During editing, a picture icon lets you compare your work to its previous edit state, and in the menu interface, you can simply hold a finger against the screen to see the original, to which you can revert at any time. In the unlikely event that you do get confused, a question mark is always displaying in the upper-right hand corner touching it overlays helpful hand-drawn instructions showing where to tap or swipe to perform a function. Once you learn that swiping up and down selects the effect, and right to left adjusts its strength, you've pretty much got the interface down. Read our editorial mission (Opens in a new window) & see how we test (Opens in a new window). Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. Back and forward arrows at the bottom corners take you through a workflow process from editing to sharing. Simple swiping gestures let you adjust contrast, brightness, and color, or you can have the program choose those automatically or choose control points in the image.

After you open or shoot a photo, you'll see rectangles along the bottom of the screen (or along the side if you're in landscape orientation), which you can swipe through to choose edits, adjustments, and effects. Snapseed's interface is simple and clear, yet punches a lot of powerful and detailed capabilities. Thanks to Nik being sold to Google last fall, the app is now free. Nik's years of image-editing prowess shine in Snapseed and the app's interface takes good advantage of the iPhone's touch screen. The company's Snapseed can not only add zest or interest to images shot with your iPhone, iPad, or iPod touch camera, but also share it on Flickr, Facebook, or Twitter. Nik Software is a more venerable maker of photo enhancement software, having developed pro-level effects for Photoshop for years. Instagram is far from the only app in the iOS photo-fun game.

More complicated interface than Instagram.

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Snapseed free