DailyWallpaper is an application that will make your phone surprise you every single day. Select category you like the most, and let the app change your wallpaper every 24 hours!
You can download this app in the Play Store: https://play.google.com/store/apps/details?id=pl.piotrskiba.dailywallpaper
In case of building this project yourself, you should put your Pixabay API key in gradle.properties file, using the following syntax:
API_KEY="your_api_key"
You should also put your google-services.json file in the "app" directory.