If you want to find out what a specific user likes on Instagram, Social Download Manager is a great tool for this. Social Download Manager is available as an Adobe Air application and it's completely free. Social Download Manager is easy to use; the only thing you need to do is create an account (it's free as well) and log into that account within Social Download Manager. Social Download Manager will remember your login credentials, making it unnecessary to log in every time Social Download Manager is opened.
When you open Social Download Manager, you can search for a user by their Instagram username or Social Network username (they don't have to be the same). However, searching Instagram hashtags can also be done, which is perfect for finding popular photos. Social Download Manager will automatically download the pictures that are found with Social Download Manager's search functions. You can set Social Download Manager to save your downloads in a specific destination on your computer. This makes Social Download Manager extremely convenient when it comes to downloading multiple images or saving different images in different folders. Social Download Manager is easy to use, useful and free. If Social Download manager doesn't suit your needs there are other alternatives available on the market like InstaGrab (demo).