My Nexus 6's USB port stopped working last week and my replacement just arrived. Does anyone know of a way that I can transfer app data from one phone to another without having use of the USB port?

All of the root instructions I've seen me to plug my phone into the computer at some point, and that won't work since the USB port isn't working.

Helium is a data backup and restore app that doesn't require root access, but it does require me to plug the phone into a computer.

Any other ideas?

At issue are a few games where I've made in-app purchases. Although the app itself transferred to my new phone during the touch & go sync process, when I launch the game it's as if I'm a new user...none of my progress or in-app purchases carry over.

Thanks!