For those of you who want to try out Google’s latest Daydream VR on your Nexus device running Android N, you can do so by installing the following APK files.
Download Daydream VR Controllerpaint.apk – This is for the actual VR paint program, download and install on your main VR phone.
Download Daydream VR Controller_emulator.apk – This is for your second phone that you want to use as an emulated controller.
For full instructions on how to install the Daydream VR demo on your Nexus devices, see Daydream VR demo and How to Install on Nexus N!
Credits – Google
What is an APK File?
APK File is a file/app that can be installed on any Android smartphone or tablet. Using an APK file, you can install Android apps manually on your Android device.
You do not need a rooted Android device to install APK files. For installation instructions, please see below.
How to Install APK Files
You will need to make sure Unknown Sources is checked ON in Settings to install APK files. We do recommend you to use a file explorer app such as ES File Explorer, available on the Play Store for free, to install these apps.