By Conner Carey
Wi-Fi Assist was introduced with iOS 9. When enabled, Wi-Fi Assist will automatically switch over to your data plan if your Wi-Fi connection becomes too slow. When the feature was released, a lot of people were upset by the surprise charges they received from their data bills. With iOS 9.3, however, Apple added the ability to see how much data Wi-Fi Assist is using. Here’s how to check.