Licences

Free software, all the way down.

Parlor is licensed under the GNU General Public License v3. Every emulation core it ships is an established open source project, vendored at a pinned version and credited in the app under Settings → Acknowledgements.

Source code

Parlor includes components under the GNU GPL v3. If you received Parlor and want the corresponding source for those components, ask through the support page and we will send it to you.

Components

ComponentUsed forLicense
SameBoyGame Boy / Game Boy Color coreExpat (MIT)
mGBAGame Boy Advance coreMPL-2.0
melonDSNintendo DS coreGPL-3.0
GRDB.swiftLibrary databaseMIT
ZIPFoundationZip importMIT
7-Zip C SDK7z import (decode-only subset)Public domain
Swift AtomicsLock-free primitivesApache-2.0
Libbet and the Magic FloorBundled homebrew demozlib

What Parlor does not include

Accuracy

The Game Boy core is verified in Parlor's own test suite against dmg-acid2, cgb-acid2, mooneye and Blargg's test ROMs; golden framebuffer hashes are re-recorded only on a deliberate core bump, so a regression in rendering fails the build.