In many countries, mobile data can be expensive. If you have a limited data plan, it is crucial to keep track of your usage. Don't know how to do that on your iPhone? No problem!

This guide will show you how to check data usage on your iPhone with the built-in mobile data usage tracker. You will learn how to see how much data you have used during a certain period and how much data each app has used. Let's get started!

You can check your total data usage or see how much data individual apps are using.

Please note: If you are using two SIM cards, you can check the data usage of the second SIM card in the SIM Card section.