A free app for Android, by addquick.

The blur effect is a convenient way to hide an image in the photo or bring more focus to the subject. With the Blur app from addquick, you can easily create stunning images. This photo editing app can blur some parts of your photo with a tap. You can also adjust the strength of the effect based on your preference to make the image more attractive. Blur application works like a charm if you want to create a professional-looking photo with a blurred background.  It is also a handy application if you need to cover some sensitive information on an image.

The app also provides a user-friendly interface and smooth control. Plus, the app is free and works with android 4.4 and above.