Developer Options are not a standalone file or application that you download; instead, they are a set of hidden system settings built into modern operating systems like , iOS , and Windows . To "download" or access them, you must perform a specific series of actions within your device's native settings menu to unlock and display these advanced features. How to Unlock Developer Options on Android
On Android, Developer Options are hidden by default to prevent accidental changes to sensitive system behaviors. You do not need to download an APK; the menu is already there. Enabling Developer Mode on a device download developer options