How do I delete photos from P.E. on an android phone, I notice you have made it easy for iPhone but no mention about Android phones
If you're referring to the Photoshop Express app on your Android phone, The Photos that you modify in Photoshop Express are saved onto your device. You can go to your 'Photos' app and delete the new modified photo in 'Camera roll'
Hope that helps.
Moved to Photoshop Express.