How do I get my iPhone to use WiFi instead of data?

Turn Wi-Fi Assist on or off

Go to Settings > Cellular or Settings > Mobile Data. Then scroll down and tap the slider for Wi-Fi Assist.

Does my iPhone use data when connected to WiFi?

A bad Wi-Fi connection can still cause your iPhone (or iPad) to use cellular data. Added in iOS 9, Wi-Fi Assist recognizes when you’re connected to a Wi-Fi network, but have a poor or erratic signal. When this happens, Wi-Fi Assist kicks over automatically to cellular for foreground apps to keep data flowing.

Does WiFi automatically override mobile data?

You don’t have to worry about that because Android prioritizes WiFi over Mobile data. As soon as a WiFi network is connected to, mobile data will automatically switch off.

How do I stop my phone from switching from WiFi to data?

The same setting on Android phones can be found in the Connections area of the Settings app. Go to the WiFi settings, tap the three dots in the corner to find the advanced settings menu, and then turn off the toggle that says “Switch to mobile data.”

How do I automatically turn off data when connected to WiFi?

Once you’re on the Developer options screen, scroll down to the Networking group of settings, and turn the ‘Mobile data always active’ option off. What is this? With this option turned off, your device’s mobile data will be turned off when it’s connected to a WiFi network.