Just as you do in Photoshop on the computer, you need to trace the area you want to extract with the highlight tool present in the app and tap the delete button. Best Background Eraser App for Android and iOS And yes, you can export images as transparent png. We notice these Android apps work best when the images had a monochrome background like black or red and with good contrast between the foreground and background. Though, you should not expect Photoshop-like results from these Android apps like cutting out fine hair or tea leaves.
