What I end up having to do is purchase the app/game on my phone in the PlayStore, then through logging into the same account on my Shield, it then shows 'purchased' and I can download.
Further, for app/games with IAP's, I need to actually download the app on my s3, launch it, purchase, and hope it eventually sync's to my Shield.
One example would be The Walking Dead. A free title (for the first episode of the first season). I wanted to purchase the season pass so in addition to downloading the 1.37gb game on my Shield, I also had to download it k my s3. Launch the game. Purchase the season pass. 10 mins later it shows up as purchased on my Shield. Uninstall from s3. Oy dios mio.
As you can imagine this poses a problem, as many Shield games are not available on the s3. Also not all apps I see on the Play store on my s3, are supported on the shield. Infact I think I have two completely different PlayStores [while some apps show 'device not supported', others are just completely missing from the PlayStore].
How can I solve this monumental inconvenience? Please do not suggest piracy, I'm known to purchase apps solely to support indies. Unless it's a Whacktivision game, then post the apk immediately, pl0x.