The method for terminating applications running on iOS devices involves a specific gesture or sequence, differing slightly based on the device model (e.g., those with a Home button versus those without). For devices with a Home button, rapidly pressing the button twice reveals the app switcher, allowing users to swipe up on app previews to force-quit them. For devices without a Home button, swiping up from the bottom edge of the screen and pausing in the middle invokes the app switcher, again enabling the swipe-up-to-close functionality. This process effectively shuts down the application and removes it from the device’s active memory.
The practice of application termination is often employed to resolve issues like application unresponsiveness, unexpected battery drain, or to ensure that sensitive data is not retained in the background. Historically, manually closing applications was thought to improve device performance, but modern iOS systems are designed to manage background processes efficiently. The operating system will automatically suspend inactive applications, minimizing their impact on battery life and system resources. Nevertheless, force-quitting remains a useful troubleshooting technique.