Addness
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Take Addness beyond the browser.

The Addness desktop app is the Addness you already use, in an app. Launch instantly with a global shortcut, get OS notifications, turn speech into text in any app, and reach LINE and Messenger through your own computer.

Download for Mac (Apple Silicon)Download for Windows
Addness
Voice inputListens while you hold the key
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What it does

Desktop-native

Launch instantly with a global shortcut and get OS notifications. Mentions, replies, and assignments arrive even with no browser tab open.

Voice input in any app

Hold a key and talk. It works inside Addness and in any other app's text field. On Mac, transcription runs on your machine. On Windows, audio is sent through Addness servers to a transcription service (Groq). Addness servers do not store the audio or the transcript.

LINE and Messenger through your own computer

Connect your personal LINE and Facebook Messenger, and AI can read and send messages through the Addness MCP. The connections and history stay on your machine, never copied to the cloud. Messenger works on Apple Silicon Macs and Windows (x64, version 0.2.73 or later). Neither LINE nor Messenger works on Intel Macs.

How to connect

Reading and writing Addness from an AI happens over MCP, from the AI you already use such as Claude Code or Codex. The desktop app is not required for that.

See the features

Getting started

  1. 1Download the app and open itJust open the downloaded app. Auto-updates are supported.
  2. 2Log in with AddnessSign in with your Addness account on first launch. It connects to your organization's goals, todos, and team.
  3. 3Pick your voice keyChoose the key you hold to talk, from Settings. You will be asked for microphone and input permissions the first time.

Requirements

  • macOS (Apple Silicon / Intel) or Windows 10 22H2 / Windows 11 (x64)
  • An Addness account (organization login)
  • The unsigned Windows build may trigger SmartScreen, and some company PCs may block it
  • Voice input on Mac requires macOS 26 or later with Apple Intelligence available (transcribed on device). On Windows, voice input is a trial from version 0.2.71 (Japanese only; audio is sent through Addness servers to a transcription service)
  • Personal Messenger works on Apple Silicon Macs from version 0.2.69 and on Windows (x64) from version 0.2.73
  • The Intel Mac build does not support LINE or Messenger. Voice input support on the Intel build has not been confirmed

Put Addness where you work

Download for Mac (Apple Silicon)Download for Windows
Questions? Ask our staff on the live stream (in Japanese)