How can I check how much data I have left?

Android: Open the Settings app and tap on “Network & Internet.” Select “Data usage.” Under “Mobile data usage” you can see your current data consumption and view details of the apps that are using the most data.

iOS: Open the Settings app and go to “Mobile network” or “Mobile data.” Scroll down to display the data consumption of individual apps. Here, you can see the total consumption for the current billing period. To control data consumption, you can deactivate mobile data for certain apps.