I will try my best to re-design your super battery saver app to look better than the current or as per your requirements. I have android, so that I can download to check all the pages.
I am also from India and an individual graphic designer rather than working in a company. Thus, you can have a reliable communication with me.
Hope you will give me an opportunity to work in this project.
Feel free to ping me a message to discuss more.
Kind regards,
SM.