ThinkOS
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ThinkOS Public Beta

ThinkOS 0.0.351

This macOS alpha release adds inline HTML artifacts and searchable Sphere switching, polishes desktop notifications, and improves shared conversation and Companion delivery reliability.

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

  • View HTML artifacts directly in conversations, expand them, and save copies to a Sphere while retaining their styling.
  • Artifact app data is encrypted, syncs with its Sphere, and updates immediately on desktop.
  • Find and switch Spheres with a searchable sidebar picker.

Desktop

  • Manage Sphere settings inline, with sharing actions separated from sync controls.
  • Browse clearer notifications in a popover that stays open while scrolling, with a Dismiss all action.
  • Menus stay within the window, and active agent progress remains visible above the composer.

Companion Sync

  • Queued prompts can move into active work more reliably while preserving their context and intended conversation.
  • Delivery failures and cancellations remain visible through recovery, and failed manual syncs report an error.

Reliability

  • Shared conversations reopen more reliably, and startup navigation resumes once account data is ready.
  • Space drafts stay with their session, and newer conversation state is protected from stale updates.
  • Agent work scope is visible, with recalled context restricted to authorized sources.

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