Unverified50% confidenceFactExact time
When a user attempts to run multiple instances of the same application, macOS detects the identical Bundle ID and refuses to launch a second instance.
1
Sources
50%
Confidence
Long-term
Relevance
8/4/2026
First Seen
Sources
MacDupl：一键克隆Mac应用，实现多账号同时在线
Related Claims
UnverifiedIn macOS, each application identifies itself through a unique Bundle ID, which the system uses to manage preferences, data sandboxes, Keychain access permissions, and push notifications.77% similarUnverifiedKun supports both Windows and macOS systems and provides out-of-the-box installation packages.64% similar
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