You just have to keep it updated from the play store. This app helps you to access and customize all your photos. It's perfect replacement of your mobile gallery app.
The app comes with lots of customization and sharing features. You can easily manage all your photos and videos online and offline. I have downloaded this update to explore new features of this update.
The APK file comes with version number 1.23 update file size is 25.28MB. I found that it's a stable update for all Android mobile. So you can download it on any Android 4+ device.
You can download this update form below link:
Google Photos Apk v1.23