Profile Picture Download for Instagram is a free Android app developed by Axl Studios. As the name suggests, this app allows you to view and download Instagram profile pictures in their full resolution and size. It also offers a history of recently viewed display pictures and checks for new profile photos every time you start the app.

One of the interesting features of Profile Picture Download for Instagram is that it allows you to zoom into DPs of private accounts. Moreover, you don't need an Instagram account to use this app, making it accessible for everyone. It is quick and easy to use, and all you need to do is enter the desired username, hit enter, and tap "Download this picture" to save the photo to the gallery. However, it is important to note that this app is not affiliated with Instagram and is a third-party add-on.