re: What is error 919 on my Android device?
Hi and welcome to iMore. This is primarily an Apple forum and your issue is to do with Android. However, a few of us use both devices, myself included, and I believe this error is to do with a network problem.
It could be poor reception where you are trying to download the app from the Google Play Store or it could be an issue with your carrier.
Try again when you have a stronger signal and make sure you have sufficient space on your device to download the app.