How to watch a Korean livestream in Chinese

Most Korean livestreams have no Chinese subtitles, and fan translations arrive hours later. Echo captions the stream into 繁體中文 or 简体中文 while it is still running, on your iPhone, with the original Korean shown alongside.

Set it up once

  1. 1

    Choose Audio mode

    Audio mode captures the audio of another app through iOS Screen Broadcast — the right mode for a live playing on the same phone.

  2. 2

    Set Korean → 繁體中文 or 简体中文

    Echo keeps Traditional and Simplified separate, so you get the script you actually read rather than a converted approximation.

  3. 3

    Enable the floating overlay

    The picture-in-picture caption window stays above Weverse, YouTube or Bubble while the stream plays full screen.

Traditional and Simplified are not the same setting

Echo treats 繁體中文 and 简体中文 as separate targets rather than converting one into the other after the fact. Choose the one you read; you can change it between streams without restarting the broadcast.

Idol and group names stay intact

Generic translators re-romanise Korean names on the fly, which is how a group name turns into something unrecognisable mid-sentence. Echo pins roughly 770 K-pop terms — official idol names, group names and fandom vocabulary — so they survive the trip into Chinese.

What it costs

The free tier gives 5 minutes of translation a day with no account. A full live usually needs more: Echo Plus starts at a weekly plan with a 3-day free trial, and a one-time Day Pass gives 90 minutes valid for 24 hours with no subscription and no auto-renew. Prices are set per territory, so the App Store shows your local amount before you buy.

Also useful off-stream

  • Screen mode for Bubble messages, fan-cafe posts and Weverse comments.
  • Around Me for concerts, fan meetings and travel in Korea.
  • Local translation history you can scroll back through after the live, and delete in one tap.