Here, Look is a simple iOS app developed by Paul Roub that solves a specific problem: you want to show some photos to your friends but you don't want them to scroll through all your photos in the Camera Roll.
We've all been there. You've just returned from a well-deserved vacation and you've taken many pictures with your iPhone, many of which you want to show to your friends...except those few ones that you like to keep private. Apple's Photos app doesn't have a built-in presentation mode for selected photos, so, unless you want to create a specific album for photos you want to show to your friends every time, you'll be forced to try your luck and hand over your phone with all your photos and the risk that swiping will eventually bring up that awkward selfie that you forgot to delete.
Here, Look lets you create an on-the-fly gallery of selected photos in three easy steps: select photos that you want to show; tap the Here, Look button; and, hand your phone to someone else. The developer says that the app is aimed at eliminating swipe panic, and the description is quite accurate. Once your device in your friends' hands, they can only swipe between the photos you've chosen and they won't have any kind of controls visible on screen. They can rotate and zoom, but they can't keep swiping to see all the photos in your library. When they're done looking at your photos, just take your device, triple-tap the screen, and you'll be back in photo selection mode.
Perhaps you have better friends than mine, and they're never tempted to take a look at your photos when they have a chance. For me, Here, Look provides a simple solution to a common problem that irks me every time I want to show some photos, and it's only $0.99 on the App Store.