For each the apps on the alphabetical list, you'll see a small number listed below its title that shows how much data it has used. On an iPhone, you can check how much data each of your apps use by going to Settings > Cellular. If you use any of these apps daily, change these settings to reduce how much data they use. For a lot of people, that's Facebook, Instagram, Netflix, Snapchat, Spotify, Twitter and YouTube. The apps that use the most data typically are the apps that you use the most. A better way is to stop data-hungry apps from using too much data in the first place. Curtailing your phone use as you near your data cap at the end of each month is no way to live.
