DisplayCAL vs QUBYX PerfectLum

DisplayCAL is a free display calibration and profiling solution built on ArgyllCMS, available for Linux, macOS, and Windows. With a supported measurement instrument, it measures displays and creates calibrations and ICC profiles, including for multi-display setups. Users can verify profiles and display devices, measure screen uniformity, and create video 3D LUTs with optional CIECAM02 gamut mapping. Colorimeter corrections can be imported from vendor software or created from measurements when a spectrometer is available. A test chart editor makes patch charts and accepts pasted data from CGATS, tab-delimited CSV, and spreadsheet applications. Documented pattern generators include madVR and DaVinci Resolve 10.1 or later; Chromecast support is optional. DisplayCAL requires ArgyllCMS 1.0 or newer and a supported measurement instrument. The software is licensed under GNU GPL version 3 or later and comes without warranty. The download page provides SHA-256 checksums, while the site links to forums, a wiki, documentation, help, and an issue tracker.

QUBYX PerfectLum calibrates, verifies and runs quality assurance for medical displays, including DICOM GSDF calibration. It automates acceptance, constancy and routine QA tests with configurable pass/fail thresholds, scheduled daily, weekly, monthly or at custom intervals. Tests produce structured PDF reports with calibration and compliance results, luminance, contrast, ambient data and history. PerfectLum supports LUT calibration, ICC profile export and multi-monitor calibration for up to six displays. It works with QUBYX SmartSensor S1 and S2 and supported third-party measurement devices, and can connect to QUBYX RemoteQA for fleet monitoring, scheduled QA, failure tracking and centralized compliance reporting. Its workflows align with DICOM Part 14 GSDF, AAPM TG-18/TG-270, ACR, DIN 6868-157 and IEC 62563. QUBYX lists installers for Windows 10/11 x64 and macOS 12 or later on Intel and Apple processors. A free trial is available by email download link, with no duration stated. A workstation license costs $480 as a one-time purchase; a package with SmartSensor S2 costs $680, paid once.