Sony has updated the PlayStation App moving it from build number 2.50.15 to version 2.55.8. The latest build allows the PS Store to be opened within the app and promo codes can now also be redeemed. The other main change is that comments received whilst broadcasting from the PlayStation 4 can be displayed on a second screen. The update is currently live on the Play Store or you can download the APK below.
DOWNLOAD APK: PlayStation App (2.55.8)