Crystl: AI Agent Control

conduct an orchestra of agents

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

crystl for iPhone is the companion to crystl for Mac, the desktop app that runs your AI coding agents (Claude Code, Codex) in a terminal — each in its own git worktree on its own branch, so many run in parallel with no conflicts and no waiting. Keep the whole fleet working at once and get a notification the moment any agent needs an approval or has a question, then reply, approve, or answer from your pocket without heading back to your desk. Pair to your Mac in seconds by scanning a QR code, then take the controls: • NOTIFICATIONS: get pinged the moment an agent needs an approval, raises a question, or finishes — so you can run many agents at once and only step in when one needs you. • APPROVALS: when an agent asks to run a tool, approve or deny it — allow once, allow always, or deny. • QUESTIONS: answer the questions your agent raises, with its suggested options one tap away. • SEND: type into any session, reply to your agent, and drive a TUI with a terminal key row (enter / esc / ctrl-c / arrows / tab). • VOICE: dictate to your agent instead of typing — talk it through the next step hands-free. • PHOTO: send an image straight from your camera or library — a screenshot, a whiteboard sketch, a design to build from. • QUEST: chat with and steer a multi-agent party from one screen when several agents work together. • MERGE: when an isolated agent's work is done, merge its branch back into main with one tap — no need to open your Mac. • LIVE SCREEN: watch the real terminal output of any session on a clean monospaced canvas. • TRANSCRIPT: read the conversation as structured turns — your prompts, the agent's replies, tool calls, and their results. crystl for iPhone pairs with the Mac app — you'll need crystl running on a Mac on your local network to connect. It's a supervisor's remote control, not a standalone coding tool. Free to use, with nothing to buy in the app. Connect to your own Mac over your local network and every feature works at no cost. Requires the free crystl desktop app for Mac, available at crystl.dev.

Ratings & Reviews

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New Settings screen: choose whether shards open on chat or terminal, and hide the quest tab if you don't use it. Conversations now open at the latest message. Merge actions show the branch they will merge into. Pairing screen polish, plus a link to get crystl for your Mac.

Version 1.0.2

The developer, Christopher Bolton, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Christopher Bolton
Size
  • 4.1 MB
Category
  • Developer Tools
Compatibility
Requires iOS 16.1 or later.
  • iPhone
    Requires iOS 16.1 or later.
  • Mac
    Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Christopher Bolton
  • Developer Website
  • Privacy Policy

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