If you want your existing apps to update automatically without waiting for Wi-Fi, you can adjust this in the same menu: Go to > Network preferences > Auto-update apps . Select Update all apps over Wi-Fi or mobile data .
If you have changed these settings and apps still won't download, consider these additional factors: Google Help How to update apps on Android - Google Play Help enable app download over cellular android
The primary way to control app downloads is through the Google Play Store app itself. If you want your existing apps to update
To enable app downloads over cellular data on Android, you must change your within the Google Play Store settings from "Over Wi-Fi only" to "Over any network" . enable app download over cellular android