Support

Native macOS CAD for single crowns, inlays and onlays, and conventional, Maryland and cantilever bridges. No account, no cloud, no tracking.

Contact

Email: support@maccrown.org

Privacy questions: privacy@maccrown.org

Evaluation invites and product feedback: feedback@maccrown.org

We typically respond within one business day.

Quick start

1. Install MacCrown. MacCrown is in an invite-only evaluation; it will then be released on the Mac App Store and as a direct download from maccrown.org.
2. Open the app. There is no account to create and no sign-in. The app works fully offline.
3. Import a scan. File → Import. STL, PLY or OBJ from any intraoral or lab scanner.
4. Follow the workflow: Margin → Insertion axis → Cement gap → Design → Adjust → Validate → Export.
5. Export the restoration as a watertight STL or 3MF file, with a construction-info file for your lab.

Automation: command line and MCP server

MacCrown exposes its fixed-restoration workflow as structured tools for automation. Both channels run the same geometry engine and the same validation checks as the app, and both are local only: no network ports, no cloud.

Command-line interface

A headless command-line tool drives whole cases per invocation (import → design → validate → export) for scripted, repeatable workflows. Start with the built-in guide:

/Applications/MacCrown.app/Contents/MacOS/MacCrown cli guide

MCP server

MacCrown includes an MCP (Model Context Protocol) server that lets agent tools you already use, such as Claude Code or Codex, drive the app over local stdio. Add this command to your MCP client's server configuration:

/Applications/MacCrown.app/Contents/MacOS/MacCrown --mcp-stdio

See Privacy § 4 for what the automation surface can and cannot do with your data. Every automated design passes the same validation checks, and you review the result before export.

Troubleshooting

Scan import fails

MacCrown accepts STL (binary or ASCII), PLY and OBJ. If your scanner saves a proprietary format, export to STL first. Very large scans (over about 2 million triangles) can take a while to import; this is one-time work, and later steps are fast.

The margin needs correcting

Any proposed margin is a starting point, not a finished margin: reviewing and correcting the margin line is a required step in the workflow. The edit tools (Magnetic, Freehand, Move, Add, Delete, Smooth) refine any part of the line, and the Verify Margin bubble view checks every point against the preparation in cross-section.

Validation flags wall thickness or contacts

Material-specific limits drive the validation checks. When a check fails, the on-screen heatmap shows where. Adjust the design parameters (for example occlusal reduction or axial wall thickness) and regenerate, or sculpt the area directly.

The app quits unexpectedly

MacCrown is built for Apple silicon Macs running macOS 27 or later. If it quits unexpectedly:

• Check that you are on macOS 27 or later (Apple menu → About This Mac).
• Check that your Mac has Apple silicon (M1 or later). MacCrown does not support Intel Macs.
• Send the crash report (~/Library/Logs/DiagnosticReports/MacCrown_*.ips) to support@maccrown.org.

System requirements

• A Mac with Apple silicon (M1 or later). Intel Macs and Rosetta are not supported.
• macOS 27 or later.
• 16 GB of memory minimum; an M5 Pro or M5 Max with 48 GB or more is recommended.

Pricing

Pricing will be announced at release. Evaluation copies are invite-only.

Refunds

Refunds for Mac App Store purchases are handled by Apple under the App Store refund policy.