ThinkOS
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ThinkOS Public Beta

ThinkOS 0.0.356

This macOS alpha release adds inline HTML artifacts, easier Sphere navigation and sharing, clearer attachments and progress, and more reliable message delivery and 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

  • View and expand HTML artifacts directly in conversations, see their latest revision, and save copies to a Sphere.
  • Keep artifact app data encrypted and synced with its Sphere, with updates reflected on desktop.
  • Share child Spheres in place while preserving their position under the parent.

Desktop

  • Find Spheres with a searchable sidebar switcher and a pinned Create Sphere action.
  • Place attachments inline with your message text; deleting an attachment token removes its attachment.
  • See the complete active progress trail and clearer tool activity and durations.
  • Read clearer menus and labels, scroll notifications without closing the popover, and access feedback without leaving your workspace.

Companion Sync

  • More reliably promote queued companion messages and preserve their context through recovery.
  • Keep follow-up instructions tied to the intended active turn, with more reliable cancellation and delivery outcomes.
  • See failed manual sync and remote delivery errors more clearly.

Reliability

  • Keep shared Spheres and nested conversations available through sync, reconnection, and backup recovery.
  • Preserve drafts and message delivery status when switching conversations or recovering interrupted work.
  • Resume pending navigation after startup and prevent older synced state from replacing newer changes.
  • Keep agent recall within the authorized work scope and show that scope in the conversation.

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