In one sentence, describe what the following article is about:

Open your iPhone's {"smallUrl":"https:\/\/www.wikihow.com\/images\/5\/55\/Iphoneappstoreicon.png","bigUrl":"\/images\/thumb\/5\/55\/Iphoneappstoreicon.png\/30px-Iphoneappstoreicon.png","smallWidth":460,"smallHeight":460,"bigWidth":"30","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an iOS icon.\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"} App Store, then do the following:  Tap Search  Tap the search bar. Type grabit - tag and view into the search bar. Tap Search  Tap GET to the right of the "GrabIt" app. Enter your Apple ID or Touch ID when prompted. Tap OPEN next to the app's icon in the App Store, or tap the InstaGet app icon on your iPhone's Home Screen. Enter your Instagram username and password, then tap Login to do so. It's in the top-left corner of the screen. A menu will appear. You'll find this option in the middle of the menu. It's at the top of the screen. Type in the username of the account from which you want to download a picture, then tap Search. It should be the top result on this page. Doing so opens the user's Instagram page. Scroll through the account page until you find the photo that you want to download. It's a downward-facing arrow below the photo. The arrow will turn blue, signifying that the picture has been downloaded onto your iPhone. You may first have to tap OK two times to allow InstaGet to access your photos.

Summary:
Download the InstaGet app. Open InstaGet. Log into your Instagram account. Tap ☰. Tap Search. Tap the search bar. Enter a username. Tap the user's account. Find the photo that you want to download. Tap the "Download" arrow.