Image Border Editor is a free Android app developed by Valentin Wagner that allows you to add external borders to your images. This app falls under the category of multimedia and specifically under photography. With Image Border Editor, you can easily add borders of different colors and aspect ratios to your images.

One of the best things about this app is that all of its features can be used for free. You can choose from a wide range of colors and aspect ratios to add the perfect border to your images. Whether you want to give your photos a professional look or just add some fun to them, Image Border Editor is a great choice.

Overall, Image Border Editor is a simple and easy-to-use app that does what it promises. If you're looking for a free app to add borders to your images, this is definitely worth checking out.