I'm trying to update the What's Your Story app. I downloaded the newest apk and when I went to install it, it asked me if I wanted to install an update so I said yes. However when I open the app it still says it's out of date and won't let me proceed. I googled how to update an app from here and found one result that said all you needed to do was what I did, and then another result that said to use Helium to backup the app, uninstall, and reinstall. But then I can't get Helium to work. It won't work unless I switch to PTP which I can't do. I also googled how to do this and there is nowhere in my settings for this.