The phrase identifies software applications designed to replicate the iOS environment on non-iOS operating systems, such as Windows, macOS, or Linux. These applications allow users to run iOS-specific applications and games on their computers. A practical example would be utilizing such a tool to test an iOS application without requiring a physical Apple device.
The significance of these applications stems from several key benefits. They provide developers with accessible testing platforms, circumventing the necessity of owning multiple iOS devices for compatibility assessments. Furthermore, they enable users to experience iOS applications on larger screens and with potentially more robust hardware. Historically, the need for these tools arose from the closed nature of the iOS ecosystem and the desire for cross-platform application accessibility.