How to Fix Cellular Data Not Working on iOS 18 with Apps or iPhone
Some iPhone users have discovered that cellular data is not working on many apps after they have updated to iOS 18. For example, you might be driving and discover that you can no longer stream music from Music app, or can’t listen to podcasts from Spotify, or load reels on Instagram, or watch TikTok, but only when you’re on cellular data, and after updating an iPhone to iOS 18.
This is a common enough complaint that there are multiple posts about it on the Apple Support forums and elsewhere on the web, and I personally also encountered this issue after updating to iOS 18 as an iPhone as well. After updating to iOS 18, my cellular data worked with apps in a small range, but then all cellular data quickly stopped working at all if I drove just barely outside the city. This is understandably frustrating, but the behavior also gives a clue as to what might be wrong, and how to resolve the issues where apps are not working with cellular data after installing iOS 18.
For many users who experience difficulty with cellular data and iOS 18, the resolution to this problem is actually fairly simple.