@tyler_kasz
eBay does have an app. You can download via google play. I personally don't use it.
I would more concerned with your mystery items that you have listed. Chance and mystery items are not allowed on eBay. Too many of those and eBay will shut you down. I suggest you end those listings to avoid any issues concerning. You cannot list your personal info in your listings as well, from Twitter, FB or personal email. I'd remove that as well.
Happy Selling