How to tell if Wi-Fi Assist is actually using too much iPhone data
There’s a feature on iPhones called Wi-Fi Assist that is a common source of confusion for a lot of users. Wi-Fi Assist helps your iPhone switch to cellular data with your carrier when your local Wi-Fi is too weak to offer fast enough loading speeds.
That sounds risky especially if you have a limited monthly data cap, but most people shouldn’t have to worry about turning Wi-Fi Assist off. Here’s how to check and understand how much data Wi-Fi Assist is actually using.