ThinkOS
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ThinkOS Public Beta

ThinkOS 0.0.255

This macOS alpha release brings clearer Sphere navigation, shared work controls, an integrated browser, improved voice conversations, and more reliable collaboration and companion sync.

Download for macOS — Apple silicon

Downloads

iPhone and iPad through TestFlight

  • ThinkOS has completed Apple's TestFlight review and is approved for public testing. We're distributing the iOS app through TestFlight for now because we're making rapid changes and want to deliver fixes and improvements quickly before the full App Store release.
  • Install Apple's free TestFlight app on your iPhone or iPad if you do not already have it, then open the ThinkOS public TestFlight link on that device and tap Accept or Install.
  • New ThinkOS builds appear in TestFlight as they are released. You can update manually or enable automatic updates in TestFlight. Expect frequent changes, occasional rough edges, and features that may move while the early release develops.
  • TestFlight builds are available for up to 90 days. We plan to keep a current build available, but if a build expires, return to TestFlight for the newest one.
  • Feedback is part of this early release: send notes from TestFlight, including screenshot feedback when useful, so we can reproduce issues and improve the next build.

Highlights

  • Navigate nested Spheres and threads from the Home rail, and track to-dos and message FYIs in Feed.
  • Manage shared Sphere members, collaborate inline, and preview encrypted artifacts.
  • Your primary assistant is now called Chief Think Agent.

Desktop

  • Browse beside a conversation with multiple tabs, a separate browser window, and page annotations you can share in chat.
  • Dictate prompts and use live voice with restored transcripts and words paced to reply audio.
  • Queue follow-up messages or steer an active reply, with saved model choices restored after restart.

Companion Sync

  • Receive paired conversation messages and activity updates faster and more reliably.
  • Pairing codes stay available as devices connect, and paired device removal controls are restored.

Reliability

  • Shared Sphere invitations and member changes recover more reliably after interrupted delivery or reconnects.
  • Review conflicting shared changes while preserving your draft.
  • Conversations better preserve scroll position and navigation context as background updates arrive.

Updating