iOS notifications icons

On iOS, notifications use your app’s main icon by default. Customizing the icon specifically for notifications is not possible without altering the app icon itself. This means iOS notifications will always display the app’s primary branding image, ensuring consistency across the system.

Android notification icons

Android handles notification icons differently. For optimal display, Android devices require notification icons that adhere to the following criteria:

• The icon must be monochromatic (using a single color).
• It must have a transparent background.

These icons are integrated into the app’s native code, and it's crucial to follow these guidelines to ensure proper rendering across different Android devices.