WeVividWeVividGenerate all the iPhone and iPad app icon sizes, including the 1024 px App Store icon, from one image.
iOS: the 1024 px App Store icon is always filled white because Apple doesn't allow transparency, and iOS rounds the corners itself. Android: you get the legacy launcher icons for each density plus the 512 px Play Store icon. For adaptive icons, add foreground and background layers in Android Studio.
The App Store icon must have no transparency; this tool fills it white automatically.
No. iOS rounds them itself.
No. Everything is worked out in your browser and nothing you type is sent to a server.