Does anyone use both an Android and WP device?

I'm using the Note 4 as my primary device and have my Lumia 920 as a backup device.
 
I am using lumia 930 and HTC....

using Windows phone more comfortable to me.
but android have app that i need. :)
 
I've got an Icon and a 7inch ASUS Memo Pad tablet. Reason being there are apps I need in work not available for windows phone.
 
Does it count if my mom used one? I'm using Lumia 530 and my mom use Nokia X but I occasionally use it though to play games or use apps that only available for Android
 
My brother and mum use android phones as backups, and I use theirs now and then. I have WP as my main devices though.
 
ATIV SE/Galaxy S4 user here. I usually carry both around, and use them for different purposes (1 SIM card; so I use one phone as more of a tool). They use the same batterry, so I always have a backup. A few of my cases fit both for the most part too, so that's fun to experiment with.