The great thing about taking pictures these days is that we no longer have to worry about running out of film. Despite this freedom, often times a photo that could have been almost perfect is ruined by some background item we didn't notice while taking the shot or even worse, a photo bomber. It can also be something as benign as the reflection off of the glass you had to shoot through and couldn't avoid while taking that epic shot. For any and all of the reasons that you can't go back to recapture the shot, I highly recommend downloading the Snapseed app. It's loaded with dozens of amazing tools to help you improve your images, but my absolute fav is the tool known as 'Healing'. It lets you take out just about anything in the background of your photos without having to use your computer and fancy software. You just pinch-zoom to the area of the obstruction then use your finger to erase the unsightly item into the surrounding background colors. The best part is that you can give it multiple tries before saving to get the image just right. Get started at: https://snapseed.online