Blear is a free iPhone app developed by Sindre Sorhus that allows you to transform your photos into stunning blurry wallpapers. With Blear, you can make your Home or Lock screen shine with beautiful and unique backgrounds.

The app provides a simple and intuitive interface that allows you to easily create blurry wallpapers. By dragging the image horizontally, you can change the crop and achieve the desired level of blurriness. Blear works best with bright and colorful photos, such as a handful of jellybeans or unicorns.

To help you get started, Blear comes bundled with a collection of beautiful photos. If you want to see a different photo, simply shake your device to get another one. Once you have customized the blurriness to your liking, you can save the image by tapping the save button on the right.

In addition to its standalone app, Blear also offers an Action Extension. This means that instead of opening the app itself, you can directly access Blear's functionality from the Photos app. Simply find a photo in the Photos app, tap the action button, and choose "Make Blurry Wallpaper" to instantly transform the photo into a blurry background.

With its easy-to-use interface and ability to create stunning blurry wallpapers, Blear is a great choice for anyone looking to personalize their iPhone's Home or Lock screen.