Private Mac beta

Think naturally.
Make it useful.

CoThinker turns your voice and rough ideas into clear writing wherever you’re working.

Download CoThinker for Mac

Free beta · macOS 14.2 or later · Universal Apple Silicon + Intel build. Intel launch verification pending.

If macOS blocks CoThinker on first launch: try opening it once, then go to System Settings → Privacy & Security → Open Anyway.

CoThinker app icon

Your thinking partner,
ready when you are.

01

Quick Voice

Hold Control and speak naturally. CoThinker transcribes locally and returns your words where you were working.

02

Enhance

Turn a rough request into a clearer, stronger prompt without leaving your flow.

03

Scribe

Use Control + 1 to speak an edit or compose a useful first draft from your intent.

Start in minutes

A small setup. A real first win.

Install CoThinker, create a beta account, then try it safely in a built-in field. Permission requests explain exactly what they enable and only appear when the feature needs them.

  1. InstallOpen the downloaded DMG and move CoThinker to Applications.
  2. Choose your first winSpeak, improve an AI request, or rewrite faster.
  3. Use it anywhereGrant macOS access when you’re ready to use global shortcuts.

Built for a private beta

Your work stays yours.

Transcripts and history stay on your Mac. When you use CoThinker Cloud, your requested AI transformation is processed by CoThinker’s protected service; bringing your own Gemini key is optional and stays in your macOS Keychain.

Some desktop AI editors use a safe Copy fallback instead of direct insertion. Send feedback from the app—we’re actively improving the beta.

Ready to think out loud?

Download for Mac