Technically speaking, no one can give you permission to use the images here. As the images depict copyrighted Star Wars characters, you would actually have to go and ask Disney, which isn't going to happen. Even fan art and fanfiction is a technical violation of ccopyright, it is just that it is more of a hassle than is worth to pursue every infringement.
I own a production company, and we've been doing a lot of app work lately, so let me give you a tip: make apps that are useful to a large, but specific group of people. A "Vode An app" fits the second, but not the first. Look at things in your life that you feel should be done better/quicker, check if someone has made an app, and if not, make it.