License

The code: GPL-3.0-or-later

MetaProc is built on the R meta-analysis ecosystem (metafor, netmeta, meta, robvis, esc), which is copyleft (GPL). MetaProc itself is therefore licensed GPL-3.0-or-later. In plain language:

• You are free to use, study, modify, and share the code.
• If you distribute MetaProc (or a modified version), you must pass on the same freedoms and make the corresponding source available under the GPL.
• Any desktop installer we ship is "conveyance" under the GPL, so each release ships with a matching public source tag (GPLv3 §6, Corresponding Source).
• Using the hosted web app is not distribution (running software over a network is not "conveyance" under GPLv3), so simply using the hosted app at studio.metaproc.app does not itself trigger source-distribution obligations.

The full text is the standard GNU General Public License v3. The source code will be published on GitHub with the first tagged release (alongside LICENSING.md and NOTICE with the per-dependency detail).

The name: a trademark carve-out

"MetaProc" (the name and wordmark) is a trademark, not part of the GPL grant. The GPL covers the code; it does not give permission to use the name to brand your own builds. In practice:

• You may fork and redistribute the code under the GPL.
• Please do not call your fork "MetaProc" or use the MetaProc wordmark in a way that implies it is the official project. Rename your distribution instead.

This is a common, GPL-compatible arrangement (the code stays free; the name stays unambiguous). Questions: [email protected].