MacOS Swift 5 Runtime Libraries
Older versions of Mac OS require these libraries to run the monitoring app
Last updated: November 6, 2025
Note: ScreenKin currently uses the Truple app for macOS monitoring. While ScreenKin is developing its own dedicated apps, the Truple app provides the underlying technology for Mac devices.
Background
Older versions of Mac OS don't come with the Swift 5 Runtime Libraries installed. The monitoring app for Mac OS depends on these libraries in order to capture screenshots. If you use an older version of Mac OS (older than Catalina) please follow the instructions below to install the Swift 5 Runtime Libraries from Apple.
Instructions
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Download the Swift 5 Runtime Libraries from here. (direct link).
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Open the Download
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Click on the Installer
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Install the Libraries
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Restart your Mac, the monitoring app should now be able to capture screenshots.