LLT Mobile icon
📱 iOS 17+ · iPhone & iPad · v1.4

Translate, dictate, output almost anywhere — in your pocket.

Most translation apps do one thing. LLT Mobile is the whole pocket pipeline — and the free companion to LLT Desktop. Pair it with your own Mac (running LLT Backend) and your iPhone becomes a wireless mic that can even remote-start LLT in Translate or Dictate mode — made for the reporter on the move. No Wi-Fi in the field? Four direct cloud engines are a one-time purchase away. Dictate into any Mac app, save notes to iCloud, read or share transcripts in the built-in TXT/SRT viewer, and push live subtitles to OBS, VRChat and vMix in your own overlay design. GDPR-friendly, no subscriptions, one system.

iOS 17+ · iPhone & iPad Free Companion to LLT Desktop Wireless Mic for your Mac Remote-start LLT OBS · VRChat · vMix Title Own Overlay Design 5 Engines · Cloud in Pro 40+ Languages TXT + SRT GDPR · No Subscriptions
Download on theApp Store LLT Desktop →
LLT Mobile — main translation screen LLT Mobile — translation screen, alternate view LLT Mobile — OBS browser-source overlay settings with copy URL LLT Mobile — customizable overlay colour, opacity and border LLT Mobile — vMix Title Output settings
40+
Languages
5
Engines
0
Subscriptions
$0
With LLT Backend
Capabilities

Everything the Desktop does, in your pocket.

🎤

Live STT

Speech-to-text in 40+ languages. Automatic punctuation, smart pause detection, VAD chunking.

🌐

Translation

Instant translation between any source and target language. Pick your engine, pick your pair.

🎨

Customizable Overlay

Background, text colour, opacity, border — fully styled. The same look is applied to the OBS browser-source overlay over Wi-Fi.

📺

Live Outputs

Subtitles to OBS (browser source), VRChat (OSC chatbox) and vMix titles — all over local Wi-Fi, simultaneously.

🔊

Speak back

On-device iOS speech synthesis reads the translation aloud — intended for headphones to avoid feedback.

New in v1.4

Your iPhone, now a wireless mic and dictation tool for the Mac.

v1.4 turns LLT Mobile into a remote for LLT Desktop — stream your iPhone mic to the Mac, dictate anywhere, sync everything to iCloud, and read your transcripts right in the app.

📲

Wireless mic for the Mac

Use your iPhone as a wireless microphone for LLT Desktop. Stream mic audio to your Mac over Wi-Fi and remote-start it in Translate or Dictate mode — a reliable Continuity replacement.

⌨️

Dictation mode

Dictate speech straight into the focused app on your Mac via the companion, or save it on your iPhone as a note — original, translation, or both.

☁️

iCloud sync

Transcripts and dictation notes sync to iCloud Drive (the “LLT Mobile” folder) and appear on your Mac automatically.

📄

Built-in viewer

Read saved TXT and SRT files right in the app — tap to read, multi-select to share or delete.

How it works

Speak → Transcribe → Translate → Outputs.

Audio stays on your device, streams to your chosen engine (your Mac or a cloud provider you authorized), and comes back as text, speech, and live subtitles to OBS, VRChat or vMix — all in real time.

01

Capture

iOS microphone · VAD chunking · background-audio aware

02

Transcribe

Whisper (local via your Mac) · Deepgram · OpenAI · Google · Azure

03

Translate

Mistral on your Mac, or engine-native translation for Google / Azure

04

Display & outputs

Customizable on-screen overlay · OBS browser source · VRChat (OSC) chatbox · vMix title push · optional TTS

Free & Pro

Free with your Mac. Pro if you want cloud engines.

LLT Backend mode — talking to your own Mac running LLT Desktop — is always free. One in-app purchase unlocks the four direct cloud engines for when you don't have your Mac with you.

Base — always free

LLT Mobile

Free
No account, no subscription
  • LLT Backend engine — talks to your own Mac over local Wi-Fi
  • All 40+ languages
  • Live outputs — OBS browser source, VRChat (OSC) chatbox, vMix titles
  • Customizable overlay — background, text colour, opacity, border
  • Transcript saving (TXT + SRT)
  • Text-to-speech playback
  • Original-text toggle · background audio · universal iPhone/iPad
Requires LLT Desktop on your Mac. Audio stays on your local network — GDPR-compliant by design.
Pro — one-time unlock

LLT Mobile Pro

US $12.99
or local equivalent (€14.99 / £12.99)
  • Everything in the free tier, plus:
  • OpenAI Whisper API — highest transcription quality
  • Deepgram — fastest real-time streaming
  • Google Cloud Speech — 125+ languages, built-in translation
  • Azure Speech — enterprise-grade, built-in translation
  • Use your own API keys — you pay the provider directly
One-time in-app purchase via Apple. No subscription, no hidden costs. Restore Purchases from any device signed into the same Apple ID.
Engines

Five ways to turn speech into text.

