Disclosed are a method for dynamically modifying an application startup icon, a message sending method, a terminal and a server, wherein, the method for dynamically modifying an application startup icon includes: a terminal obtaining a command from a server, parsing the command to obtain an application package name, a new icon path and a text description on the new icon; the terminal creating a new icon according to the new icon path and the text description; the terminal using the new icon to create a startup icon of the application corresponding to the application package name on a home screen; and the terminal achieving a function of regularly flipping a tile by alternately replacing the startup icon.
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