way to start.
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2
Pick each person's language
Before you start, tap the language on either half to search all 14. Picking the other person's language swaps the two.
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3
Take turns talking
Each person talks when ready. In this demo, the buttons above stand in for someone speaking.
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4
Mute or stop anytime
While running, Mute turns the mic off and Stop ends the conversation. Tap the orb while NUA talks to cut its voice.
Two-way interprets both people. One-way interprets only your language into theirs. One-way is new in the current build and hasn't been tested in real conversations yet.
Languages
14 languages.
Pick one for each person.
Each person chooses their own language, and NUA interprets between the two. Search by English name, native name, or code.
Arabic runs on GPT-Live, NUA's default engine. Flags in the app are a visual cue for the language, not a nationality.
FAQ
Good to know
Can I download NUA?
Not yet. NUA is an iPhone prototype that runs as a development build. It isn't on the App Store, and there's no sign-up or waitlist on this page.
Does it need the internet?
Yes. Interpretation runs on OpenAI's real-time voice models over the network, so NUA needs a connection to work.
Do we press a button every time we talk?
No. Tap the orb once to start. After that, each person speaks when they're ready and NUA interprets automatically when they pause. Mute turns the mic off; Stop ends the conversation.
What's the difference between Two-way and One-way?
Two-way interprets both people. One-way interprets only your language into theirs, for when you just need to be understood. One-way is new in the current build and hasn't been tested in real conversations yet.
Where does the audio go?
By default NUA uses GPT-Live: your speech and the spoken interpretation travel directly between the iPhone and OpenAI, which does the interpreting. The NUA server helps set up that connection and receives only numeric diagnostics such as timing, not what was said. The in-app History is kept in memory, not stored permanently. Audio handled by OpenAI is subject to OpenAI's own policies.
How good is the interpretation?
NUA is built to carry meaning, feeling, and pace in every language it offers. Like any interpreter, it can still make mistakes, and results depend on the speaker and the setting.