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accounts, sign-ins or servers to trust
Every word, understood in the room.
Ieum puts live captions and translation on your Mac during a meeting. The other side speaks English and you read Korean. You answer in Korean and they can read English. All of it happens on your Mac.
Coming soon for Mac
See how it reads
Requires macOS 26.4 or later on a Mac with Apple silicon for translation. No account and no cloud.
이음
I · E · U · M
the act of connecting, a join
One conversation, two languages.
Pick a meeting mode and start. Conversation mode listens for English and Korean at once and decides which one you spoke, sentence by sentence.
Conversation
Both directions in one stream. English is shown with Korean beneath it. Korean is shown with English beneath it.
ENCould you share the schedule for next week?다음 주 일정을 공유해 주시겠어요?
KO네, 공유해 드리겠습니다.Yes, I'll share it with you.
ENWhat about the budget?예산은 어떻게 되나요?
English to Korean
For the meeting where you mostly listen. Read the speaker in Korean as they talk.
English한국어
Korean to English
For the meeting where you present. Show the room your words in English.
한국어English
What is said in the room stays in the room.
Speech recognition and translation use the models built into macOS. Your audio is processed in memory on your Mac and never uploaded.
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network requests made by Ieum
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recordings kept. Only the text script is saved
macOS downloads a language model the first time you use a language, so that one step needs a network connection. After that, Ieum works with Wi-Fi switched off.
Built to be read from across the table.
The subtitle bar is large, calm and out of the way. Everything about it is yours to adjust.
A subtitle bar made for distance
Large type, one to four lines, and the translation set apart from the original so your eye never has to search. Interim words appear dimmed and settle when the sentence is final.
Solid
Glass
Fade
Paper
Stays out of your way
Fades when nobody is speaking. Click through it to reach the window beneath.
⌃⌥Sstart
⌃⌥Hhide
⌃⌥Dpanel
⌃⌥Lswap
Your vocabulary
List the names, products and jargon of the meeting. Ieum corrects them in the transcript before translating, so "Kubernetes" stays "Kubernetes".
A transcript panel
Switch to a timestamped scrollback you can select and copy, and that scrolls itself while you listen.
A script, when it ends
Each meeting is saved as a plain text file you can open anywhere.
[10:02:14] [EN] Could you share the schedule for next week?
→ 다음 주 일정을 공유해 주시겠어요?
[10:02:19] [KO] 네, 공유해 드리겠습니다.
→ Yes, I'll share it with you.
- First words appear
- about 1 secondafter speech starts
- A finished sentence is translated
- about 1 secondafter it ends
- Language picked correctly
- 4 of 4sentences, English and Korean mixed
- CPU and memory
- 2–4%, 25 MBwhile running
Measured with synthesized speech played through the real engines on an Apple silicon Mac running macOS 26. A real room with several people and distant voices will be harder. We publish how we measure, and what the numbers leave out, with each release.
Questions, answered plainly.
Does it work without internet?
Yes. Recognition and translation run on your Mac. The first time you use a language, macOS downloads its model, and that single step needs a connection.
Can the other people in the meeting see Ieum?
No. The captions are a window on your own screen. Nothing is added to your video call, and the call software does not know it is there.
Can it caption a video call, not just a microphone?
Yes. Choose system audio and Ieum captions what the Mac is playing. macOS will ask for Screen & System Audio Recording permission the first time.
Which languages does it support?
English (US and Australian) and Korean, in both directions. The command-line version can transcribe more languages that macOS supports on-device.
What do I need?
An Apple silicon Mac. Captions work on macOS 14 or later. The faster recognizer, conversation mode and translation need macOS 26.4 or later.
Will it get my company's names right?
Add them to the vocabulary list before the meeting. Ieum corrects them in the transcript before translating. Apple's recognizer does not take hints directly, so this correction is done afterwards.
What does Ieum mean?
이음 means "to connect". A join between two sides that were apart.
Join the conversation.
Ieum for Mac is on its way.