Pick LLT Backend for a fully private local pipeline. Pick any cloud engine when you need to work without your Mac. Your API key, your provider, your data — never routed through Adelvo.

Engine Runs on Strength Tier
LLT Backend Your own Mac (local Wi-Fi) Fully local · Whisper + Mistral · GDPR-compliant FREE
OpenAI Whisper OpenAI servers Highest transcription quality PRO
Deepgram Deepgram servers Fastest real-time streaming PRO
Google Cloud Speech Google servers 125+ languages · built-in translation PRO
Azure Speech Microsoft servers Enterprise-grade · built-in translation · low latency PRO

🔒 Local mode = zero cloud

When you run LLT Backend on your own Mac, audio never leaves your Wi-Fi network. Perfect for schools, hospitals, law firms, government agencies, broadcasters, and anyone with strict data protection requirements. For the full data-flow breakdown, see the LLT Mobile privacy policy.

Screens

v1.4 — wireless mic, dictation, iCloud sync and the built-in transcript viewer.

New in v1.4: dictate to any Mac app or to iCloud notes and read TXT/SRT files in the built-in viewer. Plus the v1.3 live outputs — OBS, VRChat, vMix — the customisable overlay, transcripts, free and Pro screens, and iPad layouts.

LLT Mobile — main translation screen
Translate
LLT Mobile — translation screen, alternate view
Translate (alt)
LLT Mobile — OBS browser-source overlay settings: Enable Server, Port 8077, copy URL
OBS overlay setup
LLT Mobile — overlay appearance settings: background, text, OBS opacity, border colour
Custom overlay
LLT Mobile — vMix Title Output settings: host, port, input, field
vMix setup
LLT Mobile — VRChat OSC settings: host, port 9000, what to send, send test message
VRChat (OSC) settings
LLT Mobile — translation with vMix title output active
vMix active
LLT Mobile — free tier with Pro unlock option
Free tier
LLT Mobile — Pro active with restore purchases
Pro active
LLT Mobile — transcripts list with share sheet
Transcripts
LLT Mobile — transcripts with multi-select to share or delete
Cleanup
LLT Mobile — built-in viewer reading a saved transcript with timestamps
Transcript viewer
LLT Mobile — Output & Dictation settings: note content, format, iCloud sync
Dictation settings
LLT Mobile on iPad — settings layout
iPad — settings
LLT Mobile on iPad — overlay colour settings
iPad — colours
Live outputs

Send subtitles to OBS, VRChat & vMix — over local Wi-Fi.

Your iPhone or iPad becomes the translation appliance for streaming, gaming and broadcast. Three live outputs, all over local Wi-Fi, all matching the same customisable overlay style you set in the app.

📡

OBS Browser Source

LLT Mobile hosts a transparent subtitle page on your local Wi-Fi. In OBS on your PC or Mac, add a Browser source pointing to the shown URL — translations appear live in your stream with the same overlay styling you set in the app. Works with any browser-source-capable software (Streamlabs, XSplit, vMix).

🎮

VRChat (OSC)

Send subtitles straight into the VRChat chatbox over OSC, like Kikitan. Pick whether to send the original, the translation, or both. Test button and optional notification sound. Ideal for streamers and gamers who want live captions in-world.

🎬

vMix Title Output

Send captions to vMix title inputs over local Wi-Fi. Pick which text field receives the caption, multi-language title rotation for multilingual productions. Works alongside the full LLT Desktop vMix integration.

Pricing

One purchase. No subscription.

LLT Mobile Pro — unlock all cloud engines

$12.99
United States
€14.99
Eurozone
£12.99
United Kingdom

One-time in-app purchase, not a subscription. Local pricing varies — set by Apple (Tier 13); see the App Store for your exact region. Free with LLT Desktop backend in local mode.

Requirements

What you need.

📱

iOS device

iOS 17.0 or later · iPhone or iPad · universal app optimized for both

📶

Network

Wi-Fi for LLT Backend or cloud engines · local-only LAN is fine for backend mode

🖥️

For free mode

A Mac (Apple Silicon or any machine with NVIDIA GPU) running LLT Desktop. For Pro, just your own cloud API key.

Family

Part of the Adelvo toolbox.

LLT Mobile belongs to the LLT family alongside LLT Desktop. The other Adelvo tools live next door.

LLT Desktop for Mac

The main app. On-device LLM translation with Whisper + Mistral on Apple Silicon. Runs the backend Mobile connects to.

Directors Plan

Professional rundown & control software for vMix live productions. Windows + macOS.

MDE — Mix Desk EQ

Professional audio routing for macOS — apps, mic, webcam, and line-in to multiple outputs.

Volume Balance

Audio compressor for browser tabs — fixes volume differences on social media and video pages.

Real-time translation in your pocket — now in OBS, VRChat & vMix.

Free with your Mac. Cloud engines one IAP away. No subscription.

Download on theApp Store Get LLT Desktop (free backend)