LiveTransX — Real-time Voice Translation That Never Leaves Your Phone

Translate conversations instantly, with zero cloud dependency

LiveTransX is a fully on-device real-time speech translation app for iPhone and Mac. Every word of speech recognition and translation is processed locally on your device — there is no server to upload to, no audio ever leaves your hardware, and the app works completely offline, even on a flight. Your conversations stay 100% private by design: no account to create, no tracking, no analytics SDKs, and no ads.

Built on Apple's on-device AI (iOS 26 SpeechAnalyzer and the Apple Translation framework) and backed by five speech-recognition engines, LiveTransX automatically picks the most accurate engine for the language it hears. It detects the source language automatically, shows live bilingual subtitles as you speak, and supports 30+ source languages and 21 target languages — with the interface itself available in 29 languages.

Why on-device translation matters

Cloud-based translators send your voice to a server and back. That means a network dependency, a privacy trade-off, and noticeable latency. LiveTransX removes all three: recognition runs locally, translation runs locally, and the floating subtitles update in real time without ever waiting on a connection. For international meetings, cross-border video calls, foreign films, travel, or simply learning a new language, you get instant, private, offline translation.

Everything you need to follow any conversation

• Real-time microphone translation with live bilingual subtitles — 实时麦克风翻译，双语实时字幕
• Automatic source language detection — 自动源语言检测
• UI in 29 languages, switchable at runtime — 29 种语言界面，运行时切换
• Screen share translation for video calls, meetings, and videos — 屏幕共享翻译，支持视频通话/会议/视频 Pro
• Audio file translation (mp3/wav) — 音频文件翻译（mp3/wav） Pro
• PiP floating translation window alongside other apps — 悬浮翻译窗口，随用随开 Pro
• Dynamic Island and Live Activity captions on the lock screen — 灵动岛与锁屏实时字幕 Pro
• SRT subtitle export (original, translated, or bilingual) — SRT 字幕导出（原文/译文/双语） Pro

With LiveTransX Pro you unlock screen-share translation for video calls and meetings, audio-file transcription, the floating picture-in-picture window that hovers above any app, Dynamic Island and Live Activity captions on the lock screen, and SRT subtitle export in original, translated, or bilingual form.

Made for real situations

• International meetings and conferences — 国际会议与跨语交流
• Watch foreign-language videos with live subtitles — 看外语视频实时出字幕
• Language learning and listening practice — 语言学习与听力训练
• Cross-border video conferencing — 跨境视频通话
• Travel and conversation translation — 旅行与日常对话翻译

Simple, honest pricing

How it compares

Google Translate: cloud-based with privacy trade-offs. LiveTransX instead runs everything on-device, works offline, and keeps your audio private — with professional features like screen-share translation and subtitle export built in.

Apple Translate: on-device but fewer pro features. LiveTransX instead runs everything on-device, works offline, and keeps your audio private — with professional features like screen-share translation and subtitle export built in.

iTranslate: subscription-heavy and online-first. LiveTransX instead runs everything on-device, works offline, and keeps your audio private — with professional features like screen-share translation and subtitle export built in.

Start translating privately today

Download LiveTransX free from the App Store. No sign-up, no data collection, no internet required — just real-time translation that respects your privacy.

Download LiveTransX