Use gestures to reduce or enlarge the view of your photos

The standard two-finger swipe and pinch gesture can be used to reduce or enlarge the size of image thumbnails in the grid view in iOS, as well allowing you to zoom in when viewing a single image in either iOS or Android. To hide the user interface to view only the photo, tap once on the screen; then tap again to show the controls. You can also double-tap on an image to view it full size, and then double-tap again to fit the entire photo on the screen.

Display a before and after view of the photo

After you’ve applied some edits to an image, press and hold on the screen to view the photo with no edits, then release to display the image with the current edits applied.

View information overlays in iOS

On iOS, use two fingers to tap the screen in the grid view to cycle through several information overlays, such as the file type, the flags and ratings, the basic photo info, as well as the camera EXIF data. This same shortcut works in iOS to display different information overlays when viewing a single image.

Apply flags and ratings with a gesture

When viewing a single image, tap the screen to hide the controls, then swipe vertically on the left side of the screen to add star ratings, and swipe vertically on the right side of the screen to apply flags. Then swipe left or right to go to the next photo and repeat the process.